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For each blank, choose the best answer from the four choices and write down on the answer

sheet.

(71) is a channel's capacity which directly reflects the data transfer rate of the channel.

(72) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information.

(73) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.

(74) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non-periodic basis over a range of media.

Ethernet is the popular LAN developed under the direction of the (75).

A.The delay

B.The volume

C.The noise

D.The bandwidth

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更多“For each blank, choose the bes…”相关的问题
第1题
Directions:There are ten incoaplete sentences in this part.Fill in each blank on the Answer Sheet with the proper form of the words or phrases in parentheses.Take the goods back to your()(retailing)who will refund you the purchase price.
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第2题
SECTION 1Directions: Each sentence below has one or two blanks, each blank indicating that

SECTION 1

Directions: Each sentence below has one or two blanks, each blank indicating that something has been omitted. Beneath the sentence are five lettered or sets of words. Choose the word or set of words for each blank that best fits the meaning of the sentence as a whole.

Griffith's early output was remarkably ______ : it included not only the standard comedies, melodramas, westerns, and thrillers, but also such novelties as adaptations from Browning and Tennyson, and treatments of social issues.

A.controversial

B.original

C.eclectic

D.inventive

E.impulsive

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第3题
2 The risk committee at Southern Continents Company (SCC) met to discuss a report by its r

2 The risk committee at Southern Continents Company (SCC) met to discuss a report by its risk manager, Stephanie

Field. The report focused on a number of risks that applied to a chemicals factory recently acquired by SCC in another

country, Southland. She explained that the new risks related to the security of the factory in Southland in respect of

burglary, to the supply of one of the key raw materials that experienced fluctuations in world supply and also an

environmental risk. The environmental risk, Stephanie explained, was to do with the possibility of poisonous

emissions from the Southland factory.

The SCC chief executive, Choo Wang, who chaired the risk committee, said that the Southland factory was important

to him for two reasons. First, he said it was strategically important to the company. Second, it was important because

his own bonuses depended upon it. He said that because he had personally negotiated the purchase of the Southland

factory, the remunerations committee had included a performance bonus on his salary based on the success of the

Southland investment. He told Stephanie that a performance-related bonus was payable when and if the factory

achieved a certain level of output that Choo considered to be ambitious. ‘I don’t get any bonus at all until we reach

a high level of output from the factory,’ he said. ‘So I don’t care what the risks are, we will have to manage them.’

Stephanie explained that one of her main concerns arose because the employees at the factory in Southland were not

aware of the importance of risk management to SCC. She said that the former owner of the factory paid less attention

to risk issues and so the staff were not as aware of risk as Stephanie would like them to be. ‘I would like to get risk

awareness embedded in the culture at the Southland factory,’ she said.

Choo Wang said that he knew from Stephanie’s report what the risks were, but that he wanted somebody to explain

to him what strategies SCC could use to manage the risks.

Required:

(a) Describe four strategies that can be used to manage risk and identify, with reasons, an appropriate strategy

for each of the three risks mentioned in the case. (12 marks)

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第4题
●In the following essay,each blank has four choices.Choose the best answer and write down
on the answer sheet.

Spread spectrum simply means that data is sent in (66) pieces over a number of the discrete frequencies available for use at any time in the specified range.Devices using (67) spread spectrum(DSSS)communicate by splitting each (68) of data into several parts and sending them concurrently on different (69) ,DSSS uses a lot of the available (70) ,about 22 megahertz(MHz).

(66) A.small

B.high

C.low

D.long

(67) A.direct-sequence

B.discrete-sequence

C.duplicate-sequence

D.dedicate-sequence

(68) A.data

B.byte

C.packet

D.bit

(69) A.bits

B.frequencies

C.packets

D.messages

(70) A.rate

B.velocity

C.bandwidth

D.period

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第5题
根据下面的文字资料回答 71~75 题 In the following essay.each blank has four choices.Choose
the best answer and write down on the answer sheet.

Spread spectrum simply means that data is sent in(1 )pieces over a number of the discrete frequencies available for use at any time in the specified range.Devices using(2 ) spread spectrum(DSSS)communicate by splitting each(3 )of data into several parts and sending them concurrently on different(4 ),DSSS uses a lot of the available(5 ),about 22 megahertz(MHz).

第71题:文中(1 )处正确的答案是()。

A.small

B.high

C.low

D.long

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第6题
In the following essay, each blank has four choices. Choose the most suitable one from the
four choices and write down in the answer sheet.

A socket is basically an end point of a communication link between two applications. Sockets that extend over a network connect two or more applications running on(66)computers attached to the network. A socket(67)two addresses:(68). Sockets provide a(69)communication channel between one or more systems.

There are(70)sockets separately using TCP and UDP.

A.unique

B.separate

C.same

D.dependent

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第7题
In the following essay, each blank has four choices. Choose the best answer and write down
on the answer sheet.In low-speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high-speed networks, this approach often works poorly, because in the(71)between sending the notification and notification arriving at the source, thousands of additional(72)may arrive. In ATM network, a major tool for preventing(73)is(74)control. When a host wants a new virtual(75), it must describe the traffic to be offered and the service expected.

A.interval

B.time

C.slot

D.delay

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第8题
根据下面的文字资料回答 71~75 题In the following essay,each blank has fourchoices.Choose th
e best answer and write down on thean,swer sheet.

Microwave communication uses(1 )frequency radio waves that travel instraighdine sthroughthe air.Because the waves cannot(2 )with the curvature of the earth,they can be (3 )onlyover short distance.Thus,microwave is a good(4 )for sending data between bulldingsin a city or on a large college campus.For longer distances,the waves must berelayed by means of“dishes”or(5 ).These can be installed on towers,highbuildings,and mountain tops.

第71题:文中(1 )处正确的答案是()。

A.high

B.10w

C.1ong

D.short

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第9题
根据下面的文字资料回答 71~75 题 In the following essay,each blank has four choices.Choose
the most suitable one from the four choices and write down in the answer sheet.A(1 )is basically an end point of a communication link between two applications.Sockets that extend over a network connect two or more applications running on separate computer sat tached to the network.Asocket(2 )twoaddresses:(3 ).Sockets providea (4 )communication channel between one or more systems.There are stream and datagram sockets separately using TCP and(5 ).

第6题:文中(1 )处正确的答案是()。

A.program

B.UDP

C.socket

D.TCP

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第10题
●In the following essay,each blank has four choices.Choose the most suitable one from the
four choices and write down in the answer sheet.

A (66) is basically an end point of a communication link between two applications.Sockets that extend over a network connect two or more applications running on separate computers at tached to the network.A socket (67) two addresses: (68) .Sockets provide a (69) communication channel between one or more systems.

There are stream and datagram sockets separately using TCP and (70) .

(66) A.program

B.UDP

C.socket

D.TCP

(67) A.is made of

B.composed of

C.is composed of

D.is consisted of

(68) A.Email address and IP address

B.MAC address and port address

C.MAC address and IP address

D.port number and IP address

(69) A.full-duplex

B.half-duplex

C.simplex

D.complex

(70) A.FTP

B.UDP

C.IP

D.HTTP

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