1 For outgoing MPLS packets, which label is used by the MPLS router? A. label assigned by the CE at destination B. label assigned locally by the router C. label assigned by the direct neighbor D. label assigned by the originating CE

2. Which three techniques allow for the co-existence of IPv4 and IPv6 networks? (Choose three.)

A. tunneling B. anycasting C. translation D. encoding E. dual-stacking

3 Which three would be used to setup a MPLS-TP LSP? (Choose three.)

A. RSVP-TE B. GMPLS C. OSPF D. NMS E. LDP

4 Which two statements are true about MPLS encapsulation in relation to other protocols? (Choose two.)

A. MPLS encapsulates IP packets. B. UDP encapsulates MPLS packets. C. TCP encapsulates MPLS packets. D. Ethernet encapsulates MPLS packets.

5. What is the proper sequence of actions applied to a packet entering a DiffServ domain?

A. classification, marking, queuing, scheduling B. classification, queuing, marking, scheduling C. classification, scheduling, marking, queuing D. classification, queuing, scheduling, marking

6.Which protocol would you enable in an Ethernet network to avoid loops?

A. IEEE 802.1q B. Spanning Tree Protocol C. IGP routing protocol D. IEEE 802.1x

7. IPv6 addresses can be classified into which three categories? (Choose three.) A. anycast B. broadcast C. multicast D. hexcast E.unicast

8. Which three ranges are used as private IP addresses? (Choose three.) A. 10.0.0.0 to 10.255.255.255 B. 10.0.0.0 to 11.255.255.254 C. 172.16.0.0 to 172.31.255.255 D. 172.16.0.0 to 172.32.0.0 E. 192.168.0.0 to 192.168.255.255 9. Which three techniques allow for the co-existence of IPv4 and IPv6 networks? (Choose three.) A. tunneling B. anycasting C. translation D. encoding E. dual-stacking 10. What is the decimal representation of the subnet mask /26? A. 255.255.255.128 B. 255.255.255.192 C. 255.255.255.240 D. 255.255.255.255

11. What is the purpose of port numbers at the TCP/IP transport layer? A. to identify the incoming and outgoing Ethernet ports used to carry data B. to identify which IP protocol version is being used to carry data C. to identify the incoming and outgoing ATM ports used to carry data D. to identify the application layer protocol used to handle the data 12. You are provided a /28 network. You are not allowed to use the network and broadcast addresses for hosts. How many valid IP addresses are available for the hosts? A. 14 B.15 C. 16 D. 240

13. You have been asked to sell a VoIP solution to a customer. They have requested more information from you regarding traffic requirements. Which statement is correct? A. MPLS is mandatory for all VoIP calls. B. VoIP protocol guarantees 100 percent packet delivery. C. IPSec is mandatory for all VoIP calls. D. UDP is used to carry the VoIP traffic.

14. What are two advantages of using NAT in a network? (Choose two.) A.to provide encryption for all IP traffic B. to efficiently compress the IP packet C. to hide private IP addresses from the Internet D. to reduce the use of public IP addresses in a network

15. Which three statements describe the purpose for using DHCP? (Choose three.) A. It obtains the IP address of a default gateway. B. It obtains the MAC address of an Ethernet switch. C. It obtains the subnet mask used for an IP address. D. It obtains the IP address of a DNS server. E. It obtains the IP address of an Ethernet switch

16. Which address range is used for IPv4 multicast addressing? A. 224.0.0.0 to 239.255.255.255 B. 227.0.0.0 to 239.255.255.255 C. 255.255.255.0 to 255.255.255.255 D. 192.168.0.0 to 223.255.255.255

17. You need to manage a network using IP address 192.168.1.0 with subnet mask 255.255.255.0. What is the maximum number of IP addresses in this network? A. 128 B. 253 C. 254 D. 256

18. Which protocol is used to test the reach ability of a host in another IP network? A. ICMP B. ARP C. DHCP D. DNS

19. What is the purpose of link-local IPv6 addresses? A. to provide multicast IPv6 addresses for use on a single link B. to provide unicast IPv6 addresses for use on a single link C. to provide anycast IPv6 addresses for use on a single link D. to provide broadcast IPv6 addresses for use on a single link

20. What does TCP use to set up a connection? A. two-way handshake B. sliding window C. three-way handshake D. four-way handshake

21. As a network support engineer, you are having difficulty accessing for your mobile switching node using the Web browser GUI. You are told that the node requires a remote restart. Which protocol would you use as an alternative to access the node to perform this action?

A. FTP B. Secure FTP C. RADIUS D. Telnet

22 What are two purposes for encoding multicast IP addresses into a special MAC address? (Choose two.) A. to allow multicast aware switches to optimize bandwidth B. to allow multiple hosts to receive the same Ethernet frame C. to allow multicast aware switches to transcode multicast into unicast D. to allow multicast aware switches to transcode multicast into anycast

23. Which protocol assigns IPv6 link local interface addresses? A. ICMPv6 B. DHCPv6 C. DNS D. ND 24. You receive a call from your manager about a network problem. Your manager cannot reach remote servers. You need to confirm the link status between the office and the service provider. Which protocol would you use to identify the problem? A. ICMP B. DNS C. DHCP D. SMTP 25. Before sending any MPLS traffic, what must happen in a network using LDP? A. label signaling B. MAC signaling C. fast rerouting D. tag swapping 26. Which two statements are true about MPLS-TP? (Choose two.) A. MPLS-TP is a new standard developed to replace the existing MPLS standard. B. MPLS-TP significantly extends MPLS OAM capabilities. C. MPLS-TP is a newer version of T-MPLS. D. MPLS-TP supports both dynic and static LSP provisioning

27. What is an LER? A. a P router B. a PE router C. a CE router D. a DE router

28. Which three would be used to setup a MPLS-TP LSP? (Choose three.) A. RSVP-TE B. GMPLS C. OSPF D. NMS E. LDP 29. A packet has arrived at the ingress LER. Which action is performed? A. pop B. push C. LSP D. swap

30. For outgoing MPLS packets, which label is used by the MPLS router? A. label assigned by the CE at destination B. label assigned locally by the router C. label assigned by the direct neighbor D. label assigned by the originating CE 31. Which two statements are true about MPLS encapsulation in relation to other protocols? (Choose two.) A. MPLS encapsulates IP packets. B. UDP encapsulates MPLS packets. C. TCP encapsulates MPLS packets. D.Ethernet encapsulates MPLS packets. 32 Which MPLS router is at the boundary in a MPLS network? A. LSR B. LER C. CE D. ABR 33. You are designing QoS for an IP/MPLS network. You want to propagate QoS values between IP and MPLS headers on a MPLS LER. What is the maximum number of QoS classes of service that you would be able to define for this network? A. 4 B. 8 C. 64 D. 256

34 Which class of service has the highest priority according to the DiffServ model? A.DF B. AF43 C. EF D. AF41 35. What sets the DSCP value in a packet? A. classification B. marking C. shaping D. policing 36. What happens with packets on a port configured for WFQ when traffic exceeds port capacity? A. Packets are dropped. B. Packets are stored in memory. C. Packets are sent over an alternate link. D. Packets are remarked.

37. An edge router forwards a mixture of VoIP and IPTV traffic over the se port. Which two QoS scheduling algorithms would you use to assure good VoIP call quality when the port is congested? (Choose two.) A. PQ B. WFQ C. PWFQ D. WRED 38. Which two statements are correct regarding QoS in an IP network using DiffServ? (Choose two.) A. High priority traffic can be dropped by any router in the network. B. Packets belonging to the se QoS class always traverse the se path regardless of IGP topology change. C. Routers reserve required bandwidth before they start forwarding packets for a given class. D. QoS procedures applied to a given traffic class are the se for all routers within the DiffServ domain

39. Which routing protocol uses the SPF algorithm? A. BGP B. RIPv1 C. IS-IS D. RIPv2

40. What is a characteristic of distance vector protocols? A. Distance vector protocols send the entire routing table to directly connected neighbors. B. Distance vector protocols send a partial routing table to directly connected neighbors. C. Distance vector protocols send a partial routing table to indirectly connected neighbors. D. Distance vector protocols send the entire routing table to indirectly connected neighbors 41. Which statement is true about administrative distance? A. The administrative distance for all OSPF routes is the se. B. The administrative distance is measured by the routing protocol. C. The administrative distance depends on the hop count. D. The administrative distance for static routes depends on the next hop

42. What is a collection of connected IP routing prefixes, under the control of one operator, that presents a common, clearly defined, routing policy to the Internet? A. broadcast domain B. Autonomous System C. OSPF area 0 D. IS-IS level 1

43. Which two statements are correct regarding distance vector routing protocols? (Choose two.) A. Periodically sends the full routing table to its neighbors. B. Maintains a network topology view. C. Uses hop count as a metric. D. Uses cost as a metric

44. Why must the distance between two IP networks be less than 16 routers when using RIP as a routing protocol? A. RIP is a classful routing protocol. B. RIP converges too slowly. C. RIP uses a metric of 16 as infinite. D. RIP uses 16 seconds as a hold timer

45. An operator wants to ensure that their IP traffic between two sites has a fast dynic failover mechanism in case of path failure. Which protocol should they use? A. VPN B. RIP C. IPSec D. OSPF 46. You are operating a network of 50 routers with 1000 routes. You want the routers to trigger routing updates when the network changes. Which routing protocol will you use? A. RIP B. eBGP C. OSPF D. static 47. Which two statements are correct about link-state routing protocols? (Choose two.) A. Packets are routed based upon the shortest path to the destination. B. Paths are chosen based upon the number of hops to the destination. C. The exchange of advertisement is triggered by a change in the network. D. In a multipoint network, all routers exchange routing tables directly with all the routers

48. Computer A with IP address 192.168.1.1/24 wants to send a packet to computer B with IP address 192.168.2.1/24. Which statement is correct? A. Computer A will send an ARP request to computer B. B. Computer A will encode the destination MAC address of computer B. C. Computer A will use its default gateway. D. Computer A will send a network discovery request to computer B.

49. What is the purpose of a loopback interface? A. to send traffic back to the originator B. to have an "always up" interface C. to send traffic based on the source address D. to obtain an address in the network 127.0.0.0/8

50. You are reviewing the routing table of a router. The se network is advertised by RIP and OSPF. Why is it preferred to use the next hop provided by OSPF? A. OSPF has a faster convergence time. B. RIP has a lower metric value. C. OSPF is using TCP. D. OSPF has a lower administrative distance

51. Which two statements are true about OSPF? (Choose two.) A. OSPF routers exchange routes between autonomous systems. B. OSPF routers cannot exchange routes between autonomous systems. C. OSPF areas are optional. D. OSPF areas must contain only one IP prefix.

52. Which encapsulation would you enable on a link between two Ethernet switches to ensure proper VLAN handling? A. PPP B. IEEE 802.1q C. fre-relay D. SAToP

53. Referring to the exhibit, which device can fragment IPv6 packets?

Exhibit List (Click to View) Exhibit

A. source host B. destination host C. router D. firewall

54. In the exhibit, which action is performed by router R4?Exhibit List (Click to View)

Exhibit A. pop B. swap C. PHP D. push

55. You are designing QoS for an IP/MPLS network. You want to propagate QoS values between IP and MPLS headers on a MPLS LER.

What is the maximum number of QoS classes of service that you would be able to define for this network? A. 4 B. 8 C. 64 D. 256

56. Which two statements are correct regarding distance vector routing protocols? (Choose two.)

A. Periodically sends the full routing table to its neighbors. B. Maintains a network topology view. C. Uses hop count as a metric. D. Uses cost as a metric.

57. Which routing protocol uses the SPF algorithm?

A. BGP B. RIPv1 C. IS-IS D. RIPv2

58. Which two statements about Layer 2 switches are true? (Choose two.)

A. They process the destination IP addresses of fres they receive. B. They process the source MAC addresses of fres they receive. C. They process the destination MAC addresses of fres they receive. D. They make forwarding decisions based on the source MAC addresses.

59. Which technique would you use to increase the maximum number of available broadcast domains within a single Layer 2 domain?

A. jumbo fres B. switch stacking C. VLAN stacking D. p-bit marking

60. Which two statements are true about Ethernet VLANs? (Choose two.)

A. VLANs divide an Ethernet network to multiple broadcast domains.

B. VLANs can exist only within one Ethernet switch. C. VLANs can be spread across many Ethernet switches. D. VLANs must use different IP addresses.

61. Which protocol would you enable in an Ethernet network to avoid loops?

A. IEEE 802.1q B. Spanning Tree Protocol C. IGP routing protocol D. IEEE 802.1x

62. What is the expected behavior of an Ethernet switch when it receives an Ethernet fre with an unknown destination MAC address?

A. The switch should discard the fre. B. The switch should send an ARP update request for the missing MAC address. C. The switch should send a FIB update request for the missing MAC address. D. The switch should forward the fre to all remaining ports.

63. Which Layer 2 protocol is used to maintain a loop-free topology?

A. VTP B. STP C. RIP D. CDP

64. Which two statements are true about Link Aggregation Control Protocol? (Choose two.)

A. All links must operate at the se speed. B. Links can operate at different speeds. C. All links must operate in full duplex mode. D. 802.1q encapsulation cannot be enabled on all links

65. How many collision domains exist on a 24-port Ethernet switch with 12 VLANs?

A.12 B. 24 C. 36 D. 288 Collision Domain :No of PortsBroadcast Domain: No of VLANs

66 )What are two characteristics of a MPLS-TP data plane? (Choose two.)

A. MPLS-TP enabled devices do not need to support IP forwarding.

B. It uses MAC-in-MAC.

C. LSP must guarantee fixed packet delay.

D. Packet forwarding is compatible with IP/MPLS.

67. Which two actions are applicable to packets arriving at a port configured for rate limiting? (Choose two.)

A. drop

B. queue

C. mark

D. expedite

68. Which two statements are correct regarding QoS in an IP network using DiffServ? (Choose two.)

A. High priority traffic can be dropped by any router in the network.

B. Packets belonging to the se QoS class always traverse the se path regardless of IGP topology change.

C. Routers reserve required bandwidth before they start forwarding packets for a given class.

D. QoS procedures applied to a given traffic class are the send for all routers within the DiffServ domain.

69. What is a collection of connected IP routing prefixes, under the control of one operator, that presents a common, clearly defined, routing policy to the Internet?

A. broadcast domain

B. Autonomous System

C. OSPF area 0

D. IS-IS level 1

70 Which two statements about BGP routing are true? (Choose two.)

A. BGP is a link state protocol.

B. eBGP speakers exchange routes with other eBGP speakers.

C. BGP uses hop count as a metric.

D. BGP is an exterior gateway protocol.

71. Which two statements are correct about link-state routing protocols? (Choose two.)

A. Packets are routed based upon the shortest path to the destination.

B. Paths are chosen based upon the number of hops to the destination.

C. The exchange of advertisement is triggered by a change in the network.

D. In a multipoint network, all routers exchange routing tables directly with all the routers.

72. How many collision domains exist on a 24-port Ethernet switch with 12 VLANs?

A. 12

B. 24

C. 36

D. 288

73. Which statement is correct when describing the purpose of VLAN tags?

A. They provide traffic encryption in a LAN.

B. They represent different collision domains.

C. They represent different physical paths in a LAN.

D. They represent different broadcast domains

74. You have configured multiple VLANs in your Ethernet network. There is a requirement to transport the VLANs' traffic over a single link.

Which technique should be used?

A. VLAN tagging

B. VLAN spanning

C. VLAN prioritization

D. VLAN switching

75. Which protocol admin overhead in a switch network by allowing the configuring of a new

VLAN to be distributed to all the switches in a domain?

A. STP

B. VTP(VLAN Trunking protocol)

C. GVRP

D. SNMP

E. DHCP

76. what are the types of transiton mechanism used for co-exist of IPV6 and IPV4 ? ( choose three)

a)Dual stack.

b)Tunneling.

c)Translation.

d.

77. Inserting the label at Ingress router is called a) POP.

B )push.

c)swap.

d) PHP.

78. Four Routers are shown and LER1(ingress), LSR, LSR and LER2(egress),

Then asked what action is done by the LER1 router

Almost same question repeated above--- Answer is Push

79. one Question on Priority Queuing—

ans: Answer is Lower Priority Queue Starve of Bandwidth

80 You have AS100 and As200, what Protocol runs between them

a) OSPF.

b) IBGP.

c) BGP .

d) IS-IS.

81. Which of the following represents the correct one for IPV6 address

Take care of Double Colons and zeroes( there should be only one double colon, and leading zeroes omitted in each octet.

82) Select the Subnet mask for the following address?- 192.168.10.1/26

Answer- 255.255.255.192

83) What is the protocol used for label distribution

A) LSP.

b) STP.

c) LDP.

d) SFP.

84) What is the method use to avoid loop

a) Fail one switch.

b) Block the secondary port.

c) Run Error recovery.

85. Protocol used in BGP.

a) UDP.

B) IGP.

C) TCP.

D) OSPF

86)what mechanism used by TCP for Session starting/ ending….

a)3way handshake.

b) 4way handshake.

c) Sliding window.

d) padding.

If its for TCp session starting—Its 3 way handshake

If its for TCP session ending—Its 4way handshake

If its TCP session acknowledge or something else its sliding window

87 ) How Ips available in /28 network if one ip is used for broad cast and and another for gateway.

a)16,.

b) 15.

c)14.

d)254.

NOTE: Please be careful about the question, if they ask How many Ips available then answer

is 16, and if they ask how many can be assigned to host, then answer is 14.

88) In which part fragment of IPV6 packets done ?

a) Source host.

b) destination host.

c) firewall.

d) Router

89) Which are the protocols used in both IPV4 and IPV6(Choose 2)

a) ARP.

b)DNS.

c)DHCP.

90) The router considers the routing information given by OSPF than to RIP, why is it so?(Question is

not same, but similar, answer is Lower Adminstrative value)

a.)OSPF has lower administrative distance than RIP.

b.)OSPF has higher administrative distance than RIP

c.)OSPF has more weight than RIP

d.)OSPF has lower weight than RIP.

91) which routing protocol sends all routing info to other routers without ageing!

a)RIP.

b)OSPF.

c) IS-IS.

d)BGP.

92). In 24 port Ethernet switch with 12 VLAN , calculate no of collision domains

a) 24b) 36c) 12d) 1

93.) you are integrating network node, all events happening in the network node to be report to

network operation . which protocol grants access?(Similar question of managing the files)

a) SMTP

b) SNMP.

c) FTP

d) firewall

94)What is the function of DHCP?(Multiple answers correct)

a.)To get valid IP address .

b.)To get ip address of the default gateway.

c.)To get the ip address of DNS server .

d.)To decide which routing protocol to use.

95) You want to access a network management file on a server, which protocol will allow you to access the file, penetrating the firewall through server?

a.)SCTP

b.)SNMP

c.)RADIUS

d.)FTP.

96) Which of the following operations are done by the host before sending any packet?(Multiple correct)

a.)ANDING the source IP address with the subnet mask.

a.)ANDING the destination IP address with the subnet mask .

a.)ANDING the source IP address with the destination IP address.

a.)ANDING the destination IP address with the default gateway address.

97) . You want to implement QoS in your network. Your network is running on IP/MPLS backbone.How many types of QoS can you define in your network?

a.)4

b.)8

c.)32

d.)64

98) . A separate traffic class has been created for Voip. How can you make sure that a user doesnot use multiple voip sessions?

a.)Rate limiting

b.)Using WFQ

c.)Using WPFQ

d.)Using RED.

99) . What does the P in the 802.1q VLAN tag used for?

a.)For not fragmenting the Ethernet frames.

b.)For prioritization of certain VLANs.

c.)To indicate the format of MAC address format

d.)To implement stacking of VLANs

100) Different VLANs in a network represents which of the following?(Multiple correct)

a.)Different Collision Domains

b.)Different Broadcast Domains

c.)Same Collision Domains

d.)Same Broadcast Domains.

101) . A layer 2 switch receives an unknown Ethernet frame, what will it do??

a) Drop the packet

b) Forward to all ports.

c) Send ARP request to all

d) Send back to same port

102) You are the representative of ur company and you are required to address the customer regarding the QOS in their n/w. Which one of the following will you suggest?

a) MPLS-TP is mandatoryb) UDP is required for QOSc) DiffSrv is required .d) TCP is required

103) what is the range of class C address?

191-224

192-223.

180-213

185-215

104) In a single administration, contains a collection of numbers of areas grouping attached hosts and routers under the same routing policy. What is that area called

Diffserv domain

Backbone area

Autonomous System.

Broadcast Domain

105) When a packet arrive in a rate limiting QoS? (Choose Two)

Buffer Queue Mark Expedited

106) One MPLS network diagram shown, And CE shown outside the MPLS network and P, PE, and LER2 shown and Question asked is Which Router adds lables to unlabelled packet?

a) CEb) PE(ingress)c) Pd) LER2(egress)

e)

107) Main blocks of Diffserv(Chose two)

1.DSCP--Answer2.PHP3.PHB-Answer4….

108. What is LSP?—It’s a complete path in MPLS.

109. You have been asked to ensure that files from your network management system can be transferred onto any host computer connected to the company network.

Which protocol requires permit access on your firewall for this operation to take place?

A. SNMP

B. Telnet

C. RADIUS

D. FTP

110. Which three statements describe the purpose for using DHCP? (Choose three.)

A. It obtains the IP address of a default gateway.

B. It obtains the MAC address of an Ethernet switch.

C. It obtains the subnet mask used for an IP address.

D. It obtains the IP address of a DNS server.

E. It obtains the IP address of an Ethernet switch.

111. Which two protocols apply to both IPv4 and IPv6? (Choose two.)

A. DNS

B. SNMP

C. ND

D. ARP

112. You are designing an IPTV service. You want to conserve bandwidth in your network.

What would you use?

A. broadcast

B. multicast

C. unicast

D. anycast

113. Which mechanism is used in the TCP protocol to avoid congestion in a data transfer?

A. three-way handshake

B. multihoming

C. sliding window

D. four-way handshake

114. You are integrating a new node into your network and you want to ensure that all events occurring on the node are reported back to the network operations center.

Which protocol requires permit access on your firewall for this operation to take place?

A. Secure FTP

B. SMTP

C. SNMP

D. FTP

115. What are two purposes for encoding multicast IP addresses into a special MAC address? (Choose two.)

A. to allow multicast aware switches to optimize bandwidth

B. to allow multiple hosts to receive the same Ethernet frame

C. to allow multicast aware switches to transcode multicast into unicast

D. to allow multicast aware switches to transcode multicast into anycast

116. What are two characteristics of a MPLS-TP data plane? (Choose two.)

A. MPLS-TP enabled devices do not need to support IP forwarding.

B. It uses MAC-in-MAC.

C. LSP must guarantee fixed packet delay.

D. Packet forwarding is compatible with IP/MPLS.

117. Which protocol signals the MPLS labels?

A. STP

B. LSR

C. LDP

D. OSPF

118. A router inserts a MPLS label in front of the unlabelled packet and forwards the packet to the next hop.

What is this action called?

A. PHP

B. swap

C. pop

D. push

119. Your network is overloaded with unwanted peer-to-peer traffic.

Which traffic class would you use to mark this traffic?

A. default PHB

B. EF

C. CS3

D. AF12 (not sure)

120. Which QoS mechanism would you use to prevent a user from using more than one VoIP session at the time?

A. Weighted Random Early Detect

B. Weighted Fair Queuing

C. Traffic Shaping

D. Rate Limiting

121. Which two will you use in your design? (Choose two.)

A. DSCP

B. PHB

C. PHP

D. DVMRP

122. Which two actions are applicable to packets arriving at a port configured for rate limiting? (Choose two.)

A. drop

B. queue

C. mark

D. expedite

123.You are operating AS100 and would like to exchange dynamic routing information with AS200.

Which routing protocol will you use?

A. iBGP

B. IS-IS

C. IGP

D eBGP

124. You are examining a routing table that contains static, RIP, OSPF and eBGP routes for the same destination network with each set to its default administrative distance.

Which route will be used to forward data?

A. OSPF route

B. static route

C. RIP route

D. eBGP route

125. When would a router use a default route?

A When a packet's destination network does not match with any other routes.

B. When a packet's destination network does not match with any dynamic routes.

C. When a packet's destination network does not match with the default gateway.

D. When a packet's destination network does not match with the loopback interface.

126. You are reviewing the routing table of a router. The same network is advertised by RIP and OSPF.

Why is it preferred to use the next hop provided by OSPF?

A. OSPF has a faster convergence time.

B. RIP has a lower metric value.

C. OSPF is using TCP.

D. OSPF has a lower administrative distance.

127. Which transport layer protocol is used by BGP?

A. UDP

B. TCP

C. ICMP

D. IGP

128 Which encapsulation would you enable on a link between two Ethernet switches to ensure proper VLAN handling?

A. PPP

B. IEEE 802.1q

C. frame-relay

D. SAToP