ccna2 quiz 2

CCNA2 Quiz 2

1. Which is a difference between RIP version 1 and RIP version 2?A. The routing metricB. The routing algorithmC. Support for authenticationD. Support for hierarchical networks

2. Which of these is a characteristic of RIP v2 that makes it more suitable for modern networks than RIP v1?

A. It is a classless routing protocol.B. It is a classful routing protocol.C. Its metric can accommodate a larger network.D. It has a lower administrative distance.

3. Why is the use of a multicast address for RIP v2 routing updates an improvement over the use of a broadcast address?

A. Routers give priority to multicast addressed packets when they are received whereas broadcast receives low priority.

B. It eases the pressure on the limited number of usable IP addresses.C. Hosts that are not running RIP will discard the packets at layer 2

instead of processing them as far as layer 4.D. It enables the routers to learn about all other routers in the system that

are running RIP v2.

4. What information is found in a RIP v2 update but not in a RIP v1 update? (Choose 2)

A. Network addressB. Subnet maskC. Number of hopsD. Next hop addressE. Default route

5. How do RIP v1 and RIP v2 compare in their features to avoid routing loops?

A. RIP v1 uses the split horizon rule but RIP v2 does not need to use it.B. RIP v1 takes longer to count to infinity than RIP v2.C. RIP v2 has a higher default value for its holddown counter.D. RIP v2, being classless, is less prone to develop routing loops.E. Both versions use the same methods of avoiding routing loops.

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6. Refer to the picture:

Why should RIP v2 be run on this network rather than RIP v1?A. The major network address has been subnetted.B. The subnets are discontiguous.C. VLSM has been used.D. CIDR has been used.

7. Why should RIP v2 not be run with default settings on a network with discontiguous subnets?

A. It summarises to class boundaries so that remote discontiguous networks are not recognised.

B. It does not send subnet mask information in its routing updates, so it cannot recognise subnets unless they are directly connected.

C. It has a maximum hop count of 15 and this is not enough to reach discontiguous subnets.

D. It does not support VLSM or CIDR so that it cannot carry out the summarising needed for discontiguous networks.


Routers A and B are running RIP v2 with default settings. What networks should A advertise to B?

A. 172.16.1.0/24, 172.16.2.0/24 and 172.16.3.0/24B. 172.16.1.0/22C. 172.16.0.0/16D. 172.16.0.0/23 and 172.16.2.0/23

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9. The 192.168.1.0 network has been subnetted using VLSM and all the subnets are contiguous. Router D is the border router leading to another group of networks, and it advertises 192.168.1.0/24 to Router E. All routers in the system are running RIP v2. A packet addressed to 192.168.1.2 arrives at Router E. What will happen?

A. Router E will drop the packet because it does not have a route to the required subnet.

B. Router E will send the packet on the summary route to Router D and Router D will then forward the packet on to the right subnet.

C. Router E will send the packet on its default route to Router D and Router D will then forward the packet on to the right subnet.

D. Router E will send the packet to Router D but router D will drop the packet.

10.Router A has been configured to run RIP with default settings. It’s immediate neighbour, Router B, has been configured to run RIP v2. What is true of the updates?

A. The routers are running different versions of RIP and so neither router can read routing updates from the other router.

B. Router A will send version 1 updates which can be read by Router B, but Router B will send version 2 updates which cannot be read by Router A.

C. Router B will autodetect that Router A is running RIP v1 and will therefore send v1 updates to Router A.

D. Router B will send v2 updates to Router A and Router A will read the updates, but ignore information that is specific to v2.

11.Which are examples of supernetting? (Choose 2)A. 10.10.0.0/12B. 10.10.0.0/16C. 10.10.0.0/21D. 172.19.0.0/12E. 172.19.0.0/16F. 172.19.0.0/21G. 172.19.0.0/24H. 192.168.0.0/21I. 192.168.0.0/24

12.Which command would propagate a default route across a network where routers are running RIP v2?

A. Default-route propagateB. Default-information originateC. Redistribute ripD. Redistribute default-information

13.A router configuration includes the following:

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Router(config)#int fa0/0Router(config-if)#ip address 172.16.1.0 255.255.255.0Router(config)#int fa0/1Router(config-if)#ip address 172.16.2.0 255.255.255.0Router(config)#int s0/0Router(config-if)#ip address 172.16.3.0 255.255.255.0The router is running RIP v1. Would it be sensible to configure serial 0/1 with the IP address 172.16.20.0 255.255.255.252?

A. No, because this is not a valid subnet mask for a serial interface.B. No, because this would create an overlap of IP addresses.C. No, because the 172.16.4.0 address should be used next for

consistency.D. No, because this would involve VLSM which is not supported by RIP

v1.E. Yes, this would be acceptable because it is on a different classful

network.

14.Router A has a summarised route to 172.16.0.0/14. It sends a RIP v2 update including this route to Router B, which is also running RIP v2. What happens?

A. Router B installs the summarised route to 172.16.0.0/14 in its routing table (assuming that it has no better route.)

B. Router B performs automatic summarisation to the class boundary and installs a route to 172.16.0.0/16.

C. Router B performs automatic summarisation to the class boundary and installs routes to 172.16.0.0/16, 172.16.1.0/16, 172.16.2.0/16 and 172.16.3.0/16.

D. Router B does not install any route to 172.16.0.0 in its routing table.15.Router A has a summarised route to 172.16.0.0/14. It sends a RIP v2

update including this route to Router B, which is running RIP v1. What happens?

A. Router B installs the summarised route to 172.16.0.0/14 in its routing table (assuming that it has no better route.)

B. Router B performs automatic summarisation to the class boundary and installs a route to 172.16.0.0/16.

C. Router B performs automatic summarisation to the class boundary and installs routes to 172.16.0.0/16, 172.16.1.0/16, 172.16.2.0/16 and 172.16.3.0/16.

D. Router B does not install any route to 172.16.0.0 in its routing table.

16.Refer to the picture:

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Why is there a problem with the addressing scheme above?A. There is an overlap between 192.168.1.220/30 and 192.168.1.192/27B. There is an overlap between 192.168.1.188/30 and 192.168.1.192/27C. There is an overlap between 192.168.1.128/27 and 192.168.1.188/30D. 192.168.1.188 is not a valid network address.E. 192.168.1.220 is not a valid network address.


You want the 192.168.7.0 network to be advertised in routing updates, but you do not want routing updates to be sent out of interface 192.168.7.1. Which commands should you give? (Choose 2)

A. Router(config)#router ripRouter(config-router)#network 192.168.7.0

B. Router(config)#router ripRouter(config-router)#no network 192.168.7.0

C. Router(config)#router ripRouter(config-router)#192.168.7.1 inactive

D. Router(config)#int fa0/0Router(config-router)#shutdown

E. Router(config)#router ripRouter(config-router)#passive-interface 192.168.7.1

18.C 192.168.3.0/24 is directly connected, Serial0/1Which are true of this route? (Choose 3)

A. This is an ultimate route.B. This is not an ultimate route.C. This is a level 1 route.D. This is a level 2 route.E. This is a network route.F. This is a supernet route.G. This is a parent route.H. This is a child route.

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19.R 192.168.4.0/24 [120/2] via 172.30.1.1, 00:00:02, Serial0/0Which are true of this route? (Choose 3)


20.Refer to the IP route172.30.0.0/24 is subnetted, 3 subnetsC 172.30.1.0 is directly connected, Serial0/0C 172.30.2.0 is directly connected, Serial0/1R 172.30.3.0 [120/1] via 172.30.2.2, 00:00:12, Serial0/1Which are true of the route to 172.30.3.0? (Choose 3)


21.Refer to the IP route: 172.30.0.0/24 is subnetted, 3 subnetsC 172.30.1.0 is directly connected, Serial0/0C 172.30.2.0 is directly connected, Serial0/1R 172.30.3.0 [120/1] via 172.30.2.2, 00:00:12, Serial0/1Which are true of the route to 172.30.0.0? (Choose 3)

A. This is an ultimate route.B. This is not an ultimate route.C. This is a level 1 route.D. This is a level 2 route.E. This is a supernet route.F. This is a parent route.G. This is a child route.

22.Refer to the IP route:172.30.0.0/24 is subnetted, 3 subnetsC 172.30.1.0 is directly connected, Serial0/0C 172.30.2.0 is directly connected, Serial0/1R 172.30.3.0 [120/1] via 172.30.2.2, 00:00:12, Serial0/1S 172.30.4.0 [1/0] via 172.30.1.2Which address will require a recursive lookup?

A. 172.30.1.24

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B. 172.30.2.24C. 172.30.3.24D. 172.30.4.24

23.A router has three directly connected networks, 192.168.9.0/26, 192.168.9.64/26 and 192.168.9.128/26. What parent route will be included in the routing table?

A. 192.168.9.0/24B. 192.168.9.0/26C. 192.168.9.0/28D. 192.168.0.0/16

24.Refer to the IP route:172.30.0.0/24 is subnetted, 3 subnetsC 172.30.1.0 is directly connected, Serial0/0C 172.30.2.0 is directly connected, Serial0/1R 172.30.3.0 [120/1] via 172.30.2.2, 00:00:12, Serial0/1S 172.30.4.0 [1/0] via 172.30.1.2C 172.30.5.0 is directly connected, FastEthernet 0/0S* 0.0.0.0/0 is directly connected, Serial 0/0

The router with this routing table is running an IOS with a version before 11.3 and the default routing behaviour has not been changed. What will happen to a packet addressed to 172.30.3.6?

A. It will be forwarded through Serial 0/0B. It will be forwarded through Serial 0/1C. It will be forwarded through FastEthernet 0/0D. It will be dropped

25.Refer to the IP route:172.30.0.0/24 is subnetted, 3 subnetsC 172.30.1.0 is directly connected, Serial0/0C 172.30.2.0 is directly connected, Serial0/1R 172.30.3.0 [120/1] via 172.30.2.2, 00:00:12, Serial0/1S 172.30.4.0 [1/0] via 172.30.1.2C 172.30.5.0 is directly connected, FastEthernet 0/0S* 0.0.0.0/0 is directly connected, Serial 0/0

The router with this routing table is running an IOS with a version before 11.3 and the default routing behaviour has not been changed. What will happen to a packet addressed to 172.30.6.6?


26.Refer to the IP route:

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172.30.0.0/24 is subnetted, 3 subnetsC 172.30.1.0 is directly connected, Serial0/0C 172.30.2.0 is directly connected, Serial0/1R 172.30.3.0 [120/1] via 172.30.2.2, 00:00:12, Serial0/1S 172.30.4.0 [1/0] via 172.30.1.2C 172.30.5.0 is directly connected, FastEthernet 0/0S* 0.0.0.0/0 is directly connected, Serial 0/0The router with this routing table is running an IOS with a version before 11.3 and the default routing behaviour has not been changed. What will happen to a packet addressed to 172.31.3.6?


27.A router running IOS version 11.2 has a default route but it is dropping packets addressed to hosts on the subnet 192.168.1.64/28, which is not in its routing table. Subnet 192.168.1.32/28 is in its routing table. What can an administrator do so that these packets use the default route?

A. Switch to a classless routing protocolB. Give the command ip classlessC. Give the command no ip classlessD. Configure the default route again

28.Gateway of last resort is not set192.168.1.0/24 is variably subnetted, 4 subnets, 2 masksC 192.168.1.0/27 is directly connected, FastEthernet0/0C 192.168.1.96/27 is directly connected, FastEthernet0/1R 192.168.1.160/27 [120/1] via 192.168.1.193, 00:00:12, Serial0/0C 192.168.1.192/30 is directly connected, Serial 0/0

What will happen to a packet addressed to 192.168.1.120?A. It will be forwarded through FastEthernet0/0B. It will be forwarded through FastEthernet0/1C. It will be forwarded through Serial0/0D. It will be dropped

29.Gateway of last resort is not set

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192.168.1.0/24 is variably subnetted, 4 subnets, 2 masksC 192.168.1.0/27 is directly connected, FastEthernet0/0C 192.168.1.96/27 is directly connected, FastEthernet0/1R 192.168.1.160/27 [120/1] via 192.168.1.193, 00:00:12, Serial0/0C 192.168.1.192/30 is directly connected, Serial 0/0

What will happen to a packet addressed to 192.168.1.38?A. It will be forwarded through FastEthernet0/0B. It will be forwarded through FastEthernet0/1C. It will be forwarded through Serial0/0D. It will be dropped

30.Which route would provide the best match for a packet addressed to 172.16.0.12?

A. 172.16.0.0/16B. 172.16.0.0/20C. 172.16.0.0/24D. 172.16.0.0/28E. 172.16.0.0/30

31.A router has a static route to 172.16.0.0/16 and a RIPv2 route to 172.16.1.0/24. Which route will be used by a packet addressed to 172.16.1.6?

A. The static route because it has a lower administrative distanceB. The RIPv2 route because it is a better matchC. Load balancing will be used so it might go on either routeD. The packet will be dropped

32.What is EIGRP?A. A classful distance vector routing protocolB. A classless distance vector routing protocolC. A classful link state routing protocolD. A classless link state routing protocol

33.What administrative distance is the default for an internal EIGRP route?A. 1B. 5C. 20D. 90E. 100F. 110G. 120H. 170

34.What administrative distance is the default for an external EIGRP route?A. 1B. 5C. 20D. 90

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E. 100F. 110G. 120H. 170

35.What administrative distance is the default for an EIGRP summary route?A. 1B. 5C. 20D. 90E. 100F. 110G. 120H. 170

36.What information must be included in EIGRP configuration commands in order to distinguish between possible different instances of EIGRP?

A. Autonomous System numberB. Administrative Distance numberC. Metric numberD. Hostname of router

37.What must neighbour routers have in common in order to form an adjacency for EIGRP routing?

A. Same hello intervalB. Same hello timeC. Same AS numberD. Same network commands

38.Which of the following is not a table used by EIGRP?A. Neighbour tableB. Routing tableC. Network tableD. Topology table

39.What does EIGRP put in the routing table?A. Feasible successor routesB. Successor routesC. Backup routesD. All known routes

40.What sort of route is regarded by DUAL as passive?A. A route that is downB. A route that is not sending updatesC. A route that is being recalculatedD. A route that can be used

41.Where would you look to find a route marked as A for active or P for passive?

A. Routing tableB. Topology table

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C. Neighbour tableD. Running configuration

42.Which routes does EIGRP store as backup routes in case the current best routes become unavailable?

A. Successor routesB. Feasible routesC. Feasible successor routesD. Feasible condition routes

43.What is the reported distance of a route?A. The metric of the route as calculated by the local routerB. The metric of the route as calculated by a neighbour routerC. The number of hops to the destination starting from a neighbourD. The physical distance between neighbouring routers

44.What is an autonomous system?A. A group of networks under a common administration for routing

purposes.B. A group of networks running the same routing protocol.C. A group of networks that are not connected to the Internet.D. A group of networks that are all subnets of the same classful network.


What will router A do if the link to its LAN goes down?A. Send an update to routers B and C.B. Send an update to router B.C. Wait for its next scheduled update and include the information.D. Recalculate all its routes.

46.What routes are saved in the topology table?A. The best route to each network.B. All the routes that have been discovered.C. Feasible successor routes.D. Successor and feasible successor routes.

47.You are configuring EIGRP on a router, you enter the commandnetwork 172.16.3.0 255.255.255.0

And the router accepts it. What will appear in the configuration if you give the show run command?

A. network 172.16.3.0 255.255.255.0B. network 172.16.3.0 0.255.255.255C. network 172.16.3.0 0.0.0.255D. network 172.16.3.0

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48.What command would you give to configure EIGRP on a router using AS number 2?

A. Router eigrp 2B. Router ip eigrp 2C. Router eigrp as 2D. Router eigrp process 2

49.How are EIGRP update packets sent?A. BroadcastB. MulticastC. UnicastD. Sometimes multicast and sometimes unicast

50.What does EIGRP use RTP for?A. To calculate best routesB. To search the routing tableC. To provide reliable or unreliable transmission as requiredD. To provide layer 3 encapsulation instead of using IP

51.What is the advantage of EIGRP storing feasible successor routes as well as successor routes?

A. It makes the routing table smaller by storing some of the routes elsewhere

B. It means that there is always a backup route to every networkC. It gives the router a greater choice in the selection of routes, allowing

load balancingD. It saves processor time by reducing the number of times that routes

must be calculated

52.Which is not a metric used by EIGRP?A. LoadB. BandwidthC. DelayD. MtuE. Reliability

53.Which of these are EIGRP metrics that are measured on the link so that dynamic values can be used? (Choose 2)

A. LoadB. BandwidthC. DelayD. MtuReliability

54.What default value does EIGRP use for the bandwidth calculations for a serial link?

A. 1024 KbpsB. 2048 KbpsC. 10000 Kbps

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D. 100000 Kbps

55.Refer to the picture

What are the two numbers in brackets?A. The feasible distance and the successor distanceB. The feasible distance and the reported distanceC. The administrative distance and the routing metricD. The feasible distance and the autonomous system number

56.What is likely to happen if the bandwidth command is wrongly configured on a router interface and the router is running EIGRP?

A. The speed of transmission on the link will be wrongB. The router will not become adjacent with an EIGRP neighbourC. The router may choose suboptimal pathsD. The router will not be able to calculate its metrics

57.A router running EIGRP finds 3 routes to the same destination.Route A has FD 3523840 and RD 3011840

Route B has FD 2297856 and RD 39260Route C has FD 3558000 and RD 2115200What will it do?

A. Put route B in its routing table and routes A and B in its topology tableB. Put route B in its routing table and routes A and C in its topology tableC. Put route B in its routing table and routes B and C in its topology tableD. Put route B in its routing table and routes A, B and C in its topology

table

58.Why might an administrator give the no auto-summary command on a router running EIGRP? (Choose 2)

A. To allow routing between discontiguous networks.B. To allow packets for unknown subnets to be sent on a default route.C. To remove any manually configured supernet routesD. To enable support for VLSM

59.An advantage of EIGRP using bounded, partial updates is:A. It reduces the size of the routing tablesB. It reduces the number of routers that have to become adjacentC. It limits the use of bandwidthD. It avoids the need to send hello messages

60.Why would a network command include a wildcard mask?A. To allow the use of VLSMB. To include only some subnets of a classful network in routing updatesC. To create summary routesD. To allow the networks to be included in updates by more than one

instance of EIGRP

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61.What wildcard mask is the inverse of subnet mask 255.255.255.252?A. 0.0.0.3B. 0.0.0.15C. 0.0.0.252D. 0.0.0.255

62.Which are the first networks to be put in the routing table?A. Directly connected networks.B. Networks learned using OSPFC. Networks learned using EIGRP.D. Networks learned using RIP.

63.What needs to be true of a link before that link is included in link state updates? (Choose all that apply.)A. The link must have an IP address configured.B. The link must be up.C. The link must be a serial link.D. The link must have its network included in a network command.

64.Which routing algorithm is used by link state routing protocols?A. DUALB. SPFC. LSUD. Bellman-Ford

65.When does a link state routing protocol make most use of bandwidth? (Choose 2)A. It uses a similar amount all the time.B. Every 30 seconds.C. When the routers first start up.D. When the topology changes.

66.Where does a link state router send link state packets?A. To all directly connected devices.B. To all routers in the area that are running the same routing protocol.C. To one central router in the area.D. To all neighbours with which it has become adjacent.

67.When does a link state router send hello packets?A. When there is a topology change.B. At regular intervals to maintain a keepalive.C. When a neighbour sends a request.D. To notify that a regular update is due.

68.Which will be the same for all routers in an OSPF area that has converged?A. The routing tableB. The link state databaseC. The neighbour table

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D. The best paths to each destination.

69.What information is included in a link state packet? (Choose all that apply)A. Address and mask of network for the linkB. Metric for the linkC. Address of final destination networkD. Number of hops to destinationE. Hostname of neighbour on the linkF. Type of link e.g. Serial, Ethernet

70.Why is it an advantage for a link state protocol to have a hierarchical design?A. It allows routers made by different manufacturers to be used.B. It cuts down processing time and use of bandwidth.C. It allows all routers to become adjacent to each other.D. It allows a more efficient metric to be used.

71.Which is true of a link state routing protocol?A. Each router should have the same information in its routing table

when the network has converged.B. Each router uses the best route metric supplied by its neighbour to

calculate backup routes.C. Each router calculates its own best routes using the information in its

link state database.D. Each router passes on its best route calculations to its neighbour to

save on processing effort.

72.How does a link state routing protocol differ from EIGRP?A. It uses hello packets to form adjacencies with neighbours.B. It sends updates when the topology changes.C. It is fast to converge.D. It holds information about the whole topology of the routing area.

73.How do link state protocols manage to avoid routing loops?A. They use the split horizon rule so that they do not send information

out of an interface that has received it.B. They hold a complete picture of the topology so that the routing

algorithm should not produce any routes containing loops.C. They use holddown timers so that they wait before passing on the

information that a link may be down.D. They use count to infinity by restricting the number of hops to a

network.

74.Which are advantages of using a link state routing protocol rather than a distance vector routing protocol such as RIP? (Choose 2)A. Link state routing protocols give fast convergence.B. Link state routing protocols make lower demands on router

processing power.

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C. Link state routing protocols send regular complete updates so that the information is always correct.

D. Link state routing protocols tend to use less bandwidth after the initial flooding phase.

75.What is the Dijkstra algorithm?A. Another name for the Bellman-Ford algorithm.B. Another name for the DUAL algorithm.C. Another name for the SPF algorithm.D. Another name for the STP algorithm.

76.Which is true of OSPF’s metric in the Cisco implementation?A. The metric is cost, which is calculated so that the highest bandwidth

links have the lowest cost.B. The metric is cost, which is calculated using the number of hops.C. The metric is cost, which is calculated according to the charge that

the ISP makes for the link.D. The metric is cost, which is calculated using bandwidth and delay by

default, though load and reliability can also be used.

77.When a link goes down, how long does a router running a link state protocol wait before sending an update to its neighbours?A. 30 secondsB. 90 secondsC. 30 minutesD. It sends the update at once.

78.What does a link state router do to a link state packet after receiving it and before forwarding it to a neighbour?A. It updates the metric by 1.B. It recalculates the best routes and updates the packet.C. Nothing. It forwards the packet as it is.D. It does not forward packets that it receives.

79.Where would OSPF be a good choice of routing protocol but EIGRP would not?A. On a network where the routers are old and have little processing

power.B. On a network where non-Cisco routers may be used.C. On a network where subnetting uses VLSM.D. On a network where fast convergence is essential.

80.Two neighbouring routers are configured for OSPF, but they have different hello and dead intervals. What will happen? A. They will become adjacent as long as they are configured for the

same area.B. They will negotiate a hello interval before they become adjacent.C. They will become adjacent as long as they are configured with the

same process number.

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D. They will fail to become adjacent.

81.Router A is configured for OSPF using the following commands:RouterA(config)#router ospf 1RouterA(config-router)#network 192.168.1.0 0.0.0.255 area 0RouterA(config-router)#network 192.168.2.0 0.0.0.255 area 0

Neighbouring router B is to be configured for OSPF. What must be true if the routers are to become adjacent?

A. The routers must be linked by their serial interfaces.B. Router B must use the process number 1 in its configuration.C. Router B must use area 0 in its configuration.D. Both the routers must be Cisco routers.

82.What is the default administrative distance for OSPF?A. 90B. 100C. 110D. 120

83. If a Cisco router learns two routes to the same destination, one through OSPF and one through EIGRP, which route will be added to the routing table if default values are used?A. The OSPF routeB. The EIGRP routeC. It will depend on the metrics for the routesD. Both routes will be addedE. Neither route will be added.

84.What routing metric is defined by the OSPF standard?A. CostB. BandwidthC. Hop countD. Bandwidth and delay

85.What parameters do Cisco routers use in order to calculate the OSPF metric?A. Hop count, with a maximum of 100 hops.B. Bandwidth, related to a standard bandwidth.C. Cost charged by the service provider for use of the link.D. A combination of bandwidth and delay, with the option of using load

and reliability as well.

86.Why would you use the bandwidth command when configuring an interface, where OSPF routing is used?A. To control the speed of the link and maximise efficiency.B. To make sure that both ends of the link are operating at the same

bandwidth.C. To ensure that OSPF uses a suitable value when calculating its

metric.

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D. To ensure that the two routers are using the same parameters and can become adjacent.

87.Which interface configuration command might you use as an alternative to using the bandwidth command, and achieve the same goal.A. CostB. ChargeC. Clock rateD. DescriptionE. Link speed

88.A routing table contains the entry:O 192.168.3.0/24 [110/1786] via 192.168.1.0, 00:00:20, Serial0/0What are the numbers in brackets?

A. Administrative distance and bandwidth.B. Administrative distance and hop countC. Administrative distance and costD. Autonomous system and bandwidth.E. Autonomous system and hop countF. Autonomous system and cost

89.What happens to a routing table if the router loses power?A. It is lost because it is held only in RAM.B. If it has been saved to NVRAM then it can be recovered, otherwise it

is lost.C. It is held in flash memory, so it can be recovered on re-boot.D. It is lost unless the router has been configured to make automatic

back-ups to a TFTP server.

90.Which routes will appear first in a routing table when a router is started up and loads an existing configuration? (Choose 2)A. Static routes that are in the configuration.B. OSPF routes if the configuration includes OSPF.C. EIGRP routes if the configuration includes EIGRP.D. RIP routes if the configuration includes RIPE. Directly connected routes if the interfaces are configured and come

up.

91.A router is configured for OSPF and given the command:Router(config-router)#network 172.16.3.0 0.0.0.255 area 0What is the 0.0.0.255 item?

A. The subnet maskB. The inverse maskC. The wildcard maskD. The area mask

92.A router is configured for OSPF and given the command:Router(config-router)#network 192.168.3.0 255.255.255.240 area 0If the router accepts this command, what will appear in the running configuration?

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A. network 192.168.3.0 255.255.255.240 area 0B. network 192.168.3.0 255.255.255.15 area 0C. network 192.168.3.0 0.0.0.240 area 0D. network 192.168.3.0 0.0.0.42 area 0E. network 192.168.3.0 0.0.0.15 area 0

93.Which is true?A. The network command must contain a mask for both OSPF and

EIGRP.B. The network command must contain a mask for OSPF but it is

optional for EIGRP.C. The network command must contain a mask for EIGRP but it is

optional for OSPF.D. The network command can contain an optional mask for both OSPF

and EIGRP.

94.What does OSPF do about automatic summarisation?A. By default it will summarise to the classful boundary when sending

updates.B. You need to use the no autosummary command if there are

discontiguous subnets.C. It will use automatic summarisation if you leave the mask out of the

network statements.D. OSPF does not carry out automatic summarisation to classful

boundaries.

95.The 172.16.0.0 network is subnetted using a /20 mask. Which network statement is correct for this mask?A. Network 172.16.16.0 0.0.0.15 area 0B. Network 172.16.16.0 0.0.0.240 area 0C. Network 172.16.16.0 0.0.3.255 area 0D. Network 172.16.16.0 0.0.7.255 area 0E. Network 172.16.16.0 0.0.15.255 area 0F. Network 172.16.16.0 0.0.224.255 area 0G. Network 172.16.16.0 0.0.240.255 area 0

96.The 172.16.0.0 network is subnetted using a /26 mask. Which network statement is correct for this mask?

A. Network 172.16.16.0 0.0.0.3 area 0B. Network 172.16.16.0 0.0.0.7 area 0C. Network 172.16.16.0 0.0.0.15 area 0D. Network 172.16.16.0 0.0.0.31 area 0E. Network 172.16.16.0 0.0.0.63 area 0F. Network 172.16.16.0 0.0.0.127 area 0G. Network 172.16.16.0 0.0.0.255 area 0

97.By default, cost is calculated as 108/bandwidth.What is the cost of a 10Mbps Ethernet link?

A. 1

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B. 10C. 100D. 1000

98.By default, cost is calculated as 108/bandwidth. A serial link is configured with the command bandwidth 56. What is the cost of the link?A. 48B. 56C. 64D. 781E. 1652F. 1785

99.Refer to the Picture:

By default, cost is calculated as 108/bandwidth. What cost would router A calculate to a destination on LAN C?

A. 49B. 128C. 781D. 831

100. What does the arrival of a hello packet from an OSPF neighbour do to the dead timer associated with that neighbour?A. Sets it to zero.B. Sets it to the default or configured value.C. Sets it to the value of the hello timer.D. Nothing.

101. Refer to the picture

Router C has been configured with a default route to the ISP. Routers A, B and C are using OSPF. How can routers A and B learn the default route from C?

A. Include the default route in a network command on A and B.B. Include the default information originate command in router C’s

configuration.C. Include the default information originate command in router A’s

configuration.D. Include the redistribute ospf command in router C’s configuration.E. Include the redistribute ospf command in router A’s configuration.


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Hosts on networks connected to routers A, B and C can send messages to the ISP. What should be done so that the ISP can send replies back to the hosts?

A. Configure a default route to C on the ISP’s router.B. Configure OSPF on all routers on the path to each destination.C. Configure a static route to C on the ISP’s router.D. Configure a static route or static routes on the ISP’s router to include

all networks connected to A, B and C.

103. If router A uses OSPF and learns a default route that has been configured on router C, how is this default route likely to be displayed in A’s routing table?A. S* 0.0.0.0/0 [0/0] is directly connected, Serial0/1B. O 0.0.0.0/0 [110/847] via 192.168.1.1, 00:00:20, Serial0/1C. O* 0.0.0.0/0 [110/847] via 192.168.1.1, 00:00:20, Serial0/1D. O*E1 0.0.0.0/0 [110/1] via 192.168.1.1, 00:00:20, Serial0/1E. O*E2 0.0.0.0/0 [110/1] via 192.168.1.1, 00:00:20, Serial0/1

104. A router has directly connected networks 172.16.4.0/23 and 172.16.6.0/23. What single network command would allow OSPF routing updates to include both of these networks?A. Network 172.16.4.0 0.0.0.255 area 0B. Network 172.16.4.0 0.0.1.255 area 0C. Network 172.16.4.0 0.0.3.255 area 0D. Network 172.16.4.0 0.0.7.255 area 0E. Network 172.16.4.0 0.0.15.255 area 0

105. At which prompt would you give the router-id command if you wish to set up a router ID for OSPF purposes?A. Router(config)#B. Router(config-if)#C. Router(config-router)#D. Router(config-line)#E. Router(config-id)#

106. A router has active interfaces 192.168.1.1, 172.16.3.1, and 10.0.0.1. It has a loopback interface 172.31.255.255. It has been configured with the command router-id 192.168.255.6. What ID will the router use?A. 192.168.1.1B. 192.168.255.6C. 172.16.3.1D. 172.31.255.255E. 10.0.0.1

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107. A router has active interfaces 192.168.1.1, 172.16.3.1, and 10.0.0.1. It has a loopback interface 172.31.255.255. It has not been configured with the router-id command. What ID will the router use?

A. 192.168.1.1B. 172.16.3.1C. 172.31.255.255D. 10.0.0.1


Router A has three active interfaces with IP addresses as shown. It has no loopback interfaces and no router-id configured. What router ID will it use when it takes part in a DR/BDR election?

A. 192.168.1.1B. 172.16.3.1C. 10.0.0.1D. It will not have a router IDE. It will not need to take part in an election

109. Which type(s) of network(s) require(s) a DR/BDR election for OSPF?A. Non-broadcast multi-access networksB. Broadcast multi-access networksC. Point to point networksD. All multi-access networksE. All serial links

110. An Ethernet network has only one router connected to it. Will there be a DR/BDR election on this network?A. No, the single router will automatically be the DR.B. No, the OSPF process will not reach the election stage.C. No, an Ethernet network does not hold DR/BDR elections.D. Yes, an Ethernet network must always hold an election.

111. A multipoint Frame Relay network has 5 routers. How many OSPF adjacencies would be needed if the DR/BDR system did not exist?A. 5B. 6C. 8D. 10E. 12F. 20

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112. A multipoint Frame Relay network has 5 routers. How many OSPF full adjacencies are formed after the DR/BDR elections?A. 5B. 6C. 7D. 8E. 9F. 10

113. How can you configure your most powerful router so that it should win a DR/BDR election even if it does not have the highest router ID?A. Give it a loopback address.B. Give it a higher priority than the other routers.C. Give it a lower priority than the other routers.D. The most powerful router will automatically win so there is no need to

do anything.

114. You have configured a router to be chosen as DR, however another router is chosen when the routers are powered on. What could be the problem?A. Your preferred router took longer to load, and a DR had already been

chosen.B. Your preferred router has a higher router ID than the other routers.C. Your preferred router has a higher priority than the other routers.D. The other router is more powerful.E. The other router provides the entry to the stub network.

115. What sort of router is referred to as DROther?A. A designated routerB. A backup designated routerC. A router that has not been chosen as DR or BDRD. A router that will become DR if the existing DR goes down.

116. Routers pass through the 2-WAY state as they move towards full adjacency. In what circumstances would routers remain in the 2-WAY state in relation to each other and not proceed to full adjacency?A. When they have not exchanged any hello messages.B. When they are configured with network commands that show

different areas.C. When they are both DROther routers.D. When one of them is a BDR router.

117. Refer to the Picture:

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None of the routers has a router ID configured, none of them have loopback interfaces, and they all have the default priority. Which will be DR on the central network, assuming that none of them miss the start of the election.

A. AB. BC. CD. D

118. What happens on a multi-access network with 4 routers if the designated router goes down?A. There is a new election for DR and BDR.B. There is a new election for DR but the BDR is unchanged.C. The BDR becomes the new DR and a new BDR is elected.D. The BDR becomes the new DR but there is no BDR.

119. The designated router on the 4-router network has gone down, and another router has taken over as DR. After a while, the original DR starts up again. What happens?A. The current DR and BDR keep their jobs and the original DR

becomes a DROther.B. A new election is held.C. The original DR gets its job back.D. The original DR becomes BDR.

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ccna2 quiz 2

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