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COGNITIVE ASSESSMENT Which is the best description of a coaxial cable?


A) one or more pairs of copper wires bundled together
B) a cohesive cable connected at axis points
C) dozens or hundreds of thin strands of glass or plastic that use light to transmit signals
D) a single copper wire surrounded by at least three layers

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The main differentiation among network classifications is whether they are wired or wireless.

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The type of network shown in the accompanying figure, describes a network in which each computer has equal responsibilities and capabilities. What is this kind of network called? A) file B) P2P C) print D) linked The type of network shown in the accompanying figure, describes a network in which each computer has equal responsibilities and capabilities. What is this kind of network called?


A) file
B) P2P
C) print
D) linked

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COGNITIVE ASSESSMENT You love to take pictures of your family. What standard do you use to print pictures directly from your camera?


A) USB
B) WBA
C) IBW
D) UWB

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COGNITIVE ASSESSMENT About which of the following do privacy advocates worry can destroy a person's anonymity?


A) RFID
B) Bluetooth
C) NFC
D) UWB

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____________________ is a newer network standard developed by IEEE that specifies how wireless devices communicate over the air in a wide area.

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Today, ____________________ is the most popular LAN technology because it is relatively inexpensive and easy to install and maintain.

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Which of the following can be avoided if a computer or mobile device has a motherboard that integrates networking capability?


A) hub
B) packet
C) node
D) NIC

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COGNITIVE ASSESSMENT Which of the following best describes DSL connections?


A) transmits at fast speeds on existing standard copper telephone wiring; popular for small business or home user
B) uses long-distance digital telephone lines to carry multiple signals over a single line; only medium to large companies can afford them
C) uses fiber-optic cable to provide extremely high-speed Internet access to a user's physical, permanent location
D) a service that carries voice, data, video, and multimedia at a high speed; used by telephone networks and the Internet

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How many wired and/or wireless computers and mobile devices might a router be able to connect?


A) more than 200
B) more than 450
C) more than 500
D) There is no limit.

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A

Critical Thinking Questions Case 10-1 You have taken a new job as a network administrator. Although you have been an IT professional within your organization for a number of years, this particular responsibility is a new one for you, so you have been studying network topologies, for example. If you are charged with setting up a network for your team and there is one device whose reliability you are concerned about, which of the following network topologies is a bad idea for you?


A) bus
B) star
C) ring
D) intranet

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Discuss an intranet and include a definition of an extranet.

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Student responses will vary, but should be drawn from the following information from the text. Recognizing the efficiency and power of the Internet, many organizations apply Internet and web technologies to their internal networks. An intranet (intra means within) is an internal network that uses Internet technologies. Intranets generally make company information accessible to employees and facilitate collaboration within an organization. One or more servers on an intranet host an organization's internal webpages, applications, email messages, files, and more. Users locate information, access resources, and update content on an intranet using methods similar to those used on the Internet. The difference is that the host name of the intranet server differs from the host name of the company's public web server (recall that the host name of public web servers often is www). Sometimes a company uses an extranet, which allows customers or suppliers to access part of its intranet. Package shipping companies, for example, allow customers to access their intranet via an extranet to print air bills, schedule pickups, and track shipped packages as the packages travel to their destinations.

A WLAN cannot communicate with a wired LAN.

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____________________ is a set of standards for digital transmission of data over standard copper telephone lines.

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ADSL is ideal for Internet access because most users upload more information than they download from the Internet.

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The design of computers, devices, and media in a network is categorized as either client/server or peer-to-peer. What is the term used to refer to this characterization?


A) network topology
B) network architecture
C) network standard
D) network protocol

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B

Which of the following terms identifies any network based on the 802.11 family of standards?


A) mesh
B) IEEE
C) Wi-Fi
D) FireWire

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Which of the following is a communications device that connects multiple computers together and transmits data to its correct destination on a network?


A) grid
B) multiplexer
C) baseband modem
D) router

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On a ring network, if the hub fails the entire network is inoperable until the hub is repaired.

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The star topology is primarily used for LANs but it is also used in WANs.

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