# Digital Communications Questions and Answers – Interpolation

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.

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.
advertisement
advertisement

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.
Sanfoundry Certification Contest of the Month is Live. 100+ Subjects. Participate Now!

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.
advertisement

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.
advertisement

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.

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.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & discussions at Telegram SanfoundryClasses.