Data Communication and Networking MCQs

31.

Buffering is ________. 

   A.) the process of temporarily storing the data to allow for small variation in device speeds.
   B.) a method to reduce cross-talks
   C.) storage of data within the transmitting medium until the receiver is ready to receive
   D.) a method to reduce the routing overhead

Answer: Option 'A'

the process of temporarily storing the data to allow for small variation in device speeds.

32.

Binary codes are sometimes transformed in modems into.

   A.) Hexadecimal
   B.) Huffman codes
   C.) Gray code
   D.) Complementary codes

Answer: Option 'C'

​Gray code

33.

Which of the following is not a characteristic of the hub architecture of Arc net?

   A.) Directionalized transmission
   B.) Alternative routing
   C.) Zero insertion loss amplifier
   D.) RIM port isolation

Answer: Option 'B'

Alternative routing

34.

One unsolved problem with satellite system is ________.

   A.) coverage
   B.) privacy
   C.) bandwidth
   D.) access

Answer: Option 'B'

​privacy

35.

How many OSI layers are covered in the X.25 standard?

   A.) three
   B.) four
   C.) two
   D.) seven

Answer: Option 'A'

four

36.

Local area network can transmit _________.

   A.) faster than telecommunications over public telephone lines.
   B.) slower than telecommunications over public telephone lines.
   C.) using twisted-pair wiring or coaxial cables
   D.) both (A) and (C)

Answer: Option 'D'

both (A) and (C)

37.

The transmission signal coding method for T, the carrier is called _______.

   A.) NRZ
   B.) Bipolar
   C.) Manchester
   D.) Binary

Answer: Option 'B'

Bipolar

38.

A streaming protocol….

   A.) provides error detection
   B.) does not provide error detection
   C.) uses 64-byte blocks
   D.) requires a manual setup’

Answer: Option 'B'

does not provide error detection

39.

To create a _______ personal computer can cannot together.

   A.) server 
   B.) super computer 
   C.) enterprise 
   D.) network 

Answer: Option 'D'

network 

40.

The use of Dataphone Digital Services.

   A.) can be expected to increase
   B.) provides a higher operating rate than FTI service.
   C.) can be expected to be replaced by FTI service due to the lower cost of that service.
   D.) provides a higher operating rate than T

Answer: Option 'C'

can be expected to be replaced by FTI service due to the lower cost of that service.

41.

A Western Electric 201 modem operates with a carrier frequency of _______.

   A.) 1000 Hz
   B.) 1200 Hz
   C.) 1800 Hz
   D.) 600 Hz

Answer: Option 'C'

​1800 Hz

42.

An encyclopedic database is ________.

   A.) an information utility that specializes in storing and searching information
   B.) generally free
   C.) easy for beginners to use
   D.) all of these

Answer: Option 'A'

an information utility that specializes in storing and searching information

43.

Which layer os international standard organization OSI model is responsible for creating and recognizing frame boundaries?

   A.) physical layer
   B.) data link layer
   C.) transport layer
   D.) network layer

Answer: Option 'B'

data link layer

44.

Deposition of dopants on fiber preforms is done by _______.

   A.) outside vapor deposition
   B.) axial vapor deposition
   C.) inside vapor deposition
   D.) all of these

Answer: Option 'D'

all of these

45.

In OSI network architecture, the routing is performed by _______

   A.) a data link layer
   B.) network layer
   C.) transport layer
   D.) session layer

Answer: Option 'B'

network layer

Data Communication and Networking MCQs Download Pdf

Recent Posts