信息系统复习参考7

Management Information Systems, 12e (Laudon)

Chapter 7 Telecommunications, the Internet, and Wireless Technology

1) Telephone networks are fundamentally different from computer networks. Answer: TRUE Diff: 2 Page Ref: 247 AACSB: Use of IT CASE: Comprehension Objective: 7.1

2) Increasingly, voice, video, and data communications are all based on Internet technology. Answer: TRUE Diff: 1 Page Ref: 247 AACSB: Use of IT CASE: Comprehension Objective: 7.1

3) To create a computer network, you must have at least two computers. Answer: TRUE Diff: 2 Page Ref: 247 AACSB: Use of IT CASE: Comprehension Objective: 7.1

4) An NOS must reside on a dedicated server computer in order to manage a network. Answer: FALSE Diff: 2 Page Ref: 248 AACSB: Use of IT CASE: Comprehension Objective: 7.1

5) A hub is a networking device that connects network components and is used to filter and forward data to specified destinations on the network. Answer: FALSE Diff: 2 Page Ref: 248 AACSB: Use of IT CASE: Comprehension Objective: 7.1

6) In a client/server network, a network server provides every connected client with an address so it can be found by others on the network. Answer: TRUE Diff: 2 Page Ref: 2350 AACSB: Use of IT CASE: Comprehension Objective: 7.1

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7) Central large mainframe computing has largely replaced client/server computing. Answer: FALSE Diff: 2 Page Ref: 250 AACSB: Use of IT CASE: Comprehension Objective: 7.1

8) Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching. Answer: FALSE Diff: 1 Page Ref: 250 AACSB: Use of IT CASE: Comprehension Objective: 7.1

9) A protocol is a standard set of rules and procedures for the control of communications in a network.

Answer: TRUE Diff: 1 Page Ref: 251 AACSB: Use of IT CASE: Comprehension Objective: 7.1

10) Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms. Answer: TRUE Diff: 1 Page Ref: 252 AACSB: Use of IT CASE: Comprehension Objective: 7.1

11) In a ring topology, one station transmits signals, which travel in both directions along a single transmission segment. Answer: FALSE Diff: 3 Page Ref: 254 AACSB: Use of IT CASE: Comprehension Objective: 7.2

12) Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire. Answer: TRUE Diff: 1 Page Ref: 255 AACSB: Use of IT CASE: Comprehension Objective: 7.2

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13) Fiber-optic cable is more expensive and harder to install than wire media. Answer: TRUE Diff: 2 Page Ref: 255 AACSB: Use of IT CASE: Comprehension Objective: 7.2

14) The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes. Answer: FALSE Diff: 2 Page Ref: 257 AACSB: Use of IT CASE: Comprehension Objective: 7.2

15) The Domain Name System (DNS) converts IP addresses to domain names. Answer: TRUE Diff: 3 Page Ref: 258 AACSB: Use of IT CASE: Comprehension Objective: 7.3

16) VoIP technology delivers video information in digital form using packet switching. Answer: TRUE Diff: 1 Page Ref: 264 AACSB: Use of IT CASE: Comprehension Objective: 7.3

17) Web 3.0 is a collaborative effort to add a layer of meaning to the existing Web in order to reduce the amount of human involvement in searching for and processing Web information. Answer: TRUE Diff: 2 Page Ref: 275 AACSB: Reflective Thinking CASE: Comprehension Objective: 7.3

18) Wi-Fi enables users to freely roam from one hotspot to another even if the next hotspot is using different Wi-Fi network services. Answer: FALSE Diff: 3 Page Ref: 278 AACSB: Use of IT CASE: Comprehension Objective: 7.4

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19) WiMax has a wireless access range of up to 31 miles. Answer: TRUE Diff: 3 Page Ref: 279 AACSB: Use of IT CASE: Comprehension Objective: 7.4

20) RFID has been exceptionally popular from the technology's inception because of its low implementation costs. Answer: FALSE Diff: 2 Page Ref: 280 AACSB: Use of IT CASE: Comprehension Objective: 7.5

21) The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n) A) hub. B) switch. C) router. D) NIC. Answer: B Diff: 1 Page Ref: 248 AACSB: Use of IT CASE: Comprehension Objective: 7.1

22) The Internet is based on which three key technologies? 互联网是基于哪三关键技术？ A) tcp/ip、HTML 和 HTTP B) tcp/ip、HTTP 和分组交换

C) 客户端/服务器计算、分组交换和通信标准的开发, 用于连接网络和计算机 D) 客户端/服务器计算、数据包交换和 HTTP A) TCP/IP, HTML, and HTTP

B) TCP/IP, HTTP, and packet switching

C) client/server computing, packet switching, and the development of communications standards for linking networks and computers

D) client/server computing, packet switching, and HTTP Answer: C Diff: 2 Page Ref: 258 AACSB: Use of IT CASE: Comprehension Objective: 7.3

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23) The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called A) multiplexing. B) packet switching. C) packet routing. D) ATM.

将数字信息切片成包裹的方法, 沿不同的通信路径传输它们, 并在其目的地重新组装它们, 称为

A) 多路复用。 B) 分组交换。 C) 数据包路由。 D) ATM 机。 Answer: B Diff: 1 Page Ref: 250 AACSB: Use of IT CASE: Comprehension Objective: 7.3

24) The telephone system is an example of a _ circuit-switched _ network. A) peer-to-peer …… 此处隐藏：4086字，全部文档内容请下载后查看。喜欢就下载吧 ……