Explore topic-wise MCQs in Wireless Mobile Communications.

This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless Mobile Communications knowledge and support exam preparation. Choose a topic below to get started.

1.

________ exaggerates the bit errors originally received at the base station.

A. Non linear transformation
B. Tandem signalling
C. Large cell size
D. Complex vocoders
Answer» C. Large cell size
Discussion
2.

What is DAM in speech coding system?

A. Diagnostic Acceptability Measure
B. Digital Acceptability Measure
C. Diagnostic Accessibility Measure
D. Digital Accessibility Measure
Answer» B. Digital Acceptability Measure
Discussion
3.

Which of the following is true for VSELP?

A. Low speech quality, modest computational complexity, robust to channel errors
B. Highest speech quality, low computational complexity, channel errors
C. Highest speech quality, high computational complexity, robust to channel errors
D. Highest speech quality, modest computational complexity, robust to channel errors
Answer» E.
Discussion
4.

VSELP speech coder is a variant of ___________

A. CELP
B. MPE_LTP
C. RELP
D. RPE-LTP
Answer» B. MPE_LTP
Discussion
5.

RPE-LTP codec combines the advantage of RELP codec and CELP codec.

A. True
B. False
Answer» C.
Discussion
6.

The type of modulation does not affect the choice of speech codec.

A. True
B. False
Answer» C.
Discussion
7.

WHICH_OF_THE_FOLLOWING_IS_TRUE_FOR_VSELP??$

A. Low speech quality, modest computational complexity, robust to channel errors
B. Highest speech quality, low computational complexity, channel errors
C. Highest speech quality, high computational complexity, robust to channel errors
D. Highest speech quality, modest computational complexity, robust to channel errors
Answer» E.
Discussion
8.

VSELP_SPEECH_CODER_IS_A_VARIANT_OF_______?$

A. CELP
B. MPE_LTP
C. RELP
D. RPE-LTP
Answer» B. MPE_LTP
Discussion
9.

________ exaggerates the bit errors originally received at the base station.$

A. Non linear transformation
B. Tandem signalling
C. Large cell size
D. Complex vocoders
Answer» C. Large cell size
Discussion
10.

What is DAM in speech coding system?$

A. Diagnostic Acceptability Measure
B. Digital Acceptability Measure
C. Diagnostic Accessibility Measure
D. Digital Accessibility Measure
Answer» B. Digital Acceptability Measure
Discussion
11.

Which of the following codec is used by IS-136?

A. Residual Excited Linear Predictive Coders
B. Multipulse Excited LPC
C. LPC Vocoders
D. Vector sum excited LPC
Answer» E.
Discussion
12.

RPE-LTP codec combines the advantage of RELP codec and CELP codec. State whether True or False.

A. True
B. False
Answer» C.
Discussion
13.

Which of the following is true for MPE-LTP codec?

A. Good quality of speech, low complexity
B. Good quality of speech, high complexity
C. Bad quality of speech, low complexity
D. Bad quality of speech, high complexity
Answer» C. Bad quality of speech, low complexity
Discussion
14.

Which of the following is true for baseband RELP codec?

A. Good quality of speech, low complexity
B. Good quality of speech, high complexity
C. Bad quality of speech, low complexity
D. Bad quality of speech, high complexity
Answer» B. Good quality of speech, high complexity
Discussion
15.

Which of the following is the name of original speech coder used in the pan European digital cellular standard GSM?

A. Multipulse excited codec
B. Residual excited codec
C. Regular pulse excited long term prediction
D. Code excited codec
Answer» D. Code excited codec
Discussion
16.

Type of modulation does not affect the choice of speech codec?

A. True
B. False
Answer» C.
Discussion
17.

Which of the following is an important factor in determining spectral efficiency of the system?

A. Multiple access technique
B. Cell size
C. Modulation technique
D. Vocoder
Answer» B. Cell size
Discussion
18.

The choice of speech coder does not depend on cell size used.

A. True
B. False
Answer» C.
Discussion