Mobile Communication

This is an MCQ-based quiz on Mobile Communication.

This includes Simplex mode, Half-duplex mode, and Full-duplex mode.

Start Quiz

Which type of transmission technique is employed by paging system?

Multicasting Unicasting Hybrid Simulcasting

Which of the following is the drawback for cordless telephones?

Security Wireless technology Limited coverage area Mobile

Which of the following leads to the 3G evolution of GSM, IS-136 and PDC systems?

GPRS HSCSD W-CDMA EDGE

Which of the following has no backward compatibility with 3G Cdma2000?

IS-95B IS-95A IS-95 GPRS

Which of the following specifies a set of media access control (MAC) and physical layer specifications for implementing WLANs?

IEEE 802.11 IEEE 802.16 IEEE 802.15 IEEE 802.3

World’s first cellular system was developed by

Nippon Telephone and Telegraph (NTT) Bellcore and Motorola AT&T Bell Laboratories Qualcomm

MIN stands for

Mobile Identification Number Mobile Internet Mobility In Network None of the above

Advanced Mobile Phone Service (AMPS) has a frequency reuse factor of

9 8 7 5

Traffic channels in forward transmission of telephony, carrying digitized voice from the base station to the mobile stations are Channels 8 to 31 and

32 to 40 32 to 63 32 to 60 33 to 63

Digital Advance Mobile Phone Service (D-AMPS) was designed to be backward-compatible with

FDMA AMPS CDMA/CS FSK

SSB can be generated by

Filter method Phase cancellation method Good attenuation characteristics All of the above

What is the purpose of peak clipper circuits in radio transmitters?

To prevent overmodulation To reduce bandwidth To increase bandwidth To regulate oscillator I/P voltage

A buffer amplifier is

A double-tuned amplifier A high gain D.C. amplifier A cathode follower stage None of the above

It is found that a ship to ship communication suffers from fading. This can be avoided by using

Space diversity Frequency diversity Broad band antenna Directional antenna

Skip distance depends on time of day and angle of incidence.

True False

A mobile station only communicates with one base station, in a

Back off

Hard handoff

Soft handoff

Low handoff

In 1900-MHz band, a mobile station needs more

Instructions

Power

Signals

Frames

The process of transferring a mobile station from one base station to another is

MSC

Roamer

Hand off

Forward channel

Spectrum Efficiency of a cellular network is

The traffic carried by whole network

The traffic carried per cell divided by the bandwidth of the system and the area of a cell

Expressed in Erlang /MHz /km2

Both b and c

Both a and c

The strategies acquired for channel assignment are

Fixed

Dynamic

Regular

Both a and b

Both b and c

Quiz/Test Summary

Title: Mobile Communication

Questions: 20

Contributed by:

Diego Thu, Apr 14, 2022 08:12 AM UTC

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