Mobile Communication Interview Questions: MCQs Q&A

Mobile Communication Interview Questions. Multiple Choice Questions on Mobile Communication for Interview Questions and Tests preparation.


Mobile Communication Interview Questions



Intersystem Handoffs are done ??

a. When a mobile station moves in two cellular systems with different MSC
b. When a mobile station moves between two cellular systems
c. When the mobile station receives more power from another base station than the serving base station
d. All of the above


FDMA demand assignment uses ??

1. Single channel per carrier
2. Multi-channel per carrier
3. Single transmission in one-time slot
4. Multi transmission in one-time slot

a. 1 and 2 are correct
b. 2, 3, and 4 are correct
c. 1, 2, and 3 are correct
d. All four are correct


When a fraction of the 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


In FDMA ??

1. Each user is assigned unique frequency slots
2. Demand assignment is possible
3. Fixed assignment is possible
4. It is vulnerable to timing problems

a. 1 and 2 are correct
b. 2 and 4 are correct
c. 1, 2, and 3 are correct
d. All four are correct


Multiple Choice Questions



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


Cable television is an example of ??



Dwell time is the time for ??

a. A call within the cell
b. Handoff
c. Waiting for channel allocation
d. None of the above


A guard band is ??

a. The small unused bandwidth between the frequency channels to avoid interference
b. The bandwidth allotted to the signal
c. The channel spectrum
d. The spectrum acquired by the noise between the signal



Mobile Communication Interview Questions


Dwell time depends upon ??

a. Interference
b. Distance between the subscriber and the base station
c. Propagation of call
d. All of the above


FDMA is the division of ??

a. Time
b. Phase
c. Spectrum
d. Amplitude


The speech sequence in GSM Codec consists of ??

a. Pre-emphasis, segmentation, windowing, filtering
b. Windowing, Pre-emphasis, segmentation, filtering
c. Pre-emphasis, windowing, segmentation, filtering
d. Pre-emphasis, segmentation, filtering, windowing


The speech coders are selected on the basis of ??

1. Robustness to transmission errors
2. Cell size
3. Type of modulation technique used
4. Distance between the transmitter and receiver

a. 1 and 4 are correct
b. 1, 2, and 3 are correct
c. 2 and 4 are correct
d. All four are correct



Mobile Communication Interview Questions


The windowing technique used for speech coding in GSM Codec is ??

a. Blackman window
b. Welch window
c. Cosine window
d. Hamming window


In GSM Codec, the bits encoded for forwarding error correction are ??

a. Ia bits
b. Ib bits
c. II bits
d. Both a and b
e. Both a and c


The received signal at the GSM speech decoder is passed through ??

a. STP filter
b. LTP filter
c. Quantizer
d. PLL


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