When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements?（）A、Bridges are faster than switches because they have fewer ports.B、A switch is a multiport bridge,C、Bridges and swi

题目

When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements?（）

A、Bridges are faster than switches because they have fewer ports.
B、A switch is a multiport bridge,
C、Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.
D、A bridge will forward a broadcast but a switch will not.
E、Bridges and switches increase the size of a collision domain.
F、None of the above statements are true.

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相似问题和答案

第1题：

24． Which of the following is TRUE?

A． When he talks or sings, Jay Chou can both speak clearly．

B． When he sings, Jay Chou can-t speak clearly． When he talks, he can't, either．

C． When he talks, Jay Chou can-t speak clearly． But when he sings, he can．

D． When he sings, Jay Chou can't speak clearly． But when he talks, he can．

正确答案：B
24.B【解析】由第四段第三句可知B为正确选项．

第2题：

________learning merely from the text，this approach has many benefits for thestudents．

A． Comparing to

B． Compared to

C． Comparing with

D． Compared with

正确答案：D
.1.D【解析】this approach与compare之间是被动关系，所以要用过去分词}又因为表示“与……比较”用介词with，故答案为D。

第3题：

When comparing the cost of competing projects, which of the following is typically NOT considered?

A.Opportunity costs.

B.Direct costs.

C.Sunk costs.

D.Indirect costs.

E.Burden rates.

正确答案：C
C

第4题：

__________ he works hard, I don’t mind when he fin

So long as he works hard, I don’t mind when he fin

So long as是“只要""长达...（多用于时间）”等意思

第5题：

When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements? Choose all the valid answer choices)

A. Bridges are faster than switches because they have fewer ports.

B. A switch is a multiport bridge,

C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame. received.

D. A bridge will forward a broadcast but a switch will not.

E. Bridges and switches increase the size of a collision domain.

F. None of the above statements are true.

正确答案：BC
B,C 解析：Explanation:
Both bridges and switches build the bridge table by listening to incoming frames and examining the source MAC address in the frame.

Switches are multiport bridges that allow you to create multiple broadcast domains. Each broadcast domain is like a distinct virtual bridge within a switch.

Incorrect Answers:
A. Switches are generally faster than bridges. Bridges also do not necessarily have fewer ports than switches.

D. Both bridges and switches will forward broadcast and multicast traffic, assuming that the traffic remains in the same VLAN.

E. The use of VLANs in a switch can decrease the size of the collision domain, by creating additional, smaller collision domains.

第6题：

When you are finished with the electric iron, don’t forget_____(关掉它). (turn)

正确答案：
72. to turn it off

第7题：

(b) Ratio analysis in general can be useful in comparing the performance of two companies, but it has its limitations.

Required:

State and briefly explain three factors which can cause accounting ratios to be misleading when used for

such comparison. (6 marks)

正确答案：
(b) (i) One company may have revalued its assets while the other has not.
(ii) Accounting policies and estimation techniques may differ. For example, one company may use higher depreciation rates
than the other.
(iii) The use of historical cost accounting may distort the capital and profit of the two companies in different ways.
Other answers considered on their merits.

第8题：

When the little girl saw her mother out, she() .

A. can’ t help cry

B. can’ t help crying

C. couldn’ t help cry

D. couldn’ t help crying

参考答案：D

第9题：

The cold and dry climate of Antarctica makes it one of the toughest places on Earth to live, and you can see that by contrasting what lives there with what lives in the Arctic.

参考答案：寒冷和干燥的气候使南极洲成为地球上居住条件最恶劣的地方。

第10题：

When comparing DSL broadband to cable broadband, which of the following is an advantage ofDSL broadband?()

A. Upgraded copper lines allow maximum speed greater than cable

B. Signal is not shared back to the switch

C. Signal is shared back to the switch

D. Distance is not a factor in signal speed

参考答案：B

When comparing and contrasting t

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