# 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

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

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

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

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

6. Which produces smoother interpolants?
a) Polynomial interpolation
b) Spline interpolation
c) Polynomial & Spline interpolation
d) None of the mentioned

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

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

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

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