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Digital Communications Multiple Choice Questions | MCQs | Quiz

Digital Communication Interview Questions and Answers
Practice Digital Communication questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams.

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•   Signal Processing
•   Signal Classification
•   Spectral Density
•   Random Signals
•   Baseband System
•   Noise - 1
•   Noise - 2
•   Digital Communication
•   DC System - 1
•   DC System - 2
•   Process Types
•   Signals
•   Analog Information
•   Corruption Sources
•   Pulse Code Modulation
•   Non Uniform Quantization
•   Baseband Transmission - 1
•   Baseband Transmission - 2
•   Correlative Coding
•   Sampling & Quantization - 1
•   Sampling & Quantization - 2
•   Signals & Noises
•   Intersymbol Interference - 1
•   Intersymbol Interference - 2
•   Equalization
•   Non Coherent Detection
•   Bandpass Techniques
•   Coherent Detection
•   M-ary Signalling
•   Link Budget Analysis
•   Link Budget Error Control
•   Noise Parameters
•   Waveform Coding
•   Structured Sequence
•   Error Detection
•   Linear Block Codes
•   Convolution Encoding
•   Reed Solomon Code
•   Concatenated Codes
•   Shannon Hartley Theorem
•   Bandwidth Modulation
•   Communication Resources
•   Trellis Coded Modulation
•   PAM, PWM & TDM
•   M-ary Modulation
•   Modulation & Multiplexing
•   Modulation & Entropy
•   Modulation Techniques
•   Network Synchronization
•   Receiver Synchronization
•   Spread Spectrum & TDMA
•   Access Algorithm
•   INTELSAT
•   TDM & FDM
•   TDM vs FDM
•   Spread Spectrum & CDMA
•   Pseudo Noise Sequence
•   Frequency Hopping
•   Acquisition & Tracking
•   Cellular Systems
•   Cipher Systems Secrecy
•   Stream Encryption
•   Spread Spectrum
•   Public Key Cryptosystems1
•   Public Key Cryptosystems2
•   Pretty Good Privacy
•   Mobile Radio Propagation
•   Signal Time Spreading
•   Rake Receivers
•   Decision Theory Effects
•   Abstraction & Layering
•   Protocols
•   Random Processes
•   ISDN & Interface
•   Error Detection - 1
•   Error Detection - 2
•   Codes & Coding Technique
•   Interpolation
•   Information & Coding
•   Quantization - 1
•   Quantization - 2

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Digital Communications Questions and Answers – Interpolation

Posted on November 3, 2015 by Manish

This set of Digital Communications Multiple Choice Questions & Answers (MCQs) focuses on “Interpolation”.

1. Interpolation is done by
a) Curve fitting
b) Regression analysis
c) Curve fitting & Regression analysis
d) None of the mentioned
View Answer

Answer: c
Explanation: Interpolating the value requires or is done by curve fitting and regression analysis.
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2. Interpolation provides a mean for estimating functions
a) At the beginning points
b) At the ending points
c) At the intermediate points
d) None of the mentioned
View Answer

Answer: c
Explanation: Interpolation provides a mean for estimating the function at the intermediate points.

3. Interpolation methods are
a) Linear interpolation
b) Piecewise constant interpolation
c) Polynomial interpolation
d) All of the mentioned
View Answer

Answer: d
Explanation: Some of the interpolation techniques are linear interpolation, piecewise constant interpolation, polynomial interpolation, spline interpolation etc.

4. Linear interpolation is
a) Easy
b) Precise
c) Easy & Precise
d) None of the mentioned
View Answer

Answer: a
Explanation: Linear interpolation is quick and easy but not precise.

5. Error is equal to
a) Distance between the data points
b) Square of the distance between the data points
c) Half the distance between the data points
d) None of the mentioned
View Answer

Answer: b
Explanation: Error is equal to square of the distance between the data points.
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6. Which produces smoother interpolants?
a) Polynomial interpolation
b) Spline interpolation
c) Polynomial & Spline interpolation
d) None of the mentioned
View Answer

Answer: c
Explanation: Polynomial interpolation and spline interpolation produces smoother interpolants.

7. Which is more expensive?
a) Polynomial interpolation
b) Linear interpolation
c) Polynomial & Linear interpolation
d) None of the mentioned
View Answer

Answer: a
Explanation: Polynomial interpolation is more expensive than linear interpolation.

8. Gaussian process is a _____ interpolation process.
a) Linear
b) Non linear
c) Not an interpolation process
d) None of the mentioned
View Answer

Answer: a
Explanation: Gaussian process is a non linear interpolation process.

9. Interpolation means
a) Adding new data points
b) Only aligning old data points
c) Only removing old data points
d) None of the mentioned
View Answer

Answer: a
Explanation: Interpolation is a method of adding new data points within the range of a discrete set of known data points.

10. Interpolation is a method of
a) Interrelating
b) Estimating
c) Integrating
d) Combining
View Answer

Answer: b
Explanation: Interpolation is a method of estimating the value of the function.
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Sanfoundry Global Education & Learning Series – Digital Communications.

To practice all areas of Digital Communications, here is complete set of 1000+ Multiple Choice Questions and Answers.

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Digital Communications Questions and Answers – Information and Coding »
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Deep Dive @ Sanfoundry:

  1. C Programming Examples on Computational Geometry Problems & Algorithms
  2. Structural Analysis Questions and Answers
  3. Computer Graphics Questions and Answers
  4. Digital Image Processing Questions and Answers
  5. Optical Communications Questions and Answers
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  10. Digital Communication Questions and Answers
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer and SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage & Cluster Administration, Advanced C Programming, SAN Storage Technologies, SCSI Internals and Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him below:
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