MCQOPTIONS

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

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

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.

4.	VSELP speech coder is a variant of ___________
A.	CELP
B.	MPE_LTP
C.	RELP
D.	RPE-LTP
Answer» B. MPE_LTP

5.	RPE-LTP codec combines the advantage of RELP codec and CELP codec.
A.	True
B.	False
Answer» C.

6.	The type of modulation does not affect the choice of speech codec.
A.	True
B.	False
Answer» C.

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.

8.	VSELP_SPEECH_CODER_IS_A_VARIANT_OF_______?$
A.	CELP
B.	MPE_LTP
C.	RELP
D.	RPE-LTP
Answer» B. MPE_LTP

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

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

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.

12.	RPE-LTP codec combines the advantage of RELP codec and CELP codec. State whether True or False.
A.	True
B.	False
Answer» C.

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

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

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

16.	Type of modulation does not affect the choice of speech codec?
A.	True
B.	False
Answer» C.

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

18.	The choice of speech coder does not depend on cell size used.
A.	True
B.	False
Answer» C.