alcatel-lucent.test-king.4a0-108.v2018-06-27.by.andrew · 2018. 6. 27. · 4a0-108.exam.149q number...

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4A0-108.exam.149q

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4A0-108

Alcatel-Lucent Multicast Protocols

Sections1. Volume A2. Volume B3. Volume C4. Volume D


Exam A

QUESTION 1How does IGMP snooping eliminate multicast flooding on the LAN?


A. The switch populates multicast source addresses into the forwarding table

B. The switch acts as an IGMP proxy for the receiver

C. The switch inspects IGMP messages between receivers and routers and populates the forwarding table with active multicast group addresses

D. The switch inspects all multicast traffic between receivers and routers and populates the forwarding table with active multicast group addresses

Correct Answer: CSection: Volume AExplanation

Explanation/Reference:

QUESTION 2Refer to the configuration exhibit.


What will happen when this router receives an IGMPv3 exclude none report for group 232.1.1.1?

A. The router will propagate a (*, 239.1.1.1) join towards RP if it exists

B. The router will randomly pick a source from 192.168.1.1 and 192.168.1.2 and send an (S, G)join towards the source

C. The IGMPv3 report will be dropped and a log about misconfiguration will be generated

D. The router will send a PIM (192.168.1.1,232.1.1.1) Join

Correct Answer: DSection: Volume AExplanation


QUESTION 3Refer to the following exhibit.


Assuming all links have an equal metric in the IGP, where will the Shared Path Tree be built when Receiver 3 joins the multicast group?

A. Router G-E-C

B. Router G-E-C-A

C. Router G-E-D-B-A

D. There is insufficient information to answer

Correct Answer: ASection: Volume AExplanation




Assuming all links have an equal metric in the IGP, where will Source Path Tree have been created if Receiver 2 and Receiver 3 have joined the multicast groupand the source is sending and the switchover has occurred? (Choose two)

A. Router F-D-B-A

B. Router G-E-C-A

C. Router C-E-D-B-A

D. Router G-E-C


E. Router F-D-E-C

Correct Answer: ABSection: Volume AExplanation


QUESTION 5What is the function of the MDT?

A. It is how PIM neighbors become aware of each other

B. It is how receivers signal the source

C. It is the path to the RP

D. It is the multicast data forwarding path

E. It is the path to the DR



QUESTION 6What impact will an asymmetric IGP routing topology have on the PIM RPF check?

A. The PIM RPF check may fail since traffic from the source may arrive on one interface while the IP route to the source may point to another interface on the PIMrouter

B. PIM does not work in an asymmetric topology and therefore the RPF check will not be done

C. There will be no impact since the shared and source path trees are built from the receiver to the source

D. There is not enough information provided to answer the question




QUESTION 7How many multicast groups may a single receiver join at any one time?

A. 1

B. 2

C. 4

D. 256

E. As many as the operating system and software allow

Correct Answer: ESection: Volume AExplanation


QUESTION 8Where is the best placement of the Rendezvous Point in a PIM SSM network?

A. As close as possible to the multicast source

B. The Rendezvous Point is not required in a PIM SSM network

C. In the redundant core

D. As close as possible to the receiver

E. The Rendezvous Point can be positioned at any router without impact

Correct Answer: BSection: Volume AExplanation


QUESTION 9Refer to the following configuration exhibit.


How many interfaces have receivers joining group 239.1.1.1?

A. 1

B. 2

C. 3

D. There is insufficient information to answer



QUESTION 10Which of the following commands will verify the PIM DR on an interface on the Alcatel-Lucent 7750 SR?

A. Show router pim status

B. Show router pim neighbor


C. Show router pim interface

D. Show router pim statistics




The interfaces' IGP metric is as shown and PIM is using unicast table for RPF-check. What will happen when Router B receives the register message on itsinterface facing Router A?

A. Discard the register message as RPF-check fails

B. Forward the register message to Router D (RP) according to its routing table

C. Forward the register message out of all the interfaces in its (", 239.1.1.1) entry's outgoing interface list

D. Forward the register message out of all the interfaces in its (192.168.1.1, 239.1.1.1) entry's outgoing interface list

Correct Answer: B


Section: Volume AExplanation


QUESTION 12Which of the following configuration steps are mandatory for IPv4 PIM ASM to work? (Choose two)


A. Configure PIM on core and source facing interfaces

B. Configure PIM on access facing interfaces

C. Configure RP statically or via BSR

D. Create and apply register and join policies

E. Define the rpf-table

Correct Answer: ACSection: Volume AExplanation


QUESTION 13Four routers share a multi-access network. Router A is configured with a PIM DR priority of 10, Router B is configured with a PIM DR priority of 100, Router C andRouter D are at the default value. Router D has the highest IP address. Which Router will be elected the PIM DR?

A. Router A

B. Router B

C. Router C

D. Router D

Correct Answer: B


Section: Volume AExplanation


QUESTION 14An IGMP version 3 receiver signals EXCLUDE mode with an empty EXCLUDE list. What does this indicate?

A. This is the initial join message and exclusions of sources will follow

B. It is willing to receive traffic from any source

C. This is the initial join message and a selection of source will follow

D. This is the way it indicates it is leaving the group



QUESTION 15Select the statements that relate to the Shared Path Tree. (Choose three)

A. The RP is the root of the tree

B. The multicast source is the root of the tree

C. It is represented by (*, G) entries

D. It is represented by (S, G) entries

E. The path between receiver and source is always the shortest path

F. It is always created as a result of switchover

G. It is the initial forwarding path created

Correct Answer: ACGSection: Volume AExplanation



QUESTION 16When forwarding a multicast frame, normal behavior for a LAN switch (without IGMP snooping enabled) is to forward the frame as if it were:

A. A unicast frame with a known destination in the forwarding table

B. A unicast frame with an unknown destination in the forwarding table

C. A unicast frame with a known source in the forwarding table

D. A unicast frame with an unknown source in the forwarding table





Assume all links have an equal metric in the IGP. Receiver 2 and Receiver 3 have joined the multicast group and the source is not sending. Where will the SharedPath Tree have been created? (Choose two)

A. Router G-E-C

B. Router F-D-E-G

C. Router F-D-E-C

D. Router C-A

E. Router F-D-B-A

F. Router G-E-C- A

G. No Shared Path Tree will have been created




QUESTION 18What is the position of the router shown in the exhibit?


A. The RP

B. The first hop router from the source


C. The router where the Source and Shared Path Trees diverge

D. An upstream router from the diverging router on the Shared Path Tree



QUESTION 19How many responses should be received if IGMP version 3 is in use and a router sends a Query to a specific multicast group that has 6 active receivers on thelocal broadcast domain?

A. 1

B. 2

C. 6

D. 7

E. It will be random



QUESTION 20Which of the following commands will verify, either directly or indirectly, if PIM is configured on an interface on the Alcatel-Lucent 7750 SR? (Choose two)


A. show router pim interface

B. show router pim status detail


C. show router pim status

D. show router interface detail

Correct Answer: ADSection: Volume AExplanation



Assume all links have an equal metric in the IGP. Receiver 2 and Receiver 3 have joined the multicast group and the source is sending. Where will the Shared PathTree have been created before switchover? (Choose two)


A. Router G-E-C

B. Router F-D-E-G

C. Router F-D-E-C

D. Router C-A

E. Router F-D-B-A

F. Router G-E-C-A

G. No Shared Path Tree will have been created



QUESTION 22Which of the following statements best describes the behavior seen in the network when a receiver joins a multicast channel in the PIM ASM network shown in theexhibit?

A. Both Router B and Router C will propagate a PIM (*, G) Join to the RP when a receiver joins

B. Only Router B will propagate a PIM (*.G) Join to the RP when a receiver joins

C. Only Router C will propagate a PIM(\G) Join to the RP when a receiver joins

D. Depends on the next hop for RP in Router D's RPF table




QUESTION 23When forwarding a multicast frame, the normal behavior for a LAN switch with IGMP snooping enabled is to forward the frame based on the similar rules as if itwere:

A. A unicast frame with a known destination in the forwarding table

B. A unicast frame with an unknown destination in the forwarding table

C. A unicast frame with a known source in the forwarding table

D. A unicast frame with an unknown source in the forwarding table



QUESTION 24The first actions of a router after enabling PIM on the interfaces will be:

A. BSR elections followed by DR elections

B. DR elections followed by PIM Hello messages

C. DR elections followed by BSR elections

D. BSR elections followed by PIM Hello messages

E. PIM Hello messages followed by BSR elections

F. PIM Hello messages followed by DR elections

Correct Answer: FSection: Volume AExplanation




PIM is using the unicast table for RPF-check and the interface IGP metrics are shown. What will happen when Router B receives the multicast packet on itsinterface facing Router A?

A. Discard the multicast packet as RPF-check fails

B. Forward the multicast packet to Router D (RP) according to its routing table

C. Forward the multicast packet out of all the interfaces in its (*,239.1.1.1) entry's outgoing interface list

D. Forward the multicast packet out of all the interfaces in its (192.168.1.1,239.1.1.1) entry's outgoing interface list



QUESTION 26What multicast component has no function at all in a PIM SSM network?


A. The PIM routing protocol

B. SSM translation on access multicast router

C. The RP

D. IGMP snooping

E. IGMP Querier



QUESTION 27Which MDT types are used in a Sparse Mode network? (Choose two)

A. Shared Path Tree

B. Source Path Tree

C. Spanning Tree

D. Special Path Tree

E. Switchover Path Tree

Correct Answer: ABSection: Volume AExplanation


QUESTION 28How does the RP get the first multicast data packet from source?

A. Via the Source Path Tree

B. Via a Register Message which encapsulates the multicast traffic

C. Via a Bootstrap Message which encapsulates the multicast traffic

D. Via the Shared Path Tree

Correct Answer: B


Section: Volume BExplanation


QUESTION 29Who periodically sends IGMP Host Membership Queries?

A. The router elected as Querier on a LAN

B. The first host to expire their local suppression timer

C. Only the multicast enabled hosts on a LAN

D. All routers on a LAN

E. All multicast enabled routers on a LAN

Correct Answer: ASection: Volume BExplanation




Choose the best answer that describes the multicast LAN.

A. There are no active sources in the network

B. There is one active source for 239.1.1.1 and two active sources for 239.2.2.2

C. The devices on sap 1/1/4 and sdp 1000:500 have issued joins for 239.1.1.1

D. There is a router on sdp 1000:500

Correct Answer: DSection: Volume BExplanation


QUESTION 31An IGMP version 3 receiver signals INCLUDE mode with an empty INCLUDE list. What does this indicate?

A. It is willing to receive traffic from all sources

B. It is willing to receive traffic from any source

C. This is the initial join message and a selection of source will follow

D. This is the way it indicates it is leaving the group



QUESTION 32What is the position of the router shown in the exhibit?


A. The first hop router from the source

B. The RP

C. One router upstream on the Shared Path Tree from the diverging router

D. The last hop router from the source





Assume all links have an equal metric in the IGP. Receiver 2 has joined the multicast group and the source is sending. After the switchover of Router F, will abranch of the Shared Path Tree still exist between Router D and Router E?

A. Yes. As it is maintained by the PIM hellos, it will exist until Router D or Router E is PIM disabled

B. Yes, it will exist until the source stops sending multicast traffic

C. Yes, it will exist until Router D prunes itself from the shared path tree

D. No. Only Source Path Trees will remain

Correct Answer: CSection: Volume BExplanation



QUESTION 34Which of the following PIM messages is sent to RP via unicast?


A. (*, G) Join/Prune

B. (S, G) Join/Prune

C. Register

D. Candidate-RP-Advertisement



QUESTION 35How often will a router issue IGMP Host Membership Reports for group 224.0.0.2?

A. Never

B. 30 seconds

C. 60 seconds

D. 120 seconds

E. 260 seconds

F. A router will never join this group




QUESTION 36Which of the following are mandatory functions of a multicast receiver on a multicast network using IGMP version 2? (Choose two)

A. Report their multicast group membership to their local router

B. Signal their local router as they join and leave multicast groups

C. Generate feedback to the network or source

D. Listen for announcements advertising available sessions from the source

E. Generate multicast data to the group

Correct Answer: ABSection: Volume BExplanation


QUESTION 37Select the statements that relate to the Source Path Tree in ASM. (Choose three)

A. The RP is the root of the tree

B. The multicast source is the root of the tree

C. It is represented by (*, G) entries

D. It is represented by (S, G) entries

E. The path between receiver and source is always the shortest path

F. The Source Path Tree cannot be created without the RP

G. It is the initial forwarding path created

Correct Answer: BDESection: Volume BExplanation


QUESTION 38


If the access network supports IGMP version 2 only, what additional configuration is required to enable the SSM model?

A. IGMP snooping

B. IGMP compatibility mode support

C. IGMP version 2 to IGMP version 3 translations

D. IGMP (*, G) Join to PIM (S. G) Join translation

E. PIM ASM to PIM SSM translations



QUESTION 39Which of the following PIM messages are sent towards RP? (Choose two)

A. (*, G) Join/Prune

B. (S.G) Join/Prune

C. Register Stop

D. (S, G, rpt) Join/Prune

Correct Answer: ADSection: Volume BExplanation




Assume all links have an equal metric in the IGP. Receiver 2 has joined the multicast group and the source is sending. As a result of Router F switching to theSource Path Tree, what message will be generated by Router D in the direction of Router E?

A. PIM(*, G)Join

B. IGMP(*, G)Join

C. PIM Hello

D. PIM (S, G)RP-bit prune

E. PIM (*, G)RP-bit prune




QUESTION 41Which of the following statements about Mrouter port is false?

A. Mrouter port is indicated by (**) entry in the MFIB

B. Mrouter port can be configured manually

C. A port on which any type of IGMP message is received will be set as an mrouter port

D. IGMP reports will only be forwarded out of mrouter ports once igmp-snooping is enabled in the vpls service



QUESTION 42Refer to the exhibit.

Who will be the RP for group 239.1.34.92?

A. 10.10.10.24 since Dynamic has higher priority than Static

B. 10.10.10.66 since 239.0.0.0/8 is more specific than 224.0.0.0/4


C. Both since 239.1.34.92 is part of both ranges

D. It depends on the setting of the override parameter

E. Neither since this presents a conflict



QUESTION 43Refer to the configuration exhibit.


Channel 239.1.1.11239.1.1.2, 239.1.1.3 and 239.1.1.5 have already been established.


What will happen when this router receives a IGMP report to join group 239.1.1.6?

A. The router will tear down channel 239.1.1.3 as it's non-mandatory and establish a new channel for 239.1.1.6

B. The router will tear down either channel 239.1.1.1 or 239.1.1.2 as they are low class and establish a new channel for 239.1.1.6

C. No existing channel will be torn down and the new channel for 239.1.1.6 will be established as there is enough resource

D. The new channel 239.1.1.6 won't be established and a log will be generated



QUESTION 44Which of the following statements is true regarding BSR and RP?

A. The same router cannot be configured as a BSR candidate and as a static RP

B. The same router cannot be a candidate-RP and a BSR-candidate at the same time

C. There is only one active RP in a multicast routing domain at anytime

D. There is only one elected BSR in a multicast routing domain at anytime



QUESTION 45Why should the anycast RP address not be the system address of a router?

A. 7750 SR configuration does not permit using the system address for an anycast address

B. The system address of a router has to be a unique address within a domain while the anycast address is configured on multiple routers within the domain

C. PIM will not be able to establish its signaling sessions if the anycast address uses the system address

D. None of the above

Correct Answer: B




QUESTION 46Which statement best describes the impact of an RP failure in a PIM ASM network?

A. All the existing multicast traffic will be stopped immediately as PIM ASM network must have an RP in order to transmit all the multicast traffic

B. The multicast traffic will be impacted, but not immediately. Multicast routers will not discover the RP failure until the timer expires and the multicast traffic flowwill be stopped.

C. No impact at all as RP is not required in a PIM ASM network

D. The traffic will not be impacted if the multicast traffic flows have already been established and the traffic flow does not involve the RP in the path



QUESTION 47What is the embedded RP for group FF7E: 130:2000:2001:2002:2003:: 1000? (The exhibit of Group-to-RP Mapping is just for your reference)

A. 2000:2001:2002:2003::1


B. 2000:2001:2002:2003::3

C. 2000:2001:2002::1

D. 2000:2001:2002::3



QUESTION 48What is the Solicited-node multicast address for host 2001:1000:2000:3000::2001:2002:2003?

A. FF02::FF02:2003

B. FF02::FE02:2003

C. FF02::FF:FE02:2003

D. FF02::1:FF02:2003




QUESTION 49Which of the following statements about MLD protocol is true?

A. All MLD messages are sent with interface global IPv6 address

B. MLDv3 is similar to IGMPv3 which can include/exclude the source ip address for specific groups


C. MLD messages are a subset of ICMPv6 messages

D. By default, MLD messages hop limit is set to 255



QUESTION 50Which of the following statements about the PIM messages for IPv6 multicast routing is false?

A. Hello, Join/prune messages use All-PIM-Routers multicast address (FF02 D) as destination

B. Register message uses RP's global unicast IPv6 address as destination

C. Hello, Join/prune messages use outgoing interface's global unicast IPv6 address as source address

D. Register message uses outgoing interface's global unicast IPv6 address as source address





According to the PIM configuration on SR-3, can the receiver in the diagram receive multicast traffic from the source for group FF1E::1234? Assume all the otherconfigurations are correct.

A. Yes. The configuration of PIM is correct and the receiver should get traffic from the source

B. No. As the "rpf6-table" command is missing

C. No. As the rp configuration is missing. There should be at least one RP selection method from static, bsr or embedded-rp

D. No. As the "no IPv6-multicast-disable" command is missing

E. B, C and D




QUESTION 52What is the signaling protocol used by a multicast receiver?

A. IGMP

B. PIM

C. PIM or IGMP

D. PIM and IGMP are both used by a multicast receiver

E. BSM



QUESTION 53Which one of the following services is provided by the use of PIM as a multicast routing protocol?

A. Authentication

B. Guaranteed Delivery

C. Device Security

D. Preventing packet forwarding loops

E. Preventing Denial of Service attacks




QUESTION 54Which MAC address will the IPv4 multicast address 239.33.42.107 be translated to?

A. 01-00-5e-a1-2a-6b

B. 01-00-5e-21-2a-6b

C. 01-00-5e-21-2c-6c

D. 00-01-5e-a1-2a-6b

E. 00-01-5e-21-2a-6b

F. 00-01-5e-a1-2c-6b

Correct Answer: BSection: Volume BExplanation


QUESTION 55Which of the following are NOT characteristics of the many to many model of multicast data delivery? (Choose two)

A. Receivers are generally unknown by the source

B. Receivers are generally known by each other since any receiver may be a source

C. Well suited for applications in which the receivers provide feedback to each other and the source

D. All devices are potentially capable of generating multicast data

E. Well suited for applications such as video on demand where each source sends a separate data stream to each of the many different receivers

Correct Answer: AESection: Volume BExplanation


QUESTION 56Which of the following protocols are used for IPv6 multicast?

A. IGMPv3 and MBGP


B. MLD and MBGP

C. IGMPv3 and PIM SM

D. MLD and PIM SM



QUESTION 57Which of the following statements regarding mCAC is false?

A. Multicast CAC allows a service provider to guarantee the availability of mandatory IPTV channels

B. The aim of multicast CAC is to maintain the quality of existing IPTV channels by rejecting new channel joins when required

C. Multicast CAC measures the current bandwidth utilization on the physical links and then decides whether to accept a new channel or not

D. Multicast CAC policy can be applied to VPLS SAP and SDP with IGMP-snooping



QUESTION 58Does the interface whose address is used as BSR candidate require PIM enablement?

A. Yes, that interface must be PIM enabled

B. No, it is unnecessary to enable PIM on that interface

C. If it's a physical interface, that interface should be PIM enabled, otherwise it is unnecessary

D. If the RPF check is using the multicast routing table, that interface should be PIM enabled, otherwise it is unnecessary




QUESTION 59What are the benefits of anycast RP? (Choose three)

A. Provide RP redundancy in a PIM SM network

B. Avoid the issue of shared-tree traffic concentration on a single RP in the network

C. Used to support incongruent topologies

D. Provide more optimal routing of the Shared Path Tree by allowing redundant RPs to be located closer to receivers

E. Provide more optimal routing of the Source Path Tree by allowing the receiver to connect to the closest multicast source

Correct Answer: ABDSection: Volume BExplanation


QUESTION 60Why do RPs configured for anycast RP-set exchange Register messages?

A. To inform each RP about all of the multicast sources in the domain

B. There is no need for this. This is purely an optional functionality as described in the anycast RP draft

C. To inform each RP about all of the multicast enabled receivers

D. To facilitate the anycast RP election process

E. None of the above



QUESTION 61Under what circumstances will the multicast data flow remain on the Shared Path Tree in a PIM ASM network?

A. When multicast traffic is below a configured threshold

B. It will always remain on the Shared Path Tree


C. It will never remain on the Shared Path Tree

D. When PIM Dense Mode is in use



QUESTION 62What is the reason why multicast MAC addresses do not provide a unique representation of IPv4 multicast addresses?

A. Multicast MAC addresses do provide a unique representation of IP multicast addresses if the administrator configures the translation correctly

B. The MAC layer does not provide a means for identifying multicast traffic

C. There are insufficient bits available in the multicast MAC address to provide for a one to one relationship to a multicast IP address

D. There are insufficient bits available in the multicast IP address to provide for a one to one relationship to a multicast MAC address



QUESTION 63Which MAC address will the IPv4 multicast address 224.128.0.1 be translated to?


A. 01-00-5e-80-00-01

B. 01-00-5e-22-41-40

C. 01-00-5e-22-28-01

D. 00-01-5e-80-00-01


E. 01-00-5e-00-00-01

F. 00-01-5e-22-28-01

Correct Answer: ESection: Volume BExplanation


QUESTION 64Which of the following are characteristics of the one to many model of multicast data delivery? (Choose two)

A. Receivers are generally unknown by the source

B. Receivers are generally known by each other

C. Well suited for applications in which the receivers provide feedback to each other and the source

D. There is a single data flow for each group on the source segment

E. All devices are potentially capable of generating multicast data

F. Well suited for applications such as video on demand where each source sends a separate data stream to each of the many different receivers

Correct Answer: ADSection: Volume BExplanation


QUESTION 65How many bits of the IP multicast address are copied directly to the multicast MAC address?

A. 5

B. 9

C. 23

D. 27

E. 28

Correct Answer: CSection: Volume B


Explanation


QUESTION 66Which of the following PIM messages are sent via unicast? (Choose two)

A. (*.G) Join/Prune

B. (S.G) Join/Prune

C. Register

D. Candidate-RP-Advertisement

Correct Answer: CDSection: Volume BExplanation


QUESTION 67Which of the following is a name for PIM Sparse Mode operation that utilizes an RP?

A. RP Multicast

B. Any Source Multicast

C. Source Based Multicast

D. Source Specific Multicast

E. All Sender Multicast



QUESTION 68What is the trigger for PIM Assert?


A. When a router receives an IGMP Query from another device

B. When a router receives a PIM Hello from another device

C. When a router receives a BSM from a router with a better priority

D. When a router receives a multicast data packet on an outgoing interface



QUESTION 69Which of the following events could trigger a PIM router sending an (S,G) Join message? (Choose three)

A. Receiver performing IGMP version 3 (S, G) report

B. Receiver performing enhanced IGMP version 2 signaling

C. Router performing PIM Source Path Tree signaling

D. Router performing translation to convert a standard IGMP (*, G) Join into a PIM (S, G) Join

E. RP performing translation to convert a PIM (*, G) Join into a PIM (S, G) Join



QUESTION 70With IGMP snooping enabled, how does a LAN switch identify ports with routers attached?

A. The same way as it identifies receivers

B. From the IGMP Host Membership Reports received

C. From the default gateway address of unicast frames

D. From the IGMP Queries received

E. The switch issues a message on all ports to which only routers respond

Correct Answer: D




QUESTION 71The default version of IGMP on the Alcatel-Lucent 7750 SR is:

A. Configured manually

B. Version 1

C. Version 2

D. Version 3



QUESTION 72What is the multicast MAC address for IPv6 multicast address FF1E:: 1234:5678?

A. 33:33:12:34:56:78

B. 33:33:FF:34:56:78

C. 33:33:FE:34:56:78

D. 33:33:FF:FE:56:78





What will happen if host 2 issues an IGMP report to join a group?

A. Both Router A and Router B will get this IGMP report and Router B will propagate a PIM join towards the core network

B. Both Router A and Router B will get this IGMP report and both of them will propagate a PIM join towards the core network

C. Only Router A will get this IGMP report and Router A will propagate a PIM join towards the core network

D. Only Router A will get this IGMP report and as Router A is not PIM DR. so no further action



QUESTION 74What does the term ‘incongruent unicast and multicast routing’ refer to? (Choose the best answer)

A. This is another term for asymmetric routing

B. This refers to having different routing policies or routing topologies for unicast and multicast networks

C. This refers to the case when the base routing table imports routes from two different protocols


D. This refers to the case when unicast and multicast routing tables contain the same route entries



QUESTION 75If a router receives a packet addressed to a broadcast destination, it will:

A. Drop the packet by default

B. Forward the packet by default

C. Flood the packet to all ports except the receiving port

D. Flood the packet to all ports including the receiving port



QUESTION 76Is the RP mandatory in an ASM network?

A. Yes

B. No

C. Depends on whether there is an elected BSR. With an elected BSR, RP is not mandatory. Without an elected BSR, RP is mandatory

D. In IPv4, RP is mandatory for ASM. In IPv6, it is not




QUESTION 77Which of the following is a characteristic of a packet with a destination address in the Local Network Control Block address range?

A. A packet with this address is always forwarded throughout the multicast routing domain but never forwarded outside the multicast routing domain

B. A packet with this address can only be processed by a router

C. A packet with this address is never forwarded beyond the local link unless the TTL is greater than 1

D. A packet with this address is never forwarded beyond the local link regardless of the TTL



QUESTION 78What will be the immediate action of the last hop router on receipt of an IGMP version 2 leave message?

A. It will send a PIM (*, G) prune to the RP

B. It will send a PIM (S, G) prune to the source

C. It will send a PIM (*, G) prune to the RP and a PIM (S, G) prune to the source

D. It will issue an IGMP Group Specific Query


E. It will issue an IGMP General Query




QUESTION 79Which of the following statements about MLD snooping is false?

A. MLD snooping enables switches to forward multicast data to specific hosts that want to receive the data

B. MLD snooping can co-exist with IGMP snooping in the same VPLS service

C. Once MLD snooping is enabled, the switch can snoop both MLDv1 and MLDv2 messages

D. MLD snooping snoops MLD report and done messages, not query messages



QUESTION 80How many responses should be received if IGMP version 2 is in use and a router sends a Query to a specific multicast group that has 6 active receivers on thelocal broadcast domain?

A. 1

B. 2

C. 6

D. 7

E. It will be random



QUESTION 81What is the range of IPv4 multicast addresses allocated for SSM?

A. 239.0.0.0/8

B. 233.x.y.0/24

C. 224.0.0.0/24


D. 232.0.0.0/8

Correct Answer: DSection: Volume CExplanation


QUESTION 82Which of the following Query messages are supported by IGMP version 3? (Choose three)

A. Group Specific Query

B. Group Membership Query

C. Host Query

D. Source Specific Query

E. Group-and-Source Specific Query

Correct Answer: ABESection: Volume CExplanation


QUESTION 83How often does a router issue IGMP Host Membership Reports for group 224.0.0.2?

A. Never

B. Every 30 seconds

C. Every 60 seconds

D. Every 120 seconds

E. Every 260 seconds

Correct Answer: ASection: Volume CExplanation



QUESTION 84Click the exhibit.

Which of the following describes the router that produced the output shown in the exhibit?


A. The router is the first hop router from the source.

B. The router is the RP.

C. The router is one router upstream on the Shared Path Tree from the diverging router.

D. The router is the last hop router from the source.



QUESTION 85What message does the diverging router (router where the shared and Source Path Trees diverge) generate to stop the multicast traffic arriving via the RP?

A. PIM (*, G) Join

B. IGMP (*, G) Join

C. PIM Hello

D. PIM (*, G) RP-bit prune

E. PIM (*, G) RP-bit prune



QUESTION 86How many responses are received when a router sends an IGMP version 2 query to a specific multicast group with 6 active receivers on the local broadcastdomain?

A. 1

B. 2

C. 6

D. 7




QUESTION 87Which of the following regarding the Source Path Tree is TRUE?

A. The RP is the root of the tree.

B. It is represented by a (*, G) entry.

C. It is the initial forwarding path in ASM mode.

D. It can be created without the RP.



QUESTION 88An IGMP version 3 receiver signals INCLUDE mode report with an empty INCLUDE list. What does this indicate?

A. It received the query, but it does not wish to join any group.

B. It is willing to receive traffic for the group from any source.

C. This is the initial join message; a selection of source will follow.

D. It indicates that it is leaving the group.





Which of the following BEST describes the multicast LAN?

A. There are no active sources in the LAN.

B. There is one active source for 239.1.1.1, and two active sources for 239.2.2.2.

C. The devices on SAP 1/1/4 and SDP 1000:500 have issued joins for 239.1.1.1.

D. There is a router on SDP 1000:500.



QUESTION 90Which of the following functions is not required in a PIM SSM network?

A. PIM routing protocol

B. SSM translation on the access multicast router

C. RP

D. IGMP snooping

E. IGMP Querier

Correct Answer: CSection: Volume C


Explanation



Which of the following regarding the displayed RP configuration is TRUE?

A. Two static RPs cannot be configured on the same device.

B. 10.10.10.24 is the RP for 230.1.1.1; while 10.10.10.66 is the RP for 234.1.1.1.

C. 10.10.10.24 is the RP for 234.1.1.1; while 10.10.10.66 is the RP for 230.1.1.1.

D. Only one static RP can be configured with override.

Correct Answer: CSection: Volume CExplanation


QUESTION 92


Which features are introduced in IGMP version 2? (Choose two)

A. Leave group message

B. Report suppression is eliminated

C. IGMP snooping

D. TTL of 1 for IGMP messages

E. Formalized IGMP Querier election

Correct Answer: AESection: Volume CExplanation


QUESTION 93Which of the following about PIM messages for IPv6 multicast routing is FALSE?

A. Hello and Join/Prune messages use All-PIM-Routers multicast address (FF02::D) as destination.

B. Register messages use the RP's global unicast IPv6 address as destination.

C. Hello and Join/prune messages use the outgoing interface's global unicast IPv6 address as source address.

D. Register messages use the outgoing interface's global unicast IPv6 address as source address.



QUESTION 94Which of the following ranges is reserved for IPv6 SSM multicast addresses?

A. FF1X::/16

B. FF3X::/16

C. FF3X::/96

D. FF7X::/16





What is the embedded RP for group FF7E:130:2000:2001:2002:2003::1000? (Please note: the exhibit shows the group-to-RP mapping for your reference only.)

A. 2000:2001:2002:2003: :1

B. 2000:2001:2002:2003::3

C. 2000:2001:2002: :1

D. 2000:2001:2002::3





Assume the I-PMSI group address is G. How many PIM (S,G) entries are on the P (RP) router?

A. Only one, and S is PE1.

B. Only one, and S is the MC source server's IP address.

C. None, as RPonly maintains (*,G) state.

D. Three, and S is PE1, PE2 and PE3 respectively.





The configuration is applied to the ingress PE, but receivers at the remote PE site do not receive multicast traffic. Which of the following is a possible cause?


A. The selective tunnel signaling must be pim-asm.

B. The data-threshold group range must match the s-pmsi group range.

C. The selective tunnel configuration must be applied to the egress PEs as well.

D. The MVPN configuration is correct, so there may be a problem with PIM in the core.




QUESTION 98Which of the following pairs correctly completes the sentence below?

When Draft Rosen is deployed, PEs exchange CEs' unicast routing information via_________and exchange CEs'multicast group information via____________.

A. MP-BGP, PIM

B. MP-BGP, MP-BGP

C. mLDP, PIM

D. MP-BGP, mLDP



QUESTION 99Which of the following conditions triggers the S-PMSI construction in Draft Rosen?

A. If multicast data exceeds the threshold set on the ingress PE, the S-PMSI is constructed.

B. If multicast data exceeds the threshold set on the egress PE, the S-PMSI is constructed.

C. If the number of interested receivers exceeds the threshold set on the egress PE, the S-PMSI is constructed.

D. If the number of interested receivers exceeds the threshold set on the ingress PE, the S-PMSI is constructed.



QUESTION 100Which of the following about the default MDT in Draft Rosen is TRUE?

A. It is also known as the I-PMSI. Each MVPN has only one I-PMSI.

B. It is also known as the S-PMSI. Each MVPN has only one S-PMSI.

C. It is also known as the I-PMSI. Each MVPN may have multiple I-PMSIs.


D. It is also known as the S-PMSI. Each MVPN may have multiple S-PMSIs.



QUESTION 101What is the DATA_DELAY_INTERVAL?

A. It is the delay before the source PE switches traffic from the I-PMSI to the S-PMSI.

B. It is the delay before the source PE sends MDT Join TLVs.

C. It is the delay before the source PE switches traffic from the S-PMSI to the I-PMSI when traffic rate drops below the threshold.

D. It is the delay before the receiver PE prunes the S-PMSI.



QUESTION 102Which protocol is used to establish the S-PMSI in Draft Rosen?

A. PIM DM

B. PIM SSM

C. PIM ASM

D. Either PIM SSM or PIM ASM

Correct Answer: BSection: Volume CExplanation



QUESTION 103In Draft Rosen, a PE router encapsulates customer multicast packets into provider packets. What is the destination IP address of the provider packets sent on the I-PMSI?

A. The destination group address of the customer packets.

B. The multicast group address configured for the I-PMSI.

C. The system IP address of the receiving PE.

D. A multicast group address selected from the range of addresses specified in the I-PMSI configuration.





Based on the output displayed, which of the following is TRUE?

A. This router is a PE attached to the multicast source of group 239.1.1.1.

B. Router 1.1.1.1 is a PE attached to the multicast source of group 239.1.1.1.

C. Router 192.168.1.2 is a PE attached to the multicast source of group 239.1.1.1.

D. Router 192.168.1.2 is a PE attached to a receiver interested in group 239.1.1.1.




QUESTION 105Which of the following about the I-PMSI is TRUE?

A. The I-PMSI enables a PE to transmit packets to a subset of PEs in the MVPN.

B. An I-PMSI cannot be instantiated by MPLS P2MP P-tunnels.

C. The I-PMSI is created and signaled by PIM or BGP Auto Discovery.

D. An I-PMSI can be reused in multiple MVPNs.



QUESTION 106Which of the following is NOT required when configuring an MVPN with mLDP as its S-PMSI?

A. The MVPN must be configured with auto-discovery default.

B. The I-PMSI must also use mLDP.

C. A range of multicast group addresses must be specified for the S-PMSI tunnels.

D. A data threshold must be specified for instantiating the S-PMSI.



QUESTION 107Which of the following about distributing customer multicast group information via BGP A-D is FALSE?

A. It supports the use of P2MP LSPs as PMSI tunnels.

B. It supports both PIM ASM and PIM SSM in a customer network.

C. There are three new types of BGP A-D routes defined for distributing customer multicast group information.

D. Two new extended communities are applied to all multicast routes in the VPRN for UMH selection.





Which of the following statements is TRUE regarding the group address 239.1.1.1 in the BGP A-D message?

A. 239.1.1.1 is the destination multicast group address of this message.

B. 239.1.1.1 is the customer multicast group address.

C. 239.1.1.1 is the I-PMSI group address.

D. 239.1.1.1 is the 5-PMSI group address.



QUESTION 109Which of the following actions is not performed by a bud node along a RSVP-TE P2MP LSP?


A. Label push operation

B. Label swap operation

C. Packet replication

D. Label pop operation



QUESTION 110Which of the following is the BGP NLRI used for BGP Auto-Discovery in a MVPN?

A. MP_REACH_NLRI

B. MP_UNREACH_NLRI

C. MCAST-VPN NLRI

D. PMSINLRI



QUESTION 111Which of the following describes how customer multicast routing information is distributed in NG MVPN?

A. Customer multicast routing information is distributed only with PIM.

B. Customer multicast routing information is distributed only with MP-BGP.

C. Customer multicast routing information is distributed with either PIM or MP-BGP.

D. Customer multicast routing information is distributed with either mLDP or RSVP-TE.





According to the output shown, which of the following statements is FALSE?

A. The S-PMSI is instantiated by GRE tunnels.

B. The I-PMSI group address is 232.10.10.0.

C. 192.168.1.2 is the IP address of the multicast source.

D. The customer is sending multicast traffic to group 239.1.1.1.




QUESTION 113The customer multicast network is running PIM SSM. The MVPN is using BGP A-D to distribute C-multicast routes. Which BGP route does a PE send to the corewhen it receives a PIM (S,G) Join from its CE?

A. S-PMSI A-D route

B. Source Active A-D route

C. Shared Tree Join A-D route

D. Source Tree Join A-D route



QUESTION 114Which of the following is NOT an advantage of using P2MP LSP as P-tunnels that instantiate PMSIs?

A. P-tunnels can be protected with fast reroute for better resiliency.

B. PIM is no longer required in the provider core.

C. P2MP LSP tunnels forward multicast traffic only to the PEs with interested receivers.

D. Traffic engineering of the P-tunnels is possible with P2MP LSPs.




QUESTION 115In an MVPN that uses BGP Auto Discovery for both I-PMSI and S-PMSI, what action is taken by the ingress when customer multicast traffic drops below thethreshold?


A. The ingress PE sends a MP_REACH_NLRI message to activate the Intra-AS I-PMSI A-D route.

B. The ingress PE sends a MPJJNREACH_NLRI message to withdraw the S-PMSI A-D route.

C. The ingress PE stops sending the S-PMSI A-D route.

D. The ingress PE stops sending the Source Active A-D route.



QUESTION 116Which of the following about the signaling of multicast group information in an MVPN service is TRUE when MPLS P2MP tunnels are used?

A. BGP Auto-Discovery is used for the signaling of the PMSIs, while either mLDP or RSVP-TE P2MP is used for the signaling of customer multicast groupmembership.

B. Either BGP Auto-Discovery or PIM is used for the signaling of the PMSIs, while either mLDP or RSVP-TE P2MP is used for the signaling of customer multicastgroup membership.

C. BGP Auto-Discovery is used for the signaling of the PMSIs, as well as for the signaling of customer multicast group membership.

D. BGP Auto-Discovery is used for the signaling of the PMSIs, while either BGP Auto-Discovery or PIM is used for the signaling of customer multicast groupmembership.




QUESTION 117Which of the following is NOT a characteristic of multicast?

A. Multicast relies on an existing IP routing infrastructure.

B. Multicast traffic may follow a different path than unicast traffic between the same two points.

C. A distinct multicast topology can be created instead of using the unicast topology.

D. When PIM is used, the unicast routing topology has no impact on the multicast topology.



QUESTION 118Which of the following about data delivery is FALSE?

A. For multicast delivery, the source sends a single copy of each packet regardless of the number of receivers.

B. For unicast delivery, the source sends a single copy of each packet regardless of the number of receivers.

C. For broadcast delivery, the source sends a single copy of each packet regardless of the number of receivers.

D. For anycast delivery, the source sends a single copy of each packet regardless of the number of receivers.



QUESTION 119Which entity periodically sends IGMP Host Membership Queries?

A. The router elected as Querier on a LAN.

B. The first host to expire its local suppression timer.

C. Only the multicast-enabled hosts on a LAN.

D. All routers on a LAN.


E. All multicast-enabled routers on a LAN.



QUESTION 120When forwarding a multicast frame, normal behavior for a LAN switch (with IGMP snooping enabled) is to forward the frame as if it were:

A. A unicast frame with a known destination in the forwarding table.

B. A unicast frame with an unknown destination in the forwarding table.

C. A unicast frame with a known source in the forwarding table,

D. A unicast frame with an unknown source in the forwarding table.



QUESTION 121After the switchover from Shared Path Tree to Source Path Tree, does a branch of the Shared Path Tree still exist between the diverging router (router where theShared and Source Path Tree diverge) and the RP?

A. Yes, it exists until the source stops sending multicast traffic.

B. Yes, it exists until there is no receiver beyond the diverging router.

C. No. After switchover, only the Source Path Tree remains.

D. No. After switchover, only the Shared Path Tree remains between the source and RP.




QUESTION 122What are the first two actions a router performs after PIM is enabled?

A. BSR election followed by DR election.

B. DR election followed by PIM Hello messages.

C. DR election followed by BSR election.

D. BSR election followed by PIM Hello messages.

E. PIM Hello messages followed by BSR election.

F. PIM Hello messages followed by DR election.

Correct Answer: FSection: Volume CExplanation


QUESTION 123What is the first action a router performs when it receives a multicast packet?

A. It determines if it is the DR for that segment.

B. It checks the PIM source group database for the matching group.

C. It sends a PIM Assert message to the RP.

D. It performs an RPF check on the packet.

E. It sends an IGMP join to the source.



QUESTION 124Which of the following is NOT a benefit of anycast RP?

A. It provides RP redundancy in a PIM SM network.


B. It provides load balancing between multiple RPs in the network,

C. It supports a different multicast topology than the unicast topology.

D. It supports more optimal routing of the Shared Path Tree by allowing redundant RPs to be located closer to receivers.



QUESTION 125Which of the following best describes the impact of an RP failure in a PIM ASM network?

A. All existing multicast traffic is stopped immediately, as the PIM ASM network must have an RP to transmit the multicast traffic.

B. The multicast traffic will be impacted, but not immediately, as multicast routers will not discover the RP failure until the keep alive timer expires.

C. No impact at all, as an RP is not required in a PIM ASM network.

D. The traffic is not impacted if the multicast traffic flows have already been established, and the traffic flow does not involve the RP in the path.





Which router is the RP for group 239.1.34.92?

A. 10.10.10.24.

B. 10.10.10.66.

C. It depends on the setting of the override parameter.

D. Neither, since the overlapping address range presents a conflict.





What happens when Host 2 issues an IGMP report to join a group?

A. Both Router A and Router B get this IGMP report; Router B propagates a PIM join toward the core network.

B. Both Router A and Router B get this IGMP report, and both propagate a PIM join toward the core network.

C. Only Router A gets this IGMP report and propagates a PIM join toward the core network.

D. Only Router A gets this IGMP report, but no further action is taken, as Router A is not the PIM DR.



QUESTION 128Which of the following about MLD snooping is FALSE?

A. MLD snooping enables switches to forward multicast data to specific hosts interested in the group.

B. MLD snooping can co-exist with IGMP snooping in the same VPLS service.


C. Once MLD snooping is enabled, the switch can snoop both MLDv1 and MLDv2 messages.

D. MLD snooping snoops MLD report and done messages, but not query messages.

Correct Answer: DSection: Volume DExplanation



Assume that I-PMSI uses PIM ASM and the I-PMSI group address is G. How many MM (S,G) entries are on PE1?

A. Only one, and S is PE1.

B. Only one, and S is MC source server's IP address.

C. Only one, and S is P (RP).

D. Three, and S is PE1, PE2 and PE3 respectively.


Correct Answer: ASection: Volume DExplanation


QUESTION 130Which operation is performed by an interested PE upon receiving an MDT Join TLV?

A. The PE sends an (S, G) PIM Join with GRE encapsulation.

B. The PE sends an (S, G) PIM Join with no encapsulation.

C. The PE sends a (*, G) PIM Join with GRE encapsulation.

D. The PE sends a (*, G) PIM Join with no encapsulation.

Correct Answer: BSection: Volume DExplanation


QUESTION 131In Draft Rosen, a PE router encapsulates customer multicast packets into provider packets. What source IP address is used for the provider packets?

A. The system IP address of the originating PE router.

B. The source IP address of the customer packet.

C. The outgoing interface IP address of the originating PE router.

D. The source IP address specified in the MVPN configuration.



QUESTION 132


Click the exhibit.

Based on the output shown, which of the following is correct?

A. The I-PMSI group address is 239.1.1.10.

B. The S-PMSI group address is 239.1.1.10.

C. This PE has no receiver.

D. The system IP address of this PE is 10.10.10.1.

Correct Answer: CSection: Volume DExplanation


QUESTION 133What is the advantage of using the S-PMSI over the I-PMSI in Draft Rosen?


A. The S-PMSI reduces control plane overhead because the I-PMSI is no longer needed.

B. The S-PMSI only forwards customer multicast traffic to PEs that have interested receivers.

C. The S-PMSI is required because it is the initial multicast distribution tree for the MVPN.


D. The S-PMSI encapsulates customer multicast traffic in an MPLS tunnel, which is more efficient than the GRE tunnel used by the I-PMSI.



QUESTION 134Which of the following is NOT a characteristic of Draft Rosen?

A. PIM in the VRF.

B. PIM in the service provider's core network.

C. GRE encapsulation for multicast data traffic.

D. MPLS encapsulation for multicast data traffic.



QUESTION 135The Draft-Rosen S-PMSI address range is configured for 32 group addresses. What happens if there are more than 32 customer multicast flows that exceed thethreshold configured for the MVPN?

A. Traffic for the 33rd multicast flow is dropped.

B. Traffic for the 33rd multicast flow is transmitted on the I-PMSI.

C. The source PE reassigns the S-PMSI with the smallest flow to the new multicast flow. Traffic for the smaller flow is transmitted on the I-PMSI.

D. The source PE re-uses an S-PMSI that is currently in use for the 33rd flow. Traffic for both flows is sent on the same S-PMSI.




QUESTION 136In Draft Rosen, how does the PE process a PIM Join message received from its CE?

A. The PE maps the customer group address to a group address in the configured range and sends a PIM Join for that group to the RP in the provider core.

B. The PE propagates the PIM Join message to the RP in the provider core.

C. The PE encapsulates the PIM Join message in GRE and sends it to other PEs via I-PMSI.

D. The PE encapsulates the PIM Join message in GRE and sends it to other PEs via S-PMSI.



QUESTION 137Which of the following describes a purpose of MP-BGP as used in NG MVPN?

A. Building GRE tunnels to carry multicast traffic.

B. Building MPLS tunnels to carry multicast traffic.

C. Allowing a PE to discover the other PE routers in an MVPN.

D. Exchanging multicast routing information between CE routers.



QUESTION 138Which of the following best describes the PMSI (provider multicast service interface) in an MVPN service?

A. The PMSI is the interface between the PEs and CEs in an MVPN service.

B. The PMSI is an overlay broadcast network that interconnects all PEs in an MVPN service.

C. The PMSI is the PIM-enabled interface between the PEs in an MVPN service.

D. The PMSI is the GRE tunnel that carries customer multicast traffic across the service provider core network.




QUESTION 139Which of the following fields is used in the PATH message to uniquely identify an S2L Sub-LSP?

A. P2MPID

B. Tunnel ID

C. Extended Tunnel ID

D. Sub-Group ID



QUESTION 140How many types of Auto-Discovery routes are defined for MCAST-VPN NLRI?

A. 3

B. 5

C. 7

D. 9



QUESTION 141Which of the following regarding the use of RSVP-TE P2MP LSP as MVPN I-PMSI is TRUE?


A. If RSVP-TE P2MP LSP is used as I-PMSI, either mLDP or RSVP-TE P2MP LSP can be used as S-PMSI.

B. The signaling protocol used for S-PMSI is independent of that used for I-PMSI.

C. If the signaling protocol used for I-PMSI is RSVP-TE, BGP must be used for signaling customer multicast information.

D. The protocol used for signaling customer multicast information is independent of that used for the I-PMSI.



QUESTION 142Which of the following about the use of BGP A-D in a MVPN service is TRUE?

A. If the I-PMSI is signaled by BGP A-D, then the S-PMSI must be signaled by BGP A-D.

B. If the I-PMSI is signaled by PIM, then the S-PMSI must be signaled by BGP A-D.

C. Customer group membership must be signaled by BGP A-D.

D. Customer group membership must be signaled by BGP A-D or PIM.



QUESTION 143Which of the following about the S-PMSI A-D route is FALSE?

A. It is sent by the ingress PE when the configured threshold is exceeded.

B. It eliminates the periodic MDT Join.

C. It eliminates the periodic PIM Hello.

D. It signals the multicast group address for the S-PMSI.

Correct Answer: CSection: Volume D


Explanation


QUESTION 144Which of the following describes UMH (Upstream Multicast Hop) selection?

A. It is the process of finding the remote PE connected to the C-root of the multicast tree.

B. It is the process of finding the remote CE connected to the C-root of the multicast tree.

C. It is the RPF check for the multicast traffic received from remote PEs in the MVPN.

D. It is the RPF check for the multicast traffic received from local CEs in the MVPN.





Based on the display, which of the following regarding MVPN 100 is TRUE?

A. BGP is used to signal customer multicast routing information, while PIM is used to discover PEs.

B. PIM is used to signal customer multicast routing information, while BGP is used to discover PEs.

C. BGP is used to signal customer multicast routing information and discover PEs.

D. PIM is used to signal customer multicast routing information and discover PEs.



QUESTION 146Which of the following services is provided by the use of PIM as a multicast routing protocol?


A. Authentication

B. Guaranteed delivery

C. Device security

D. Prevention of forwarding loops

E. Prevention of Denial of Service attacks



QUESTION 147What is the default version of IGMP on the Alcatel-Lucent 7750 SR?

A. Version 1

B. Version 2

C. Version 3

D. There is no default setting, you must configure the version when you enable IGMP on 7750 SR



QUESTION 148How often does a host issue IGMP Host Membership Reports for group 224.0.0.1?

A. Never

B. Every 30 seconds

C. Every 60 seconds

D. Every 120 seconds

E. Every 260 seconds

F. Whenever it receives a query




QUESTION 149Which of the following regarding the Shared Path Tree is TRUE?

A. The multicast source is the root of the tree.

B. It is represented by an (S, G) entry.

C. It is the initial forwarding path in ASM mode.

D. It is created as a result of switchover.




alcatel-lucent.test-king.4a0-108.v2018-06-27.by.andrew · 2018. 6. 27. · 4a0-108.exam.149q number...

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