Menu

Question Discussion & Solution

MCQ

Q.

Quadrature amplitude modulation (QAM) is a combination of ___________

A

ASK and FSK

B

ASK and PSK

C

PSK and FSK

D

none of the above

Community Discussion

No discussions yet. Be the first to start!

You must be logged in to participate in the discussion.

Login to Discuss

Similar Questions

MCQ

1.

In ___________ there is always a transition at the middle of the bit, but the bit values are determined at the beginning of the bit. If the next bit is 0, there is a transition; if the next bit is 1, there is none.

A

Manchester

B

differential Manchester

C

both (a) and (b)

D

neither (a) nor (b)

Discussion

MCQ

2.

ASK, PSK, FSK, and QAM are examples of ________ conversion.

A

digital-to-digital

B

digital-to-analog

C

analog-to-analog

D

analog-to-digital

Discussion

MCQ

3.

______ provides redundancy to ensure synchronization and inherent error detection.

A

Block coding

B

Line coding

C

Scrambling

D

None of the above

Discussion

MCQ

4.

Unipolar, bipolar, and polar encoding are types of _______ encoding.

A

line

B

block

C

NRZ

D

Manchester

Discussion

MCQ

5.

Which of the following encoding methods does not provide for synchronization?

A

NRZ-L

B

RZ

C

NRZ-I

D

Manchester

Discussion

More Data Communication and Computer Network Topics

Data Communication and Computer Network Basics

30 MCQs

Network Models

47 MCQs

Data and Signals

27 MCQs

Transmission

74 MCQs

Multiplexing

17 MCQs

Transmission Media

82 MCQs

Error Detection and Correction

27 MCQs

Data

298 MCQs

Network Addressing

76 MCQs

Network Layer Internet Protocols

19 MCQs

Nework Layer Routing

68 MCQs

Process

71 MCQs

Congestion Control and Quality of Service

40 MCQs

Domain Name System

26 MCQs

Remote Logging, Mail and File Transfer

43 MCQs

WWW and HTTP

28 MCQs

Network Management

20 MCQs

Multimedia

30 MCQs

Network Security

85 MCQs

Mixed

10 MCQs

Introduction to Computer Networks

0 MCQs

Networks Layers and Models

0 MCQs

Network Devices

0 MCQs

Fundamentals of Mobile Communication

0 MCQs