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Free download in PDF Wireless Communication Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(21)
DECT stands for
[A]
Digital European Cellular Telex
[B]
Digitized Emergency Cellular Telephone
[C]
Digital European Cordless Telephone
[D]
Digital European Cellular Telephone
Answer: Digital European Cellular Telex
(22)
World’s first cellular system was developed by
[A]
Bellcore and Motorola
[B]
AT&T Bell Laboratories
[C]
Qualcomm
[D]
Nippon Telephone and Telegraph (NTT)
Answer: Nippon Telephone and Telegraph (NTT)
(23)
Garage door opener is a
[A]
Transmitter
[B]
Receiver
[C]
Transceiver
[D]
All of the above
(24)
MIN stands for
[A]
Mobile Identification Number
[B]
Mobile Internet
[C]
Mobility In Network
[D]
All of the above
Answer: Mobile Identification Number
(25)
PCN is
[A]
Wireless concept of making calls
[B]
For receiving calls
[C]
Irrespective of the location of the user
[D]
All of the above
(26)
NADC is a 2G standard for
[A]
TDMA
[B]
CDMA
[C]
Both a & b
[D]
All of the above
(27)
The 2G GSM technology uses a carrier separation of
[A]
1.25 MHz
[B]
200 KHz
[C]
30 KHz
[D]
All of the above
(28)
Radio capacity may be increased in cellular concept by
[A]
Increase in radio spectrum
[B]
Increasing the number of base stations & reusing the channels
[C]
Both a & b
[D]
None of the above
Answer: Increasing the number of base stations & reusing the channels
(29)
The shape of the cellular region for maximum radio coverage is
[A]
Circular
[B]
Square
[C]
Oval
[D]
Hexagon
(30)
Hexagon shape is used for radio coverage for a cell because
[A]
It uses the maximum area for coverage
[B]
Fewer number of cells are required
[C]
It approximates circular radiation pattern
[D]
All of the above
31
The strategies acquired for channel assignment are
[A]
Fixed
[B]
Dynamic
[C]
Regular
[D]
Both a and b
32
In a fixed channel assignment strategy, if all the assigned channels are occupied, the call
[A]
Gets transferred to another cell
[B]
Gets blocked
[C]
Is kept on waiting
[D]
All of the above
33
In a dynamic channel assignment strategy,
[A]
Voice channels are not permanently assigned
[B]
The serving base station requests for a channel from MSC
[C]
MSC allocates the channel according to the predetermined algorithm
[D]
All of the above
34
Advantage of using Dynamic channel assignment is
[A]
Blocking is reduced
[B]
Capacity of the system is increased
[C]
Both a & b
[D]
None of the above
35
Disadvantage of using Dynamic channel assignment is
[A]
More storage required
[B]
Calculations and analysis is increased
[C]
Both a & b
[D]
None of the above
36
Delay in handoffs is caused due to
[A]
Week signal conditions
[B]
High traffic conditions
[C]
Un availability of the channel
[D]
All of the above
37
When a fraction of assigned channel is reserved for handoffs, it is
[A]
Guard channel concept
[B]
Fixed channel assignment
[C]
Dynamic channel assignment
[D]
None of the above
Answer: Guard channel concept
38
While handoffs, the termination of call may be avoided by
[A]
Providing Guard channel
[B]
Queuing of handoffs
[C]
Both a & b
[D]
None of the above
39
GSM is an example of
[A]
TDMA cellular systems
[B]
FDMA cellular systems
[C]
CDMA cellular systems
[D]
All of the above
Answer: TDMA cellular systems
40
TDMA allows the user to have
[A]
Use of same frequency channel for same time slot
[B]
Use of same frequency channel for different time slot
[C]
Use of same time slot for different frequency channel
[D]
Use of different time slot for different frequency channels
Answer: Use of same frequency channel for different time slot
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