Networking Final

10 Questions | By Jtrotta914 | Last updated: Dec 14, 2012

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Questions and Answers

1.

Refer to the exhibit. Host B attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured at the FastEthernet interface fa0/1 of the San Francisco router. The packet inside the captured frame has the source IP address 10.10.1.2, and the destination IP address is 10.31.1.20. What is the destination MAC address of the frame at the time of capture?

Discuss
- A.
  
  0060.7320.D632
- B.
  
  0060.7320.D631
- C.
  
  0040.8517.44C3
- D.
  
  0009.B2E4.EE03
- E.
  
  0010.C2B4.3421
2.

Refer to the exhibit. Host A wants to access the Internet. Which combination of a Layer 2 address and a Layer 3 address will enable this access from host A?

Discuss
- A.
  
  Destination MAC: 0030.8596.DE83 Default gateway: 209.165.202.130
- B.
  
  Destination MAC: 0030.8596.DE82 Default gateway: 172.16.9.2
- C.
  
  Destination MAC: 0030.8517.44C4 Default gateway: 172.16.1.1
- D.
  
  Destination MAC: 0030.8517.44C4 Default gateway: 209.165.202.130
3.

What are three characteristics of CSMA/CD? (Choose three.)• It monitors the media for presence of a data signal.• After detecting a collision, hosts can resume transmission after a random timer has expired.• A jam signal is used to ensure that all hosts are aware that a collision has occurred.• Devices can be configured with a higher transmission priority.• Data is transmitted only when the data signal is present.• It uses a token system to avoid collisions.

Discuss
- A.
  
  • It monitors the media for presence of a data signal.
- B.
  
  • After detecting a collision, hosts can resume transmission after a random timer has expired.
- C.
  
  • A jam signal is used to ensure that all hosts are aware that a collision has occurred.
- D.
  
  • Data is transmitted only when the data signal is present.
- E.
  
  • It uses a token system to avoid collisions.
4.

Refer to the exhibit. Host A wants to access the Internet. Which combination of a Layer 2 address and a Layer 3 address will enable this access from host A?
- A.
  
  Destination MAC: 0030.8596.DE83 Default gateway: 209.165.202.130
- B.
  
  Destination MAC: 0030.8596.DE82 Default gateway: 172.16.9.2
- C.
  
  Destination MAC: 0030.8517.44C4 Default gateway: 172.16.1.1
- D.
  
  Destination MAC: 0030.8517.44C4 Default gateway: 209.165.202.130
5.

Refer to the exhibit. Communication between hosts X and Y is restricted to the local network. What is the reason for this?
- A.
  
  • The gateway addresses are broadcast addresses.
- B.
  
  • Host Y is assigned a multicast address
- C.
  
  • Host X and host Y belong to different networks.
- D.
  
  • Host X is assigned a network address.
6.

Refer to the exhibit. Which logical topology describes the exhibited network?
- A.
  
  Star
- B.
  
  Ring
- C.
  
  Point-to-point
- D.
  
  Multi-access
7.

Refer to the exhibit. PC1 is unable to access PC2. To troubleshoot this problem, the technician needs to confirm that the next hop interface is operational. Which default gateway address should the technician ping from PC1 to confirm this?
- A.
  
  10.0.0.254
- B.
  
  192.168.0.249
- C.
  
  192.168.0.250
- D.
  
  10.0.1.254
8.

Refer to the exhibit. Cable 1 and Cable 2 are wired for specific physical layer requirements. Which three segments use Cable 2? (Choose three.)
- A.
  
  6
- B.
  
  2
- C.
  
  3
- D.
  
  4
- E.
  
  5
9.

Refer to the exhibit. Which two facts can be determined about the topology? (Choose two.)• Three networks are needed.• Two logical address ranges are required.• A single broadcast domain is present.• Three collision domains are present.• Four networks are needed.

Discuss
- A.
  
  Three networks are needed.
- B.
  
  Two logical address ranges are required
- C.
  
  A single broadcast domain is present.
- D.
  
  Three collision domains are present.
- E.
  
  Four networks are needed.
10.

• The assigned address is a private address.• The PC cannot communicate with the DNS server.• The network can have 126 hosts.• The prefix of the computer address is /26.• The IP address is routable on the Internet.

Discuss
- A.
  
  The assigned address is a private address
- B.
  
  The PC cannot communicate with the DNS server.
- C.
  
  The network can have 126 hosts.
- D.
  
  The prefix of the computer address is /26.
- E.
  
  The IP address is routable on the Internet.

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