Chapters 23-26 Quiz

The term DSL stands for this. a. Digital Subscriber Line b. Digital Subscriber Link c. Digital Subscription Line d. Digital Subscription Link

A. Digital Subscriber Line

Most telephones are this. a. analog-based b. digital-based c. leased line d. radio-telephone

A. analog-based

A modem's speed is measured in ____. a. bits per second b. bytes per second c. bits per minute d. bytes per second

A. bits per second

Large businesses usually use this kind of network. a. client/server network b. client/workstation network c. peer-to-peer network d. time sharing network

A. client/server network

Computers communicate via wireless ____. a. networks b. phones c. cells d. lines

A. networks

What does POS stand for? a. point-of-sale b. postal operating system c. peripheral office standard d. none of the above

A. point-of-sale

This sets a standard format for data and rules for handling it. a. protocol b. language c. network interface card d. network medium

A. protocol

This type of network is usually small, made up of two to ten computers. a. peer-to-peer network b. local area network c. time sharing system d. workstation network

A.peer-to-peer network

What does the term PSTN stand for? a. Private Switched Telephone Network b. Public Switched Telephone Network c. Personal Switched Telephone Network d. Passively Switched Telephone Network

B. Public Switched Telephone Network

This can be used to link together LANs in different cities. a. hub b. WAN c. file server d. NIC

B. WAN

Companies can protect WAN by _____. a. adding more LANs b. adding more high-speed lines c. groupware d. protecting LANS

B. adding more high-speed lines

This is a high-speed line that carries data through a network. a. POP b. backbone c. intranet d. Internet

B. backbone

Printers are examples of this type of device. a. workstation b. peripheral c. medium d. terminal

B. peripheral

Cell phones transmit messages by using? a. twisted pair wire b. radio signals c. infrared light d. none of the above

B. radio signals

Cellular phones use this to communicate. a. infrared signals b. radio waves c. lasers d. wires

B. radio waves

The OSI has _____ layers. a. six b. seven c. three d. five

B. seven

This is the most common topology used in LANs today. a. ring b. star bus c. star d. mesh

B. star bus

Sending information over a telephone network is called ____. a. calling b. telecommunications c. networking d. faxing

B. telecommunications

When you place a cellular call, the MTSO selects a frequency and a ____. a. network b. tower c. phone d. line

B. tower

What does the term DBS stand for? a. Digital Broadcast Satellite b. Dialup Broadcast Satellite c. Direct Broadcast Satellite d. Data Broadcast Satellite

C. Direct Broadcast Satellite

What does the term MTSO stand for? a. Mobile Telephone Sending Office b. Mobil Telephone Serving Office c. Mobile Telephone Switching Office d. none of the above

C. Mobile Telephone Switching Office

This is a small, highly portable handheld computer. a. cell phone b. MTSO c. PDA d. none of the above

C. PDA

This allows an MTSO to interact with a long-distance provider. a. cell site b. PDA c. leased line d. radiotelephone

C. leased line

The science of designing a network is called _____. a. topology b. hub topology c. network architecture d. network science

C. network architecture

When someone calls your cell phone, the cellular service provider locates the phone by _____.

Cell

What does OSI stand for? a. Open Source Infor-mation b. Open Standards Inter-national c. Open Systems Inter-face d. Open Systems Inter-connection

D. Open Systems Inter-connection

How many users can LAN have? a. 10 b.several dozen c. several hundred d. any of the above

D. any of the above

Which of the following can be shared over a computer network? a. files b. programs c. printers d. any of the above

D. any of the above

What does CTI stand for? a. computer telephone integration b. computers telephones integration c. computerized tele-phone integration d. computer telephony integration

D. computer telephony integration

All the computers on a network must ____. a. use the same hard-ware b. speak the same language c. run the same way d. none of the above

D. none of the above

This type of device allows users to participate in a time sharing system. a. computer b. workstation c. network d. terminal

D. terminal

This is what the network's layout is called. a. packet transmission b. network layer c. OSI d. topology

D. topology

Which of the following is a drawback to mesh topology? a. cross connections b. used in Internet c. multiple paths d. very expensive

D. very expensive

A telephone company's common network, or local loop, is an entirely digital system. T/F

False

Today's modems can transmit data at speeds up to 300 bits per second. T/F

False

Mesh topology is usually used in the ______ structure.

Internet

Because they must convert data between digital and analog forms, fax machines have built-in modems. T/F

True

Telephones and fax machines are forms of telecommunications. T/F

True

The more bandwidth, the faster the connection. T/F

True

The Open Systems Interconnection, or OSI, model has _____ layers.

seven