cisco ccna ii take assessments

7/29/2019 Cisco CCNA II Take assessments

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1.

Refer to the exhibit. The network that is shown is running RIPv1. The 192.168.10.0/24

network was recently added and will only contain end users. What command or set of

commands should be entered on Router1 to prevent RIPv1 updates from being sent

to the end user devices on the new network while still allowing this new network to

be advertised to other routers?Router1(config-router)# no router rip Router1(config-router)# network 192.168.10.0

Router1(config-router)# no network 192.168.10.0

Router1(config-router)# passive-interface fastethernet 0/0

Router1(config-router)# passive-interface serial 0/0/0

2.

Refer to the output from the show ip route command. What can be concluded from

the output of this router command?

A preferred route to the destination has not been set.

There are two equal cost paths to network 1.0.0.0.

Both interfaces are being used equally to route traffic.

A variance must be set to load-balance across multiple paths.


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3.

Refer to the exhibit. The Ethernet interface on Router2 goes down and the

administrator notices that the route is still in the Router1 routing table. How much

longer will Router1 keep the down network in its routing table before marking it as

possibly down?

30 seconds

90 seconds

155 seconds

180 seconds

255 seconds

4. What is the default update period in seconds for the RIP routing protocol?

10

12

15

20

30

60

5. Which of the following is considered a limitation of RIP v1?

RIP v1 does not send subnet mask information in its updates.

RIP v1 is not widely supported by networking hardware vendors.

RIP v1 consumes excessive bandwidth by multicasting routing updates using a Class D

address.

RIP v1 requires enhanced router processors and extra RAM to function effectively.

RIP v1 does not support load balancing across equal-cost paths.

RIP v1 authentication is complicated and time-consuming to configure.


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6. Which command will display RIP activity as it occurs on a router?

debug ip rip

show ip route

show ip interface

show ip protocols

debug ip rip config

show ip rip database

7. What are three characteristics of the RIPv1 routing protocol? (Choose three.)

supports the use of VLSM

uses hop count as a metric

considers a metric of 16 as infinity

has an administrative distance of 110 by default

includes the destination IP address and subnet mask in routing updates

calculates metrics using the Bellman Ford algorithm

8.

Which of the following would be the correct command sequence to enable RIP on

Router B for all connected networks?

RouterB# router rip

RouterB(router)# network 210.36.7.0

RouterB(router)# network 220.17.29.0

outerB(router)# network 211.168.74.0

RouterB(config)# router rip

RouterB(config-router)# network 198.16.4.0


RouterB(config-router)#network 199.84.32.0


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RouterB(config)# configure router rip










RouterB(config-router)# network 210.36.7.0RouterB(config-router)# network 220.17.29.0

9.

Refer to the exhibit. All routers are configured with valid interface addresses in the

indicated networks and are running RIPv1. The network is converged. Which routes

are present in the routing tables?

All routers have all routes in their routing table.

All routers have all /30 routes, but do not have /24 routes in their routing table.All routers have all /30 routes. Routers A and E also have some of the /24 routes in their

routing table.

All routers have all /30 routes. Routers B and D also have some of the /24 routes in their

routing table.

Routers A and E have all routes. Routers B and D have only /30 routes in their routing table.


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Routers A and E have only /24 routes. Routers B and D have only /30 routes in their routing

table.

10. What will happen if an interface IP address is entered for the address portion of

the network command in a RIPv1 configuration instead of a network address?

The router will reject the command.

A route to the host address will be added to outgoing RIP updates.

A route to the host address will be added to the routing table.

All interfaces in the same classful network as the configured address will be included in the

RIPv1 routing process.

11.

Refer to the exhibit. Router1 and Router2 are running the RIPv1 protocol. The

network administrator configures the command network 10.1.0.0 on Router1. Whatnetwork will Router1 advertise to Router2?

10.1.0.0/16

10.1.0.0/8

10.0.0.0/16

10.0.0.0/8

12.


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Refer to the exhibit. All routers in the exhibit are running RIP v1. The network

administrator issues the show ip route command on router A. What routes would

appear in the routing table output if the network is converged? (Choose two).

R 192.168.2.0/24 [120/1]

C 192.168.2.0/24 [120/1]

R 10.10.3.0/24 [120/0]

C 10.10.3.0/24 [120/1]

R 10.10.1.0/24 [120/2]

R 10.10.1.0/24 [120/3]

13.

Refer to the exhibit. A network consists of multiple routers. What can be verified

when the show ip protocols command is issued on one of the routers in the network?

whether all routes in the network have been properly added to the routing table

routing protocol configuration in use for IP on this router

operational status of routing protocols in use on all routers in the network

routing metric of each network that is listed in the routing table


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14.

Refer to the exhibit. What can be concluded from the routing table output of router

B?A static default route has been configured on B.

The default-information originate command has been entered on A.

All traffic that is destined for 192.168.1.1 will be sent to address 0.0.0.0.

Hosts on the 10.16.1.0/27 network have 192.168.1.1 configured as the default gateway

address.

15. The following line was displayed in the output of the show ip route command. R

192.168.3.0/24 [120/3] via 192.168.2.2, 00:00:30, Serial0/0 What is the value of the

routing metric?

3

12

20

30

120


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16.

Refer to the exhibit. All routers that are shown are running the RIP routing protocol.

All unknown IP traffic must be forwarded to the ISP. What router or set of routers are

recommended to have both a default route and the default-information

originatecommand issued to implement this forwarding policy?

only Router1

only the gateway router

all routers in the network

only the routers with LANs needing Internet access

17.

Refer to the exhibit. Router1 is running RIPv1. What command was entered into

Router1 to configure the gateway of last resort?

no auto-summaryip default-network 0.0.0.0

ip default-gateway 10.0.0.0

ip route 0.0.0.0 0.0.0.0 S0/0/1


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18. Which command or set of commands will stop the RIP routing process?

RouterB(config)# router rip RouterB(config-router)# shutdown

RouterB(config)# router rip RouterB(config-router)# network no 192.168.2.0

RouterB(config)# no router rip

RouterB(config)# router no rip

19. Which two statements are true regarding the characteristics of RIPv1? (Choose

two).

It is a distance vector routing protocol.

It advertises the address and subnet mask for routes in routing updates.

The data portion of a RIP message is encapsulated into a TCP segment.

The data portion of a RIP message is encapsulated into a UDP segment.

It broadcasts updates every 15 seconds.

It allows a maximum of 15 routers in the routing domain.

20.

Refer to the exhibit. RIPv1 is running on all three routers. All interfaces have been

correctly configured with addresses in the address ranges that are shown. Which

route would you see in the routing table on router CHI if the routers are configured

with the commands that are displayed in the exhibit?

192.168.0.4/30

192.168.0.0/24

192.168.0.0/16

192.168.0.32/27


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21.

Refer to the exhibit. The Ethernet interface on Router2 goes down and the

administrator notices that the route is still valid in the routing table of Router1. How

much longer will it take for Router1 to mark the route invalid by setting the metric to

16?

30 seconds

90 seconds

155 seconds

180 seconds

255 seconds

1. What two advantages does CIDR provide to a network? (Choose two.)reduced routing table sizedynamic address assignmentautomatic route redistributionreduced routing update traffic

automatic summarization at classful boundaries


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2.

Refer to the exhibit. Which address is a broadcast address for one of the subnetsthat are shown in the exhibit?192.168.4.3/29192.168.4.15/29192.168.4.65/26192.168.4.255/24

3.

In the network shown in the graphic, three bits were borrowed from the host portionof a Class C address. How many valid host addresses will be unused on the threepoint-to-point links combined if VLSM is not used?34123684180

4. Which of the following are contained in the routing updates of classless routingprotocols? (Choose two.)32-bit addressnext hop router interfacesubnet maskunicast host addressLayer 2 address


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5.

Refer to the exhibit. The network administrator wants to create a subnet for the point-

to-point connection between the two routers. Which subnetwork mask would provideenough addresses for the point-to-point link with the least number of wastedaddresses?255.255.255.192255.255.255.224255.255.255.240255.255.255.248255.255.255.252

6. What does VLSM allow a network administrator to do?utilize one subnet mask throughout an autonomous system

utilize multiple subnet masks in the same IP address spaceutilize IGRP as the routing protocol in an entire autonomous systemutilize multiple routing protocols within an autonomous system

7. Which three interior routing protocols support VLSM? (Choose three.)OSPFRIP v1RIP v2EIGRPBGPSTP

8. Which of the following problems does VLSM help to alleviate?the shortage of IP addressesthe difficulty of assigning static IP addresses to hosts in large enterprisesthe complexity of implementing advanced routing protocols such as OSPF and EIGRPthe shortage of network administrators qualified in the use of RIP v1 and IGRP


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9.

Refer to the exhibit. A network technician enters the static route in R1 needed toreach network 10.1.1.0/24. A ping from the S0/0/0 interface on R1 to host B fails. Thetechnician begins testing the network and has the following results:1. pings from R1 to the S0/0/0 interface on R2.successful2. pings from R1 to the Fa0/0 interface on R2.successful3. pings from host B to hosts on the 10.1.1.0/24 network.successful4. pings from host B to the Fa0/0 interface on R2.successful5. pings from R2 to host B.successful.What is the likely cause of the failure of the ping from R1 to host B?The default gateway on host B is not correctly set.

There are no routes back to networks connected to R1 from R2.There is a Layer 2 problem between R2 and host B.Host B has a defective Ethernet card.

10. A network administrator is tasked with dividing up a class C network among theQA, Sales, and Administration departments. The QA department is made up of 10people, the Sales is made up of 28 people, and the Administration has 6. Which twosubnets masks adequately address the QA and Sales departments? (Choose two.)255.255.255.252 for QA255.255.255.224 for Sales255.255.255.240 for QA

255.255.255.248 for QA255.255.255.0 for Sales


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11.

Refer to the exhibit. A network engineer is summarizing the two groups of routes onrouter R1 shown in the exhibit. Which summarization will work for all the subnets?192.168.0.0/23192.168.0.0/22192.168.0.0/21192.168.0.0/20

12.

A Class C address has been assigned for use in the network shown in the graphic.Using VLSM, which bit mask should be used to provide for the number of hostaddresses required on Router A, while wasting the fewest addresses?/31/30/29/28/27/26

13.

Refer to the exhibit. In the network that is shown, the router interfaces are assigned


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the first address in each subnet. Which IP address would be usable for a host on oneof the LANs in this network?192.168.1.5/30192.168.2.17/28192.168.2.63/27192.168.2.130/25

14.

Refer to the exhibit. What subnet mask will be applied if Router A sends a RIPv1update for the network 172.16.1.0 to Router B?none81624

15.

Refer to the exhibit. The number of required host addresses for each subnet in anetwork is listed in the exhibit. This number includes the host address requirementsfor all router ports and hosts on that subnet. After all device and router port addressassignments are determined, what will be the total number of unused host addressesavailable?614

29344062


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16.

An additional subnet is required for a new Ethernet link between Router1 andRouter2 as shown in the diagram. Which of the following subnet addresses can beconfigured in this network to provide a maximum of 14 useable addresses for thislink while wasting the fewest addresses?

192.1.1.16/26192.1.1.96/28192.1.1.160/28192.1.1.196/27192.1.1.224/28192.1.1.240/28

17. What is a supernet?the network for a default routea summarization of classful addressesa network that contains both private and public addresses

a set of discontiguous networks that are controlled by an ISP

18.

Refer to the exhibit. A network administrator needs to create two subnetworks from10.0.0.0/8 for a router running RIPv2. The Admin subnet requires 120 hosts and theSales subnet requires 58 hosts. The network administrator assigned 10.0.1.128/25 tothe Admin subnet. The Sales subnet is given 10.0.1.192/26. What will be the result ofthis addressing scheme?Because RIPv2 does not support VLSM, the subnet masks will not be allowed.The subnets will not have enough host addresses for the given network requirements.


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The subnets overlap and will be rejected by the router.The router will support the addressing scheme.

19. A router has a summary route to network 192.168.32.0/20 installed in its routingtable. What range of networks are summarized by this route?

192.168.0.0

192.168.32.0/24192.168.0.0 192.168.47.0/24192.168.32.0 192.168.47.0/24192.168.32.0 192.168.48.0/24192.168.32.0 192.168.63.0/24

20.

Refer to the exhibit. The network administrator wants to minimize the number ofentries in Router1s routing table. What should the administrator implement on thenetwork?VLSMCIDRprivate IP addressesclassful routing

21.

Refer to the exhibit. What subnet mask will be applied by router B when it receives aRIPv1 update for the network 172.16.1.0?none


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81624

22. What is a supernet?

the network for a default routea network that contains both private and public addressesa set of discontiguous networks that are controlled by an ISPa summarization of serveral IP classful networks into one IP address range

1. A network administrator has been told that the company IP address infrastructure

must adhere to RFC 1918. What three IP address ranges from RFC 1918 could the

administrator use on the network? (Choose three.)

10.0.0.0/8

127.0.0.0/8169.254.0.0/16

172.16.0.0/12

192.168.0.0/16

209.165.201.0/27

2.

Refer to the exhibit. Routers East and West are configured using RIPv1. Both routers

are sending updates about their directly connected routes. The East router can ping

the West router serial interface and West can ping the serial interface of East.

However, neither router has dynamically learned routes from the other. What is most

likely the problem?


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A gateway of last resort is required.

Subnetting is not supported by RIPv1.

VLSM is not supported by RIPv1.

One of the routers needs a clock rate on the serial interface.

3.

Refer to the exhibit. What effect will the commands that are shown have on RIP

updates for Router1?

Only version 2 updates are sent to 255.255.255.255.

Only version 2 updates are sent to 224.0.0.9.

Both version 1 and version 2 updates are sent to 224.0.0.9.

Both version 1 and version 2 updates are sent to 255.255.255.255.

4.


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Refer to the exhibit. What can be concluded from the output shown in the exhibit?

The routing table is limited to 2 routes.

The LAN interfaces are participating in the routing process.

One update has been sent out of each serial interface and 2 have been received.

The no auto-summary has not been configured on this router.

5. What are two reasons to implement RIP version 2 rather than RIP version 1?

(Choose two.)

RIP version 2 supports VLSM.

RIP version 2 supports more than 16 routers.

RIP version 2 supports classful (and not classless) routing.

RIP version 2 supports routing update authentication.

RIP version 2 supports multi-areas.

RIP version 2 uses the Dijkstra algorithm rather than the Bellman-Ford algorithm.

6.

Refer to the exhibit. RIPv1 is configured as the routing protocol for the network that

is shown. The following commands are used on each router:

router rip

network 10.0.0.0

network 172.16.0.0

When this configuration is complete, users on the LAN of each router are unable to

access the remote LANs. Why?

The network statements are configured incorrectly.

A routing loop has been created.

RIPv1 is unable to route to discontiguous subnets of a major network.

RIPv1 is unable to route networks with a /24 subnet mask.


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7. A network administrator installed four new routers that are running RIPv2. Router1

is a boundary router in the RIPv2 network and has a default route configured. Once

the network has converged, the network administrator enters Router1(config-router)#

default-information originate on Router1. How will this affect the network?

prevents Router1 from forwarding updates about networks that are not directly connected

causes all routers in the network to synchronize routing updates with Router1

forces Router1 to become the primary or designated router (DR) for updates

propagates the default route to all routers in the network

8.

Refer to the exhibit. A technician needs to add a new loopback interface to

test routing functionality and network design. The technician enters the following set

of commands on the router:

Sanford(config)# interface loopback1

Sanford(config-if)# ip address 192.168.6.62 255.255.255.252

Why does the router respond with an error?

The router does not allow loopback interface configurations.

This mask can not be used with this class of addresses.

Classless routing must be configured before this address can be added.

The network address for Loopback1 overlaps with an already configured interface address.

The router is over the limit for the maximum paths that can be provided in therouting table.

9. What is the maximum network diameter permitted by the default metric of RIPv2?

15 hops

16 hops

100 hops


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120 hops

255 hops

10. What are two functions of the network command used when configuring

routing protocols? (Choose two.)

identifies which networks will be included in the routing updates

identifies the hosts addresses that can be summarized in the network

used to list all addresses for remote and local networks

determines which subnet mask to apply to routing updates

determines which interfaces can send and receive routing updates

11.

Refer to the exhibit. All routers are running RIPv1. What changes will occur in

the routing table of router B if a loopback interface with an address of 10.16.1.129/27

is configured on router B?Routes to the 10.16.1.0/27, 10.16.1.64/27, and 10.16.1.128/27 networks areadded.

A connected route to the 10.16.1.128/27 network is added.

A third route to the 10.0.0.0/8 network with RIPv1 as the source is added.

The 10.0.0.0/8 route is dropped immediately from the routing table after router B is

configured.


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12.

Refer to the exhibit. If all routers are running RIP version 2, why is there no route for

the 192.168.1.32/27 network?

Rip version 2 does not send subnet masks in its updates.

Router A is not setup with RIP as a routing protocol.

Rip version 2 will auto summarize routes by default.

Router B is not setup to advertise the 192.168.1.64/30 network.

13. RIPv2 is the configured routing protocol on the routers in a network. The

command Router(config-router)# no version 2 is entered on the routers. What effect

does entering this command have on routing updates?

Subnet masks will be added to the routing updates.

Routing updates will be sent out using multicast address 224.0.0.9.

Version 1 and 2 updates will be received and the version 2 updates will not be sent.

The RIP routing process will be removed from the router and routing updates will not be

forwarded.

14. How are RIP v1 and RIP v2 similar to one another? (Choose three.)

They both use hop count as a metric.

They both have the same metric value for infinite distance.

They both broadcast their updates to their neighbors.

They both send subnet mask information in their updates.

They both provide for authentication of update sources.

They both use split horizon to prevent routing loops.


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15.

Refer to the exhibit. The exhibited network contains a mixture of Cisco and non-

Cisco routers. The command debug ip rip was entered on the JAX router. All routers

are running the same version of RIP. Router CHI and Router ORL are not able to

reach the 192.168.1.16/28 network. What is a possible solution to this problem?

Enable split horizon in the network.

Configure RIPv2 on routers.

Add network 192.168.1.0 to the RIP configuration on the JAX router.

Configure JAX Fa0/0 as a passive interface.

Enable the Serial0/0/0 interface on the JAX router.

Change the IP address on the Fa0/0 interface of the JAX router to 192.168.1.1/24.

16. What field was added to the RIP message header by RFC 1723 to add support for

VLSM and CIDR?

subnet maskdestination port number

address family identifier

source and destination IP addresses


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17.

Refer to the exhibit. Which command on which router will allow Router1 to

learn about the 192.168.0.0/20 network?

Router1(config)# ip classlessRouter1(config-router)# no passive-interface serial 0/1/1

Router2(config-router)# version 2

Router2(config-router)# neighbor 10.0.0.2

18. Refer to the exhibit. Which two statements are true? (Choose two.)

Router1 will install a route to 192.168.0.0/20




Router2 will not install a route to 192.168.16.0/20

19.

Refer to the exhibit. All routers are running RIP version 2. JAX is configured to

just advertise the 10.0.0.0/24 network. CHI is configured to advertise the 172.16.0.0/16


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network. A network administrator enters the commands shown in the exhibit. What

changes will occur in this network?

The JAX router will ignore updates for the 172.16.0.0/16 network due to split horizon issues.

The CHI router will install a route to the 192.168.0.0/16 network in its routing table.

The routing table for CHI will have the 192.168.0.0/16 route but it will have an S next to

the route.

The ORL router will apply a 255.255.0.0 subnet mask to all networks in the routingupdates it

forwards.

20.

Refer to the exhibit. Which command will allow Router2 to learn about the

192.168.16.0/28 network?

Router1(config)# ip classless

Router1(config-router)# network 192.168.16.0

Router1(config-router)# no passive-interface serial 0/1/1

Router2(config-router)# version 2

Router2(config-router)# neighbor 10.0.0.2
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