ECAT Pre Computer Science MCQ Test For Computer Chapter 6 With Answer

MCQ's Test For ECAT Computer Science Chapter 6 Data Communication

Try The MCQ's Test For ECAT Computer Science Chapter 6 Data Communication

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ECAT Computer Science Chapter 6 Data Communication

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Question # 1

Which of the following is not a category of network problems.

Question # 2

ASCII 7 bit code can represent maximum

Question # 3

Light sound and radio waves are examples of :

Question # 4

To make a personal computer act like a terminal, which type of software must be used?

Question # 5

What layer of the OSI model does data compression?

Question # 6

A device that receives messages is called:

Question # 7

___________coding scheme is used by IBM

Question # 8

___________ code systems can represent upto 65536 symbols

Question # 9

The type of modulation that changes the height of the signal is called.

Question # 10

Data communication requires only a :

Question # 11

Logical security for on-line systems is achieved primarily by ________ and authorization codes

Question # 12

What best describes a bus topology network?

Question # 13

The process of converting from analog to digital is called.

Question # 14

Electronic banking.

Question # 15

Who invented the modem?

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ECAT Computer Sciences Chapter 6 Important MCQ's

Sr.# Question Answer
1 The process of converting from analog to digital is called.
A. modulation
B. line switching
C. telecommuting
D. demodulation
2 Project 802 defines standards for which layers of the OSI model?
A. Application and Presentation layers
B. Physical an Date Link layers
C. Transport and Network layers
D. Network and Data Link layers
3 A network of geographically distant computers and terminals is called a.
A. bus
B. WAN
C. gateway
D. LAN
4 The information that is to be transferred from one location to another is called:
A. Signals
B. Data
C. Sender
D. Message
5 The number of times a wave repeats during a specific time interval is called
A. Amplitude
B. Oscillation
C. Frequency
D. Pulses
6 ________ is component of data communication.
A. Sender
B. Receiver
C. Encoder and Decoder
D. All
7 Microwave transmission, coaxial cables, and fiber optics are examples of.
A. modems
B. communication links
C. gateways
D. ring network
8 People on a LAN can share.
A. Printer
B. CD/ROM disk drive
C. modem
D. fax machine
9 A device that receives messages is called:
A. Transmitter
B. Receiver
C. Source
D. Sender
10 Token passing prevents data collisions by.
A. Using code to steer tokens around each other
B. Having multiple tokens take alternate routes.
C. Allowing only one computer at a time to use the token
D. Using zones to control network traffic congestion

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