Wednesday, 25 July 2012

CCNA 2ND MODULE QUESTION & ANS


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
127.0.0.0/8
169.254.0.0/16
172.16.0.0/12
192.168.0.0/16
209.165.201.0/27


2  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.


3  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


4  What is the maximum network diameter permitted by the default metric of RIPv2?
15 hops
16 hops
100 hops
120 hops
255 hops


5  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


6  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.


7  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.

8  What field was added to the RIP message header by RFC 1723 to add support for VLSM and CIDR?
subnet mask
destination port number
address family identifier
source and destination IP addresses

9 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.


10 Which of the following are the address ranges of the private IP addresses? (Choose three.)
10.0.0.0 to 10.255.255.255
200.100.50.0 to 200.100.25.255
150.150.0.0 to 150.150.255.255
172.16.0.0 to 172.31.255.255
192.168.0.0 to 192.168.255.255
127.16.0.0 to 127.31.255.255

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