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CCNA Practice Test - 40

Description: CCNA Practice Test - 40
Number of Questions: 22
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Tags: CCNA Practice Test - 40 CCNA
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Refer to the exhibit. Router1 and Router2 are running OSPF. The show ip ospf neighbor command reveals no neighbors. What is a possible cause?

  1. OSPF autonomous system IDs do not match.

  2. OSPF process IDs do not match.

  3. OSPF network types are identical.

  4. OSPF hello or dead timers do not match.

Show answer
Correct Option: D

When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?

  1. The hosts return to a listen-before-transmit mode.

  2. The hosts creating the collision have priority to send data.

  3. The hosts creating the collision retransmit the last 16 frames.

  4. The hosts extend their delay period to allow for rapid transmission.

Show answer
Correct Option: A

For digital lines, which device is used to establish the communications link between the customer equipment and the local loop?

  1. CSU/DSU

  2. Frame Relay switch

  3. ISDN switch

  4. modem

  5. PBX switch

Show answer
Correct Option: A

What statement best describes a modular switch?

  1. a slim-line chassis

  2. allows interconnection of switches on redundant backplane

  3. defined physical characteristics

  4. flexible characteristics

Show answer
Correct Option: D

What command is used to delete the configuration stored in NVRAM?

  1. erase startup-config

  2. erase running-config

  3. delete nvram

  4. erase nvram

Show answer
Correct Option: A

Given the IP address and subnet mask of 172.16.134.64 255.255.255.224, which of the following would describe this address?

  1. This is a useable host address.

  2. This is a broadcast address.

  3. This is a network address.

  4. This is not a valid address.

Show answer
Correct Option: C

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

  1. Router1(config)# ip classless

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

  3. Router2(config-router)# version 2

  4. Router2(config-router)# neighbor 10.0.0.2

Show answer
Correct Option: C

Refer to the exhibit. Routers R1 and R2 have been configured with EIGRP in the same autonomous system. Computers PC1 and PC2 are not able to ping each other. Further investigation has revealed that the route to 192.168.10.0 is missing from the routing table on R2. What is the cause of the problem?

  1. The networks are not correctly summarized.

  2. The FastEthernet interfaces on R1 are configured as passive.

  3. The network statements on R2 are incorrectly configured.

  4. EIGRP on R1 does not recognize the 192.168.10.0 network.

Show answer
Correct Option: B

What is the purpose of the Spanning Tree algorithm?

  1. It propagates VLAN configurations to other switches.

  2. It restricts broadcast packets to a single VLAN.

  3. It segments a network into multiple broadcast domains.

  4. It prevents loops in a switched network with redundant paths.

Show answer
Correct Option: D

Which packet-switched WAN technology offers high-bandwidth connectivity capable of managing data, voice, and video all on the same infrastructure?

  1. Time Division Multiplexing (TDM)

  2. metro Ethernet

  3. Integrated Services Digital Network (ISDN)

  4. Public Switched Telephone Network (PSTN)

Show answer
Correct Option: B

Refer to the exhibit. How many routes in this output qualify for use as ultimate routes?

  1. 3

  2. 4

  3. 5

  4. 6

  5. 7

Show answer
Correct Option: D

Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem?

  1. The default gateway is in the wrong subnet.

  2. STP has blocked the port that PC1 is connected to.

  3. Port Fa0/2 on S2 is assigned to the wrong VLAN.

  4. S2 has the wrong IP address assigned to the VLAN30 interface.

Show answer
Correct Option: C

What is the first step in the process of convergence in a spanning tree topology?

  1. election of the root bridge

  2. blocking of the non-designated ports

  3. selection of the designated trunk port

  4. determination of the designated port for each segment

Show answer
Correct Option: A

Refer to the exhibit. Switches SW1 and SW2 are interconnected via a trunk link but failed to exchange VLAN information. The network administrator issued the show vtp status command to troubleshoot the problem. On the basis of the provided command output, what could be done to correct the problem?

  1. Switch SW2 must be configured as a VTP client.

  2. The switches must be interconnected via an access link.

  3. The switches must be configured with the same VTP domain name.

  4. Both switches must be configured with the same VTP revision number.

Show answer
Correct Option: C

You are configuring OSPF on a router with three interfaces with the IP addresses listed below. Which of the following network commands would include all three interfaces in the OSPF routing process in a single area? (Choose all that apply)

Ethernet0 - 192.168.1.2 255.255.255.0 Ethernet - 192.168.2.2 255.255.255.0 Serial1 - 172.16.3.2 255.255.255.252

  1. network 0.0.0.0 255.255.255.255 area 0

  2. network 192.168.0.0 0.0.255.255 area 0

  3. network 255.255.255.255 0.0.0.0 area 0

  4. network 192.168.1.2 0.0.0.0 area 0 network 192.168.2.2 0.0.0.0 area 0 network 172.16.3.2 0.0.0.0 area 0

Show answer
Correct Option: A
Explanation:

The correct command sequence for configuring OSPF in a single area configuration is:

router ospf <process-id> network <network address> <wildcard mask> area <area number>

Answer A would include all interfaces on the router, the commands in answer D define them individually per interface.

Refer to the exhibit. Network 192.168.0.0/28 goes down. What type of packet does Router2 immediately send to Router1 and Router3?

  1. a query for network 192.168.0.0/28

  2. an acknowledgment packet to 224.0.0.9

  3. an update packet that is sent to 255.255.255.255

  4. a packet that contains the new routing table for R2

  5. unicast update packets to 192.168.1.1 and 192.168.2.1

Show answer
Correct Option: D

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

  1. It indicates that there are 8 hops between this and the 10.0.0.0 network.

  2. It represents the time, in milliseconds, it takes for a ping to reply when sent to the 10.0.0.0 network.

  3. It indicates that there are 8 subnets in the destination network to which the router can forward packets.

  4. 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.

Show answer
Correct Option: D

A light manufacturing company wishes to replace its DSL service with a non-line-of-sight broadband wireless solution that offers comparable speeds. Which solution should the customer choose?

  1. Wi-Fi

  2. satellite

  3. WiMAX

  4. Metro Ethernet

Show answer
Correct Option: C

Refer to the exhibit. Which statement is true about ACL 110 if ACL 110 is applied in the inbound direction on S0/0/0 of R1?

  1. It will deny TCP traffic to the Internet if the traffic is sourced from the 172.22.10.0/24 network.

  2. It will not allow TCP traffic coming from the Internet to enter the network 172.22.10.0/24.

  3. It will allow any TCP traffic from the Internet to enter the network 172.22.10.0/24.

  4. It will permit any TCP traffic that originated from network 172.22.10.0/24 to return inbound on the S0/0/0 interface.

Show answer
Correct Option: D

A network administrator has moved the company intranet web server from a switch port to a dedicated router interface. How can the administrator determine how this change has affected performance and availability on the company intranet?

  1. Conduct a performance test and compare with the baseline that was established previously.

  2. Determine performance on the intranet by monitoring load times of company web pages from remote sites.

  3. Interview departmental administrative assistants and determine if they think load time for web pages has improved.

  4. Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.

Show answer
Correct Option: A

Which range of port numbers are reserved for services that are commonly used by applications that run on servers?

  1. 0 to 255

  2. 0 to 1023

  3. 1024 to 49151

  4. 49152 to 65535

Show answer
Correct Option: B
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