CCNA 2 Chapter 1 -2014

1. If a router cannot find a valid configuration file during the startup sequence, what will occur?

The router will prompt the user for a response to enter setup mode.

2. Refer to the exhibit. The network administrator has configured the router with the interface IP addresses shown for the directly connected networks. Pings from the router to hosts on the connected networks or pings between router interfaces are not working. What is the most likely problem?

The interfaces must be enabled with the no shutdown command.

3. Refer to the exhibit. What can be concluded from the routing table output in the exhibit? (Choose two.)

The FastEthernet0/0 and Serial0/0/0 interfaces of this router were configured with an IP address and the no shutdown command.

An IP packet received by this router with a destination address of 198.18.9.1 will be forwarded out of the Serial0/0/0 interface.

4. Refer to the exhibit. The frame shown in the exhibit was received by the router. The router interfaces are operational. How will the router process this frame? (Choose two.)

The router will change the frame type to one supported by the WAN link before forwarding the frame.

The frame was received on the Fa0/0 interface of the router and will be switched to the S0/0/0 interface.

CCNA 2 Chapter 2 -2014

1. 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

2. What address can be used to summarize networks 172.16.1.0/24, 172.16.2.0/24, 172.16.3.0/24, and 172.16.4.0/24?

172.16.0.0/21

3. 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?

192.1.1.0/25

4. Refer to the exhibit. What is the significance of the /8 in the route to the 10.0.0.0 network?

It indicates the number of consecutive bits, from the left, in the destination IP address of a packet that must match 10.0.0.0 to use that route.

CCNA 2 Chapter 3 -2014

1. Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.)

Administrative distance refers to the trustworthiness of a particular route.

A router first installs routes with higher administrative distances.

Routes with the smallest metric to a destination indicate the best path.

2. Refer to the exhibit. Which statement correctly describes how R1 will determine the best path to R2?

R1 will install an EIGRP route using network B in its routing table because the administrative distance of EIGRP is lower than RIP.

3. Which two statements are true regarding classless routing protocols? (Choose two.)

 sends subnet mask information in routing updates

allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology

4. Which command would the network administrator issue to determine if load balancing is in effect on a router?

show ip route

CCNA 2 Chapter 4 -2014

1. 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.

Router C will learn of the loss of connectivity to network 114.125.16.0 from RouterB.

2. What does a router running RIP do first with a new route that is received from an advertisement?

adjusts the metric for the new route to show the added distance for the route

3. Refer to the exhibit. If all routers are using RIP, how many rounds of updates will occur before all routers know all networks?

3

4. Which of the following methods does split horizon use to reduce incorrect routing information?

Information learned from one source is not distributed back to that source.

CCNA 2 Chapter 5 -2014

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)# passive-interface fastethernet 0/0

2. Refer to the output from the show ip route command. What can be concluded from the output of this router command?

There are two equal cost paths to network 1.0.0.0.

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?

155 seconds

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

30

CCNA 2 Chapter 6 -2014

1. What two advantages does CIDR provide to a network? (Choose two.)

reduced routing table size

reduced routing update traffic

2. Refer to the exhibit. Which address is a broadcast address for one of the subnets that are shown in the exhibit?

192.168.4.15/29

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

84

4. Which of the following are contained in the routing updates of classless routing protocols? (Choose two.)

32-bit address

subnet mask

CCNA 2 Chapter 7 -2014

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

172.16.0.0/12

192.168.0.0/16

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?

VLSM is not supported by RIPv1.

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 224.0.0.9.

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

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

CCNA 2 Chapter 8 2014

1. Refer to the exhibit. Router B receives a packet with a destination address of 10.16.1.97. What will router B do?

use the default route

2. A network is converged and the routing tables are complete. When a packet needs to be forwarded, what is the first criterion used to determine the best path in the routing table?

the route with the longest address and mask match to the destination

3. Refer to the exhibit. Which statement correctly describes this network?

There is at least one parent and one child route

4. Refer to the exhibit. Router1 has been issued the ip classless command. What happens to packets destined to host 172.16.3.10?

forward out interface Serial0/0/1

CCNA 2 Chapter 9 -2014

1. What two actions will the EIGRP DUAL FSM take if a link to a network goes down? (Choose two.)

query neighbors for a new route

search topology table for a feasible successor

2. Host 192.168.1.66 in the network illustrated is unable to ping host 192.168.1.130. How must EIGRP be configured to enable connectivity between the two hosts? (Choose two.)

R1(config-router)# no auto-summary

R2(config-router)# no auto-summary

3. Refer to the exhibit. The company is using EIGRP with an autonomous system number of 10. Pings between hosts on networks that are connected to router A and those that are connected to router B are successful.

However, users on the 192.168.3.0 network are unable to reach users on the 192.168.1.32 network. What is the most likely cause of this problem?

The routers are not configured in the same EIGRP routing domain.

4. What information is maintained in the EIGRP topology database for a destination route? (Choose three.)

the routing protocol

the feasible distance of the route

the route cost as advertised by the neighboring router

CCNA 2 Chapter 10 -2014

1. What action does a link-state router take immediately upon receipt of an LSP from a neighboring router?

floods the LSP to neighbors

2. Why is it difficult for routing loops to occur in networks that use link-state routing?

Each router builds a complete and synchronized view of the network.

3. Refer to the exhibit. What kind of information would be seen in an LSP sent from router JAX to router ATL?

cost of the link

4. To achieve network convergence, what three steps does each link state router take? (Choose three.)

build a Link State Packet (LSP) containing the state of each directly connected link

flood the LSP to all neighbors, who then store all LSPs received in a database

construct a complete map of the topology and compute the best path to each destination network

CCNA 2 Chapter 11 -2014

1. Refer to the exhibit. All routers are running OSPF. What cost would JAX put in its routing table for the 10.0.0.0/24 network?

1787

2. Refer to the exhibit. Router1 and Router2 are running OSPF. The show ip ospf neighbor command reveals no neighbors. What is a possible cause?

OSPF hello or dead timers do not match.

3. A fully converged five router OSPF network has been running successfully for several weeks. All configurations have been saved and no static routes are used. If one router looses power and reboots, what information will be in its routing table after the configuration file is loaded but before OSPF has converged?

Directly connected networks that are operational will be in the routing table.

4. Refer to the exhibit. What configuration statements would give the results that are shown in the output of the show ip protocols command?

B(config)# router ospf 1

B(config-router)# router-id 192.168.1.5

CCNA 2 Final Exam Answers -2014

1. Which two statements are true for link-state routing protocols? (Choose two.)

Routers that run a link-state protocol can establish a complete topology of the network.

The shortest path first algorithm is used.

2. Refer to the exhibit. RouterA and RouterB cannot successfully exchange EIGRP routes. What is the problem?

The autonomous system numbers do not match.

3. Refer to the exhibit. Based on the partial output in the exhibit, why can users establish a console connection to this router without entering a password?

The login command was not entered on the console line.

4. Refer to the exhibit. The network administrator has run the following command on R1.

R1(config)# ip route 192.168.2.0 255.255.255.0 172.16.1.2

What is the result of running this command?

Traffic for network 192.168.2.0 is forwarded to 172.16.1.2.