Simplified guide of MCQs for Exams, Interviews

Sub Topic: Data Communication

1 .  Microwave and Communication Satellite are examples of

  • A. Guided
  • B. Un-guided
  • C. Simplex

Correct Answer:

Un-guided


2 .  The voice channel has a bandwidth of

  • A. 0-2 KHz
  • B. 0-4 KHz
  • C. 4-5 KHz
  • D. 4-0 KHz

Correct Answer:

0-4 KHz


3 .  The voice channel has a bandwidth of

  • A. 0-2 KHz
  • B. 0-4 KHz
  • C. 4-5 KHz
  • D. 4-0 KHz

Correct Answer:

0-4 KHz


4 .  An important characteristic of fiber optics is

  • A. Refraction
  • B. De-fraction
  • C. Transaction
  • D. None of the Above

Correct Answer:

Refraction


5 .  Analog signal is measured in

  • A. Volts
  • B. WATTS
  • C. Hertz

Correct Answer:

Volts


6 .  All of the following are Guided Communication media except

  • A. Fiber-Optic Cable
  • B. Wire Cable
  • C. Satellite-based,Microwave Communication
  • D. Coaxial Cable

Correct Answer:

Satellite-based,Microwave Communication


7 .  Following devices are used in simplex mode

  • A. Radio
  • B. Television
  • C. Both

Correct Answer:

Both


8 .  The _____is the physical path over which a message travels

  • A. Single
  • B. Medium
  • C. Double

Correct Answer:

Medium


9 .  Wireless modems transmit the data signals through

  • A. Air
  • B. Cable
  • C. Gateway
  • D. None of them

Correct Answer:

Air


10 .  The encoding scheme of data represent as

  • A. EBCDIC code
  • B. ASCII code
  • C. Unicode
  • D. All of them

Correct Answer:

All of them