单选题Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) . It is a ( ) information transfer mode.A connection orientedB connectionlessC high

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单选题

Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) . It is a ( ) information transfer mode.

connection oriented

connectionless

high bandwidth utilization

poor real-time

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相似问题和答案

第1题：

LTE多天线技术中的MIMO用于小区『____』，BF用于小区『____』。(The MIMO technology is used in『____』of cell,and Beamforming technology is used in『____』of cell.)

参考答案：中心
边缘
center
edge

第2题：

The_______ will be used to help young writers to publish their works.

A、fee

B、capital

C、fund

D、investment

参考答案：C

第3题：

Now a lot of new technology developed by scientists will be_____improving the quality of rice and wheat.

A、used to.

B、applied to.

C、suited to.

D、accustomed to.

参考答案：B

第4题：

Which message type is used to initiate an RSVP－TE label switched path?()

A.A

B.B

C.C

D.D

参考答案：A

第5题：

The methods used in Asynchronous Transfer Mode (ATM)are switch technology and(17)is used to describe this mode.

A．cell exchange

B．message exchange

C．information exchange

D．packet exchange

正确答案：A

第6题：

there may be a need for retraining if you explorer____new technology.

A)using

B)use

C)to use

D)used

参考答案：C

第7题：

I used to _______ on electricity, but I’ve switched to gas.

A、cook

B、cooking

C、cooked

D、cooks

参考答案：A

第8题：

In John Whitehead's opinion, which statement is true?

A．Face recognition technology may interfere with people's privacy.

B．Face recognition technology may enhance the country's constant surveillance.

C．Face recognition technology can be used in the same way wiretaps are used.

D．Face recognition technology can be used after its threat has been removed.

正确答案：A
解析：文章最后一段最后一句话“After all，that is exactly what constant surveillance is—the ultimate implied threat of coercion．”这是约翰博士的观点，这项技术威胁到美国每个公民参与社会的权利。所以A、“会干扰人们的隐私”，是正确答案。

第9题：

whether to go with a shared or switched fast LAN technology once you start to max out your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in(101)high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and(102)which fast LAN technology to choose is critical for(103)network performance problems and(104)costly purchasing mistakes.

A．avoiding

B．clipping

C．choosing

D．deciding

E．dissolving

正确答案：D

第10题：

Which of the following protocols is commonly used for VoIP technology?()

A.Telnet

B.SMTP

C.SIP

D.SNMP

参考答案：C

Circuit-switching technology is used in Publish Switched Tel

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