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What is the maximum data rate sp

题目

What is the maximum data rate specified for IEEE 802.11b WLANs?（）

  • A、10 Mbps
  • B、11 Mbps
  • C、54 Mbps
  • D、100 Mbps
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相似问题和答案

第1题：

听力原文：M: What about the interest rate?

W: Well, the discount rate is given in accordance with the terms of the bill, time of discount, the amount, the reputation of the drawee and the drawer.

Q: What are they talking about?

(14)

A．The interest rate of savings account.

B．The discounting rate for drafts.

C．The rediscounting rate.

D．The interest rate for loans.


正确答案：B
解析：根据女士的回答，贴现率是根据单据的款项、贴现的时间和数额及出票人和收票人的信誉来定的，由此可知他们谈论的是汇票的贴现率。

第2题：

What is the main reason for dollar's weakness?

A．A series worse-than-expected data were released.

B．German Bundesbank was reluctant to cut rate.

C．Technical factors.

D．All of the above.


正确答案：D
解析：本题在于回答造成美元疲软的主要原因是什么，文中第二段提到the hopes were dashed...cut rate by German Bundesbank。所以D选项符合题意。

第3题：

In the modulation style. of PSK, if a kind of Modem's modulation rate is 3200baud and it's phase is 8, what is the data transfer rate of this kind of Modem ?

A．14.4kbps

B．28.8kbps

C．9600bps

D．3200bps


正确答案：C

第4题：

Which of the following wireless standards has the highest maximum data rate?()

A.802.11n

B.802.11b

C.802.11a

D.802.11g


参考答案：A

第5题：

Which function enforces logical data throughput rates that are below the actual physical line rate of a port?()

A.rate limiting

B.data policing

C.classification

D.bandwidth limiting


参考答案：A

第6题：

Net collectibles gains are taxed at a maximum rate of 28%.()

此题为判断题(对，错)。


答案：正确

第7题：

what is the maximum blood alcohol concertration (BAC) rate on board ?


正确答案：According to the STCW 95 ,the BAC shall not be more than 0.08% by weight any time when being tested ,but the EFR(Code of Federal Regulation )requires the BAC to be no more than 0.04% .watch-keepers ,are not allowed to drink any alcoholic beverage 4 hours berfore their watch .

第8题：

The maximum data rate of any single wireless link can be described by the shannon’s theorem which is related to the（）in hertz，and the（）on the channel

A．signal frequency B．bandwidth C．carrier frequency D．noise frequency A．signal B．caeeier C．noise D．data signal


正确答案：B,C

第9题：

What is the maximum attainable bandwidth using an analog data modem?()

A.28.8kbps

B.56kbps

C.128kbps

D.1544kbps


参考答案：B

第10题：

What is the maximum data rate specified by the IEEE 802.11B standard for wireless LANS?()

A. 10 Mbps

B. 11 Mbps

C. 54 Mbps

D. 100 Mbps

E. none of the above


参考答案：B

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