Chapter 10

As shown in the accompanying figure, what is the term for a network that covers a large geographic area, such as a city, country, or the world, using a variety of wired and wireless transmission media?

wide area network (WAN)

Which of the following is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network?

wireless access point

How many feet can the range of Bluetooth devices be extended with additional equipment?

325

Which of the following is a transmission media on which data, instructions, or information travel?

Communications channel

On a network such as the one illustrated in the accompanying figure, some servers perform a specific task and can be placed with other servers to perform multiple tasks. What are these kind of servers call?

Dedicated

Which of the following is true of broadcast radio with regard to physical transmission media?

It is slower and more susceptible to noise.

Which of the following is the data transfer rate equivalent to one million bits per second?

Mbps

Which of the following defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology?

NFC

Which of the following enables a computer or device that does not have built-in networking capability to access a network?

NIC

Which of the following is the greatest problem with regard to a bus network?

The bus itself might become inoperable.

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

WIFI

Which of the following is a LAN that uses no physical wires?

WLAN

Which of the following has the fastest transfer rate?

atm

For best performance of a communications channel, which of the following should be true?

bandwidth should be high and latency low

Which of the following kinds of modems is a modem that sends and receives digital data over and information to and from a digital line?

broadband

Which of the following is a network standard that specifies no central computer or device on the network should control when data can be transmitted?

ethernet

On a network such as the one illustrated in the accompanying figure, what kind of computer controls access to the hardware, software, and other resources on the network and provides a centralized storage area for programs, data, and information?

host

Which of the following terms is the time it takes a signal to travel from one location to another on a network?

latency

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?

network archetcture

Which of the following defines guidelines that specify the way computers access the medium to which they are attached, the type(s) of medium used, the speeds used on different types of networks, and the type(s) of physical cable and/or the wireless technology used?

network standard

Which of the following terms is an electrical disturbance that can degrade communications?

noise

On a network such as the one illustrated in the accompanying figure, if one node fails, as long as that node is not providing services to other nodes on the network, what happens?

only that node is affected

Which of the following is a simple, inexpensive network that typically connects fewer than 10 computers?

peer to peer network

As shown in the accompanying figure, which of the following kinds of networks is a network topology in which a cable forms a closed loop, with all computers and devices arranged along it?

ring

For smaller business and home networks, which of the following allows multiple computers to share a single broadband Internet connection such as through a cable modem or DSL modem?

router