Question 1

**Regression testing is primarily related to**

- Functional testing
- Development testing
- Data flow testing
- Maintenance testing

**Correct one Blow There .** So, option (A) is correct.

Question 2

Of the following sort algorithms, which has execution time that is least dependent on initial ordering of the input ?

Option

- Insertion sort
- Quick sort
- Merge sort
- Selection sort

So, option (C) is correct.

Question 3

The following circuit compares two 2-bit binary numbers, X and Y represented by X1X0 and Y1Y0 respectively. (X0 and Y0 represent Least Significant Bits)

Under what condition Z will be 1 ?

- X > Y
- X < Y
- X = Y
- X != Y

Given, expression is,

Z = X1Y1′ + (X1⊙Y1)X0Y0′

Therefore, if X > Y, then Z is 1. Option (A) is correct.