Computer Networks MCQs

576 Pages·2016·1.323 MB·English

by  Arshad Iqbal

Computer Networks MCQs
Multiple Choice Questions and Answers (Quiz &
Tests with Answer Keys)
By Arshad Iqbal
Table of Contents

Chapter 1: Analog Transmission MCQs
Chapter 2: Bandwidth Utilization: Multiplexing and Spreading MCQs
Chapter 3: Computer Networking MCQs
Chapter 4: Congestion Control and Quality of Service MCQs
Chapter 5: Connecting LANs, Backbone Networks and Virtual LANs
MCQs
Chapter 6: Cryptography MCQs
Chapter 7: Data and Signals MCQs
Chapter 8: Data Communications MCQs
Chapter 9: Data Link Control MCQs
Chapter 10: Data Transmission: Telephone and Cable Networks MCQs
Chapter 11: Digital Transmission MCQs
Chapter 12: Domain Name System MCQs
Chapter 13: Error Detection and Correction MCQs
Chapter 14: Multimedia MCQs
Chapter 15: Multiple Access MCQs
Chapter 16: Network Layer: Address Mapping, Error Reporting and
Multicasting MCQs
Chapter 17: Network Layer: Delivery, Forwarding, and Routing MCQs
Chapter 18: Network Layer: Internet Protocol MCQs
Chapter 19: Network Layer: Logical Addressing MCQs
Chapter 20: Network Management: SNMP MCQs
Chapter 21: Network Models MCQs
Chapter 22: Network Security MCQs
Chapter 23: Process to Process Delivery: UDP, TCP and SCTP MCQs
Chapter 24: Remote Logging, Electronic Mail and File Transfer MCQs
Chapter 25: Security in Internet: IPSec, SSUTLS, PGP, VPN and
Firewalls MCQs
Chapter 26: SONET MCQs
Chapter 27: Switching MCQs
Chapter 28: Transmission Media MCQs
Chapter 29: Virtual Circuit Networks: Frame Relay and ATM MCQs
Chapter 30: Wired LANs: Ethernet MCQs
Chapter 31: Wireless LANs MCQs
Chapter 32: Wireless WANs: Cellular Telephone and Satellite Networks
MCQs
Chapter 33: WWW and HTTP MCQs
Answer Keys
Chapter 1
Analog Transmission Multiple Choice Questions
MCQ 1: Multilevel Amplitude Shift Keying (MASK) is not implemented
with pure Amplitude Shift Keying (ASK), it is implemented with
A. QAM
B. PSK
C. FSK
D. Binary ASK
MCQ 2: In a constellation diagram, a signal element type is represented as
a
A. Dot
B. line
C. x component
D. y component
MCQ 3: The term that refers to the phase continues through the boundary
of two signal elements is
A. non coherent BFSK
B. coherent BFSK
C. Binary ASK
D. Multilevel ASK
MCQ 4: The example of an analog to analog conversion is
A. radio
B. Video
C. Television
D. internet
MCQ 5: The total bandwidth required for Amplitude Modulation (AM) is
A. 2B
B. 2(1 + β)B.
C. 2L
D. 2F
MCQ 6: The total bandwidth required for AM can be determined from the
bandwidth of the audio signal
A. BAM = 2B
B. BAM = 4B
C. BAM = 6B
D. BAM = 10B
MCQ 7: A constellation diagram can help us to define the signal's
A. Frequency and amplitude
B. amplitude and phase
C. amplitude and frequency
D. Frequency and phase
MCQ 8: In Multilevel Frequency Shift Keying (MFSK), to send 3 bits at a
time we can use
A. 2 frequencies
B. 4 frequencies
C. 8 frequencies
D. 10 frequencies
MCQ 9: In the case of Phase Modulation (PM), the value of beta (β) is
A. Lower
B. Greater
C. 0
D. Infinity
MCQ 10: Analog-to-analog conversion can be accomplished in
A. one way
B. two ways
C. three ways
D. four ways
MCQ 11: The projection of the point on the X axis defines the peak
amplitude of the
A. above phase
B. below phase
C. in phase
D. out of phase
MCQ 12: Digital information in which the carrier signal is modified by one
or more of its characteristics is called
A. Demodulation
B. Modulation
C. Decoding
D. Encoding
MCQ 13: In BPSK, we use a polar Non Return to Zero (NRZ) signal for
A. Decoding
B. Encoding
C. Modulation
D. Demodulation
MCQ 14: The Quadrature Amplitude Modulation (QAM) has the same
advantages as
A. ASK and FSK
B. ASK and PSK
C. FSK and PSK
D. None of above
MCQ 15: In Binary Phase Shift Keying (BPSK), there are two values of
phase i.e. 0 degree and
A. 180°
B. 90°
C. 360°
D. 720°
MCQ 16: The value of r in analog transmission is
A. log2L
B. 2log L
C. log L/2
D. Log L
MCQ 17: When Amplitude Shift Keying (ASK) is implemented using only
two levels then it is called
A. Half Duplex ASK
B. Multilevel ASK
C. Binary ASK
D. Duplex ASK
MCQ 18: Find the bandwidth for the AM if we need to modulate a 5-KHz
voice
A. 10 KHz
B. 20 KHz
C. 30 KHz
D. 40 KHz