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Thursday, June 25, 2009

JUNE 2009 Exploration 4.0 (CCNA2) Module 2

CCNA2 - Exploration4.0

1. Which of the following are displayed by the Router# show cdp neighbors command? (Choose three.)
local interface

2. Why is it advisable to enter a next-hop IP address when creating a static route whose exit interface is an Ethernet network?
In a multi-access network, the router cannot determine the next-hop MAC address for the Ethernet frame without a next-hop address.

3. The output of the Router# show interfaces serial 0/1 command displays the following:
Serial0/1 is up, line protocol is down.

4. What is the most likely cause for the line protocol being down?
No clock rate has been set.

5. A static route that points to the next hop IP will have what administrative distance and metric in the routing table?
administrative distance of 1 and metric of 0

6. Refer to the exhibit. What two commands will change the next-hop address for the network from to (Choose two.)
A(config)# no ip route
A(config)# ip route

7. Refer to the exhibit. A company network engineer is assigned to establish connectivity between the two Ethernet networks so that hosts on the subnet can contact hosts on the subnet. The engineer has been told to use only static routing for these company routers. Which set of commands will establish connectivity between the two Ethernet networks?
R1(config)# ip route ip route

8. Refer to the exhibit. Which static route should be configured on Router1 so that host A will be able to reach host B on the network?
ip route S0/0/0

9. What address can be used to summarize networks,,, and

11. Refer to the exhibit. What is the significance of the /8 in the route to the network?
It indicates the number of consecutive bits, from the left, in the destination IP address of a packet that must match to use that route.

12. What two devices are responsible for converting the data from the WAN service provider into a form acceptable by the router? (Choose two).
a modem
a CSU/DSU device

13. A network administrator enters the following command into Router1: ip route S0/1/0. Router1 then receives a packet that is destined for After finding the recently configured static route in the routing table, what does Router1 do next to process the packet?
encapsulates the packet into a frame for the WAN link and forwards the packet out the S0/1/0 interface.

14. Which piece of information is available from examining the output of the command show ip interface brief?
Interface IP address

15. Which of the following is true regarding CDP and the graphic shown?
By default, Router A will receive CDP advertisements from routers B and C.

16. Which two statements describe functions or characteristics of CDP? (Choose two.)
It starts up automatically and allows the device to detect directly connected neighbor devices that use CDP.
It allows systems to learn about each other even if different network layer protocols are configured.

17. Hosts on two separate subnets cannot communicate. The network administrator suspects a missing route in one of the routing tables. Which three commands can be used to help troubleshoot Layer 3 connectivity issues? (Choose three.)
show ip route

18. 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.

19. The routers in the diagram use the subnet assignments shown. What is the most efficient route summary that can be configured on Router3 to advertise the internal networks to the cloud?

20. Refer to the exhibit. How will packets destined to the network be forwarded?
Router1 will perform recursive lookup and packet will exit S0/0.

21. A router has one static route to each destination network. Which two scenarios would require an administrator to alter the static routes that are configured on that router? (Choose two.)
The destination network no longer exists.
A topology change occurs where the existing next-hop address or exit interface is not accessible.

22. Refer to the exhibit. Given the output in the exhibit, how would a clock rate be determined for this link?
The rate configured on the DCE determines the clock rate.

23. Refer to the exhibit. Which set of commands will configure static routes that will allow the WinterPark and the Altamonte routers to deliver packets from each LAN and direct all other traffic to the Internet?
WinterPark(config)# ip route ip route ip route s0/1

24. Refer to the exhibit. What two commands are required to provide connectivity between the and networks without requiring recursive lookup? (Choose two.)
A(config)# ip route s 0/1/0
B(config)# ip route s 0/0/0

updated: OCT 2009
Disclaimer: This questionnaires are just for revision purpose! 

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