Network Services

Saturday, November 16, 2013

Review Questions (Network+ Chapter1)


Review Questions
1. Which of the following are characteristic of a peer-to-peer network? (Choose all that apply.)
A. It has centralized security and administration.
B. A computer can be both a client and a server.
C. A limited number of computers are involved.
D. It does not require a hub.

2. Which cabling standard can send data at up to 10,000Mbps?
A. 10Base-T
B. 100Base-TX
C. 1000Base-TX
D. 10GBase-SR

3. Which of the following are not small form factor fiber connectors? (Choose all that apply.)
A. MT-RJ
B. LC
C. FC
D. SC

4. Which LED on your NIC might save you the most frustration if you start your troubleshooting efforts by monitoring its illumination?
A. Link
B. Activity
C. Collision
D. 10/100

5. Which of the following is a characteristic of a mesh network?
A. It controls cable costs.
B. It offers improved reliability.
C. It is required by fire code.
D. It needs a token to operate.

6. Which of the following are advantages of a star-wired topology? (Choose all that apply.)
A. The star topology uses the least amount of cable.
B. A cable cut between a lone device and its concentrating device affects only the lone device.
C. There is a single point of failure in the central concentrating device.
D. Troubleshooting is simplified compared to the other topologies.

7. Besides the newer high-speed Token Ring, what are the other two standard ring speeds for the Token Ring technology? (Choose all that apply.)
A. 4Mbps
B. 16Mbps
C. 100Mbps
D. 4Gbps

8. Which of the following is a characteristic of a physical mesh topology?
A. It has the most physical connections per device.
B. It is the most common physical LAN topology.
C. Each device has only an inbound port and an outbound port.
D. When one device transmits, all other devices hear the transmission.

9. Which of the following FireWire connectors are for devices that need to be powered from the computer?
A. 4 pin
B. 6 pin
C. 8 pin
D. 10 pin

10. Plenum-rated cable has which of the following characteristics?
A. It has a lower cost than PVC.
B. It meets fire codes for installation in suspended ceilings.
C. It transmits data faster.
D. All the above.

11. Which of the two following cable, connector, length triples meet the specifications for 1000Base-SX and 1000Base-LX?
A. UTP, RJ-45, 100m
B. MMF, LC, 550m
C. SMF, FC, 2000m
D. MMF, SC, 550m

12. Which of the following devices would help your laptop communicate with a mainframe on the same LAN segment?
A. Transceiver
B. Gateway
C. Switch
D. Router

13. Which Ethernet standard is designed to use only two pairs of wires in a UTP cable?
A. 1000Base-CX
B. 100Base-FX
C. 1000Base-T
D. 100Base-TX

14. A transmission technology that divides that transmission medium into discrete channels so that multiple signals can share the same cable is known as ___________________.
A. duplex communications
B. baseband communications
C. sideband communications
D. broadband communications

15. If you need to change the type of media a NIC is able to connect to, which device would you use?
A. Bridge
B. Hub
C. Transceiver
D. All the above

16. An RJ-45 connector should be wired with ____________________ pairs when used on a Category
5e UTP cable.
A. 1
B. 2
C. 4
D. 8

17. 10GBase-SR can be extended to ___________________ meters per segment.
A. 100
B. 200
C. 300
D. 1000

18. Which network component is used in conjunction with a router to provide access to a T1 circuit?
A. Gateway
B. T1 modem
C. CSU/DSU
D. Switch

 19. If you need to protect internal LAN resources from an external threat, which device can help most?
A. Router
B. Firewall
C. Proxy server
D. HTTPS-compatible NIC card

20. Which of the following is a difference between the 100Base-TX and 1000Base-T Ethernet specifications?
A. 1000Base-T is 10 times faster because it uses fiber optics.
B. 100Base-TX requires a minimum of Category 5 UTP, while 1000Base-T must be run over no less than Category 5e UTP.
C. Because it’s slower and more stable, 100Base-TX can be run over longer distances.
D. Although both technologies require the same number of pairs for transmitting and receiving, 1000Base-T uses them differently

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