Contact: admin@chungchimang.tk ========== I'M FIXING THIS BLOG...

CCNA 2 - Module 7: RIPv2

DOWNLOAD SLIDE HERE


Exam Answers v3.x and v4.0

V3.x

Options with "*" are correct answer

1 If the passive interface command is enabled on the fa0/0 interface of Router E, which statements are true? (Choose two.)
Router E will send all routing updates via interface fa0/0.
Router E will ignore all routing updates learned via interface fa0/0.
* Router E will use routing updates learned via interface fa0/0.
* Router E will not send routing updates via interface fa0/0.

2 Which command set will stop the IGRP routing process?
RouterB(config)# router igrp 101
RouterB(config-router)#shutdown
RouterB(config)# router igrp 101
RouterB(config-router)#network no 192.168.2.0
* RouterB(config)# no router igrp 101
RouterB(config)# router no igrp 101

3 According to the router output from the show ip route command shown above, which of the following statements are true? (Choose two.)
The metric to network 192.168.8.0 is 24.
* The hop count to a device on network 192.168.8.0 is 2.
The total path cost to network 192.168.4.0 is the default value of 16.
* The logical address of the next router for network 192.168.1.0 is 192.168.3.1.
The devices on network 192.168.5.0 cannot be reached as indicated by the 'C' label.

4 Which of the following can exist in a distance vector network that has not converged? (Choose three.)
* routing loops
* inconsistent traffic forwarding
no traffic forwarding until system converges
* inconsistent routing table entries
routing table updates sent to wrong destinations

5 Which of the following routes within an autonomous system does not include subnet information?
interior routes
* system routes
border routes
exterior routes

6 The administrator of the network depicted in the graphic would like to decrease the network's convergence time. How can this be accomplished?
disable split horizon on the routers
increase the update interval on the routers
* change the RIP holddown timer to 96 seconds
change the RIP holddown timer to 226 seconds

7 When does RIP send routing table updates? (Choose two.)
* periodically, every 30 seconds
periodically, every 60 seconds
periodically, every 90 seconds
if optionally configured, when topology changes occur (triggered-update) *

8 The graphic shows a network that is configured to use RIP routing protocol. Router2 detects that the link to Router1 has gone down. It then advertises the network for this link with a hop count metric of 16. Which routing loop prevention mechanism is in effect?
split horizon
error condition
hold-down timer
* route poisoning
count to infinity

9 The following line was displayed in the output of the show ip route command:
192.168.3.0/24 [100/80135] via 192.168.2.2, 00:00:30, Serial0/0
Based on this information, which routing protocol is enabled?
IP
RIP
* IGRP
IGP
OSPF

10 The following line was displayed in the output of the show ip route command:
192.168.3.0/24 [100/80135] via 192.168.2.2, 00:00:30, Serial0/0
What is the administrative distance of the routing protocol enabled?
30
80
* 100
135
80135

11 What actions will occur after RouterA loses connectivity to network 114.125.16.0? (Choose two.)
* RouterB will include network 123.92.76.0 and 136.125.85.0 in its update to RouterA.
During the next update interval, RouterB will send a RIP update out both ports that includes the inaccessible network.
During the next update interval, RouterC will send an update to RouterB stating that network 114.125.16.0 is accessible in 2 hops.
* Router C will learn of the loss of connectivity to network 114.125.16.0 from RouterB.
RouterB will include network 123.92.76.0 and 136.125.85.0 in its update to RouterC.

12 Which of the following is a correct IGRP configuration for the routers shown in the network diagram?

RouterA(config)# router igrp
RouterA(config-router)# network 192.168.0.0

RouterB(config)# router igrp 101
RouterB(config-router)# network 192.168.0.0

* RouterA(config)# router igrp 45
RouterA(config-router)# network 192.168.1.0
RouterA(config-router)# network 192.168.2.0

RouterB(config)# router igrp 1
RouterB(config-router)# network 192.168.1.0
RouterB(config-router)# network 192.168.2.0

RouterA(config)# router igrp 1
RouterA(config-router)# network 192.168.2.0
RouterA(config-router)# network 192.168.3.0

RouterB(config)# router igrp 45
RouterB(config-router)# network 192.168.1.0
RouterB(config-router)# network 192.168.2.0

13 What do distance vector algorithms require each router in the network to send?
a partial routing table to each router in the LAN
a partial routing table to each router in the WAN
* the entire routing table to each neighboring router
the entire routing table to each router in the autonomous system

14 What happens to a static route entry in a routing table when the outgoing interface is not available?
* The route is removed from the table.
The router polls neighbors for a replacement route.
The route remains in the table because it was defined as static.
The router redirects the static route to compensate for the loss of the next hop device.

15 When a routing table update is received by a router in a distance vector network, which of the following occurs?
* The hop count metrics for the enclosed routes are incremented.
The update is forwarded to the gateway router for verification.
Path entries are checked for routing loops.
The hop count metrics for the enclosed routes are decremented.
Static routes are updated with the new information.

16 Refer to the graphic. Assuming default settings are configured, which routing protocol has been configured on the router?
OSPF
RIP
* IGRP
BGP
Static

17 Which statements describe RIP? (Choose three.)
The maximum metric value is 255 hops.
* The maximum metric value is 15 hops.
* Routing updates occur every 30 seconds.
Routing updates occur every 90 seconds.
* It is a distance vector routing protocol.
It is a link state routing protocol.

18 When does a distance vector routing protocol set a hold-down timer on a route?
when the metric value of the route decreases
* when the route is marked as inaccessible
when the metric value for the route improves
when a regular update is received from a neighboring router

19 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

20 Which of the following methods does split horizon use to reduce incorrect routing information?
Routing updates are split in half to reduce the update time.
* Information learned from one source is not distributed back to that source.
New route information must be learned from multiple sources to be accepted.
The time between updates is split in half to speed convergence.
New route information is suppressed until the system has converged.

21 The command show ip protocols was just issued and the following line was displayed in the output:
Gateway 192.168.2.1 Distance 100 Last Update 00:00:54
When should the next routing table update be received assuming the configuration uses default values?
6 seconds
24 seconds
30 seconds
* 36 seconds
90 seconds

22 A router has several classful networks in its routing table. If the router receives packets for a subnet that is not in its routing table and the ip classless command is disabled but a default route is defined, what will happen to the packets?
The packets will be forwarded using the default route.
The packets will be forwarded using a route for one of the major networks.
A nonreachable message will be returned to the source.
* The packets will be discarded.
A default route will be developed by the router.

23 Which statements describe load balancing when RIP is configured as the routing protocol? (Choose two.)
* A router is allowed to take advantage of multiple best paths to a given destination.
* RIP uses the round robin approach in load balancing.
RIP load balancing selects a single path to forward all data to the destination even though equal parallel paths exist.
RIP load balancing is based on bandwidth first and then the hop count.
Only one path to a destination can be statically assigned or dynamically calculated.

24 Which of the following functions are performed by a router as routing information travels through the network? (Choose two.)
advertise supported applications
* identify new destinations
calculate packet speed
verify network scalability
* identify invalid networks

25 Which of the following would be the correct command sequence to enable RIP on Router B for all connected networks?
1)RouterB# router rip
RouterB(router)# network 210.36.7.0
RouterB(router)# network 220.17.29.0
RouterB(router)# network 211.168.74.0

2)RouterB(config)# router rip
RouterB(config-router)# network 198.16.4.0
RouterB(config-router)# network 211.168.74.0
RouterB(config-router)# network 199.84.32.0

3)RouterB(config)# configure router rip
RouterB(config-router)# network 210.36.7.0
RouterB(config-router)# network 199.84.32.0
RouterB(config-router)# network 211.168.74.0

4)RouterB(config)# router rip
RouterB(config-router)# network 198.16.4.0
RouterB(config-router)# network 210.36.7.0
RouterB(config-router)# network 211.168.74.0

* 5)RouterB(config)# router rip
RouterB(config-router)# network 198.16.4.0
RouterB(config-router)# network 210.36.7.0
RouterB(config-router)# network 220.17.29.0

26 How would an administrator configure a static route for use if a primary route failed?
configure the route with a metric greater than the default value
configure the route and the router will activate it as needed
configure the route to activate by using the redistribute static command
* configure the route with an administrative distance greater than the default value

==============================

V4.0

Options with highlight colours are correct answer

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.)

o 10.0.0.0/8

o 127.0.0.0/8

o 169.254.0.0/16

o 172.16.0.0/12

o 192.168.0.0/16

o 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?

o A gateway of last resort is required.

o Subnetting is not supported by RIPv1.

o VLSM is not supported by RIPv1.

o 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?

o Only version 2 updates are sent to 255.255.255.255.

o Only version 2 updates are sent to 224.0.0.9.

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

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

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

o The routing table is limited to 2 routes.

o The LAN interfaces are participating in the routing process.

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

o 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.)

o RIP version 2 supports VLSM.

o RIP version 2 supports more than 16 routers.

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

o RIP version 2 supports routing update authentication.

o RIP version 2 supports multi-areas.

o 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?

o The network statements are configured incorrectly.

o A routing loop has been created.

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

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

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?

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

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

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

o 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?

o The router does not allow loopback interface configurations.

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

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

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

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

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

o 15 hops

o 16 hops

o 100 hops

o 120 hops

o 255 hops

10. What are two functions of the network command used when configuring routing protocols? (Choose two.)

o identifies which networks will be included in the routing updates

o identifies the hosts addresses that can be summarized in the network

o used to list all addresses for remote and local networks

o determines which subnet mask to apply to routing updates

o 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?

o Routes to the 10.16.1.0/27, 10.16.1.64/27, and 10.16.1.128/27 networks are added.

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

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

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

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?

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

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

o Rip version 2 will auto summarize routes by default.

o 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?

o Subnet masks will be added to the routing updates.

o Routing updates will be sent out using multicast address 224.0.0.9.

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

o 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.)

o They both use hop count as a metric.

o They both have the same metric value for infinite distance.

o They both broadcast their updates to their neighbors.

o They both send subnet mask information in their updates.

o They both provide for authentication of update sources.

o They both use split horizon to prevent routing loops.

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?

o Enable split horizon in the network.

o Configure RIPv2 on routers.

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

o Configure JAX Fa0/0 as a passive interface.

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

o 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?

o subnet mask

o destination port number

o address family identifier

o source and destination IP addresses

17. Refer to the exhibit. Which command on which router will allow Router1 to learn about the 192.168.0.0/20 network?

o Router1(config)# ip classless

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

o Router2(config-router)# version 2

o Router2(config-router)# neighbor 10.0.0.2

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

o Router1 will install a route to 192.168.0.0/20

o Router1 will install a route to 192.168.0.0/24

o Router1 will install a route to 192.168.16.0/24

o Router2 will install a route to 192.168.16.0/24

o 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 network. A network administrator enters the commands shown in the exhibit. What changes will occur in this network?

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

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

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

o The ORL router will apply a 255.255.0.0 subnet mask to all networks in the routing updates it forwards.

20. Refer to the exhibit. Which command will allow Router2 to learn about the 192.168.16.0/28 network?

o Router1(config)# ip classless

o Router1(config-router)# network 192.168.16.0

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

o Router2(config-router)# version 2

o Router2(config-router)# neighbor 10.0.0.2

No comments:

Post a Comment

Thank for your comments!!!