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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参考答案和解析
正确答案:B,C
更多“When comparing and contrasting t”相关问题

  • 第1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2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3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4题：

    You ______ cross the road when the traffic lights are red. It’s dangerous. 学科网 A. n

    You ______ cross the road when the traffic lights are red. It’s dangerous.

    A. needn’t B. may not C. mustn’t


    正确答案：C

  • 第5题：

    The most accurate method of determining gyrocompass error while underway is by ______．

    A.Comparing the gyro azimuth of a celestial body with the computed azimuth of the body

    B.Comparing the gyro heading with the magnetic compass heading

    C.Determining from the chart the course made good between celestial fixes

    D.It cannot be determined accurately at sea due to drift of unknown currents


    正确答案：A

  • 第6题：

    When we were young, we ___________ to stay out after 11 o′ clock.

    A.hadn't allowed
    B.didn't allow
    C.weren't allowed
    D.wouldn't allow

    答案：C
    解析：
    考查allow的被动语态。句意为“小的时候，我们不被允许晚上在外面待到十一点之后”。 allow的意思是“允许，许可”，根据句意这里应该用其被动语态的否定形式：be not allowed to do sth．“某人不被允许做某事”。故C正确。

  • 第7题：

    Which two statements are true about bandwidth guarantee？（）

    • A、When congestion is present，the priority command doesn’t allow exceeding the allocated rate
    • B、When congestion isn’t present，the priority command doesn’t allow exceeding the allocated rate
    • C、When congestion is present，the priority command allows exceeding the allocated rate
    • D、When congestion isn’t present，the priority command allows exceeding the allocated rate

    正确答案:A,D

  • 第8题：

    When comparing analog display inputs to digital display inputs, which of the following is anadvantage that digital has over analog?（）

    • A、Allows for higher brightness
    • B、More crosstalk
    • C、Sustains higher resolutions
    • D、Supports widescreen resolutions

    正确答案:C

  • 第9题：

    单选题
    Which of the following features is an IBM advantage when comparing the Oracle/Storage TekVirtual Storage Manager (VSM) to the IBM Virtualization Engine TS7700 (VTS)?（）
    A

    throughput 

    B

    automatic tape reclamation 

    C

    3490E tape volume emulation 

    D

    disk and tape (physical) storage included in same frame


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    I don’t know（）.
    A

    when will our ship sail

    B

    will when our ship sail

    C

    when our ship will sail

    D

    will our ship when sail


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    Which of the italicized parts functions as an attribute（定语）?
    A

    I don’t know when the plane takes off.

    B

    He was on the point of leaving when someone knocked at the door.

    C

    I still remember the day when I first met Jennifer.

    D

    I have no idea when the game will begin.


    正确答案： A
    解析：
    考查斜体部分在句中所做的句子成分。A选项中的斜体部分在句中做宾语；B选项中的斜体部分在句中做状语；C选项中的斜体部分在句中做定语；D选项中的斜体部分在句中做同位语；故选C。

  • 第12题：

    单选题
    When comparing different fuels for different engines, the ignition quality of diesel fuel oils becomes a less critical consideration as （）
    A

    the amount of lube oil additives increase

    B

    piston speeds increase

    C

    injection pressure decrease

    D

    engine speeds decrease


    正确答案： D
    解析： 暂无解析

  • 第13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14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15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

  • 第16题：

    When you're _t_________ ,you should have some water．


    正确答案：
    32. thirsty

  • 第17题：

    （ ）with the size of the whole earth,the highest mountain does not high at all.

    A.When compared
    B.Compare
    C.While comparing
    D.Comparing

    答案：A
    解析：
    该题考查非谓语动词。其中句子主语为the highest mountain,它与the size of the whole earth之间的比较应该是被动关系,所以答案为A。该句可转换为When the highest mountain is compared with the size of the whole earth,it does not seem high at all。

  • 第18题：

    It( )we had stayed together for a couple of weeks( )I found we had a lot in common.

    A.was until；when
    B.was until；that
    C.wasn’t；when
    D.wasn’t until；that

    答案：D
    解析：
    考查强调句型。强调句糅合了not ...until 的结构，强调的部分是we had stayed together for a couple of weeks，后面填that。故本题选D。句意：我们在一起待了几周，我才发现我们有很多相同之处。

  • 第19题：

    相对性状（contrasting character）


    正确答案: 不同个体在单位性状上常有着各种不同的表现。遗传学中把同一单位性状的相对差异，称为相对性状。

  • 第20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

    正确答案:B

  • 第21题：

    单选题
    Which statement is TRUE when comparing cold and warm fronts?（）
    A

    Cold fronts are more violent and of shorter duration

    B

    Cold fronts are milder and last longer

    C

    They are very similar with the exception of wind direction

    D

    Warm fronts are more violent and of longer duration


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    I hope, when you have finished this exercise, you _____ many mistakes in it.
    A

    won’t make

    B

    won’t have made

    C

    won’t be making

    D

    won’t have been making


    正确答案： B
    解析：
    句意：我希望你在做完这个练习时不会出现太多的错误。本题从句的时态是现在完成时，结合句意判断，主句的动作应在从句表达的动作结束前完成，只有B项的将来完成时较恰当。D项将来完成进行时，表示这个动作还要继续下去，与题意不符。

  • 第23题：

    单选题
    When comparing the air with 50% of relative humidity with the air with 100% of relative humidity, which one will hold more water?（）
    A

    the former

    B

    the latter

    C

    not for sure

    D

    same each other


    正确答案： C
    解析： 暂无解析

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