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Which of the following correctly describe the various functi

题目
多选题
Which of the following correctly describe the various functions and virtues of a router?（）
A

Packet switching

B

Collision prevention on a LAN segment.

C

Packet filtering

D

Broadcast domain enlargement

E

Broadcast forwarding

F

Internetwork communication

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相似问题和答案

第1题：

Which of the following word does not describe a color?

A、green

B、white

C、flower

D、orange


参考答案：C

第2题：

The following terms describe various design options for Enterprise connectivity to the Internet.Which of the follow ing imply that the Enterprise connects to two or more ISPs?()

A. Single Homed

B. Dual Homed

C. Single Multihomed

D. Dual Multihomed


参考答案：C, D

第3题：

Which of the following words can best describe the ending of the story?

A. Disappointing.

B. Unexpected.

C. Uncertain.

D. Inspiring.


正确答案：B

第4题：

Which of the following best describe Mr.Bouvier?__________

A.Stubborn and determined
B.Generous and kindhearted
C.Smart and knowledgeable
D.Positive and optimistic

答案：B
解析：
根据文章第五段“People are applauding the teen’s work ethic and Bouvier’sgenerosity．"和第六段“So kindness does exist．Warms my heart!”，可知，Mr．Bouvier是个慷慨热心的人。

第5题：

After replacing the NIC card of a PC on the LAN, your Cisco switch shows a new MAC address is attached to that port. Which of the following answer choices below correctly describe a MAC address?()

A. It is a globally unique IP address.

B. It is a globally unique 48 bit address

C. It is provided by the manufacturer of the NIC.

D. It is used as part of the IPX/SPX configuration.

E. It is a logical address.


参考答案：B, C

第6题：

Which of the following correctly describe the various functions and virtues of a router? (Select all valid answer choices)

A. Packet switching

B. Collision prevention on a LAN segment.

C. Packet filtering

D. Broadcast domain enlargement

E. Broadcast forwarding

F. Internetwork communication

G. None of the above


正确答案：ACF
A,C,F 解析：Explanation:
The main function of a router is to connect different, separated networks together. In doing so, switching packets from one network to another is a primary function, along with providing for communication between networks. As an additional feature, routers are capable of providing filtering on a network address and application port level, so choice C is also correct.

Incorrect Answers:
B. Routers can indeed be used to segment a network separate a collision domain, since routers do not forward LAN broadcasts and multicasts to other interfaces. However, routers alone can not prevent all collisions from occurring on any given LAN segment.

D. Routers actually segment LANs into smaller broadcast domains.

E. Routers do not forward broadcast and multicast traffic out the additional interfaces by default. Unless bridging or IP helpers are configured on the router, LAN broadcasts are blocked at the router level.

第7题：

Which of the following correctly describe characteristics of PPP?()

A. Encapsulates several different types of routing protocols.

B. Supports only IP.

C. Can be used over analog circuits.

D. Is proprietary to Cisco

E. Supports error correction.


参考答案：A, C, E

第8题：

You need to describe the various types of flow control to your co-workers. Which of the following are types of flow control that can be used in a network? (Choose three)

A. Congestion avoidance

B. Windowing

C. Cut-through

D. Buffering

E. Load Balacing

F. Fast Forward


正确答案：ABD
A,B,D

第9题：

Cross curves of stability show which of the following？

A.The righting arms at various angles of inclination and displacement

B.The metacentric height at large angles of heel

C.The height of the center of buoyancy at various angles

D.The metacentric radius at various displacements


正确答案：A

第10题：

After replacing the NIC card of a PC on the LAN, your Cisco switch shows a new MAC address is attached to that port. Which of the following answer choices below correctly describe a MAC address?（）

  • A、It is a globally unique IP address.
  • B、It is a globally unique 48 bit address
  • C、It is provided by the manufacturer of the NIC.
  • D、It is used as part of the IPX/SPX configuration.
  • E、It is a logical address.

正确答案:B,C

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