CBSE Class 7 Computer Science Computer Network MCQs

Question. The synchronous modems are more costly than the asynchronous modems because ?
a) they produce large volume of data
b) they contain clock recovery circuits
c) they transmit the data with stop and start bits.
d) they operate with a larger bandwidth

Answer : B

Question. Computer and communication technology, such as communication links to the Internet, that provide help and understanding to the end user is known as ?
a) presentation file
b) information technology
c) program
d) worksheet file

Answer : B

Question. If you want to connect to your own computer through the Internet from another location, you can use ?
a) e-mail
b) FTP
c) instant message
d) Telnet

Answer : D

Question. An alternate name for the completely interconnected network topology is ?
a) Mesh
b) Star
c) Tree
d) Ring

Answer : A

Question. Which of the following terms is just the collection of networks that can be joined together ?
a) virtual private network
b) LAN
c) intranet
d) extranet

Answer : C

Question. The connection between your computer at home and your local ISP is called __________ ?
a) the last mile
b) the home stretch
c) the home page
d) the backbone

Answer : A

Question. What device separates a single network into two segments but lets the two segments appear as one to higher protocols ?
a) Switch
b) Bridge
c) Gateway
d) Router

Answer : B

Question. A term related to sending data to a satellite is ?
a) downlink
b) modulate
c) demodulate
d) uplink

Answer : D

Question. Networks are monitored by security personnel and supervised by __________ who set(s) up accounts and passwords for authorized network users ?
a) IT managers
b) the government
c) network administrators
d) password administrators

Answer : C

Question. The common name for a modulator-demodulator is __________ ?
a) modem
b) joiner
c) networker
d) connector

Answer : A

Question. A __________ is a set of rules ?
a) resource locator
b) domain
c) hypertext
d) protocol

Answer : D

Question. The vast network of computers that connects millions of people all over the world is called __________ ?
a) LAN
b) Web
c) Hypertext
d) Internet

Answer : D

Question. A modem ?
a) translates analog signals from a computer into digital signals that can travel along conventional telephone lines.
b) translates digital signals from a computer into analog signals that, can travel along conventional telephone lines.
c) demodulates digital signals from a computer.
d) modulates signals from an analog telephone lines.

Answer : B

Question. Computers connected to a LAN (local area network) can __________ ?
a) run faster
b) go on time
c) share information and/or share peripheral equipment
d) E-mail

Answer : C

Question. To connect a computer with a device in the same room, you might be likely to use ?
a) a coaxial cable
b) a dedicated line
c) a ground station
d) None of these

Answer : D

Question. Computers send and receive data in the form of _________ signals ?
a) Analog
b) Digital
c) Modulated
d) Demodulated

Answer : B

Question. Computers that control processes accept data in a continuous __________ ?
a) data traffic pattern
b) data highway
c) infinite loop
d) feedback loop

Answer : D

Question. Codec refers to ?
a) Coder-decoder
b) Co-declaration
c) Command declaration
d) Command decoding

Answer : A

Question. What is a modem connected to ?
a) processor
b) motherboard
c) printer
d) phone line

Answer : D

Question. P2P is a ______ application architecture ?
a) Client/ server
b) Distributed
c) Centralized
d) 1- tier

Answer : B

Question. Which of the following communications modes support two-way traffic but in only one direction of a time ?
a) simplex
b) half-duplex
c) three-quarters duplex
d) All of the above

Answer : B

Question. The collection of links throughout the Internet creates an interconnected network called the __________ ?
a) WWW
b) Web
c) World Wide Web
d) All of the above

Answer : C

Question. Bluetooth is an example of __________ ?
a) Personal area network
b) Local area network
c) Virtual private network
d) Wide area network

Answer : A

Question. Which of the following is not a disadvantage of wireless LAN ?
a) Slower data transmission
b) higher error rate
c) interference of transmissions from different computers
d) None of these

Answer : D

Question. Which of the following device is used to connect two systems, especially if the systems use different protocols ?
a) hub
b) bridge
c) gateway
d) repeater

Answer : C

Question. If you wish to extend the length of the network without having the signal degrade, you would use a ?
a) resonance
b) router
c) gateway
d) repeater

Answer : D