Question

A program validates a numeric field as follows:

Values less than 10 are rejected, values between 10 and 21 are accepted, values greater than or equal to 22 are rejected.
Which of the following covers the MOST boundary values?
A. 9, 10, 11, 22
B. 9, 10, 21, 22
C. 10, 11, 21, 22
D. 10, 11, 20, 21

Answer 1

Option C (10, 11, 21, 22) covers the most boundary values.

Step-by-step explanation:

The given program validates a numeric field based on certain conditions:

1. Values less than 10 are rejected.
2. Values between 10 and 21 (inclusive) are accepted.
3. Values greater than or equal to 22 are rejected.

To find the option that covers the most boundary values, we need to look for the option that includes the minimum and maximum values for each condition. After analyzing the given options, it can be determined that option C (10, 11, 21, 22) covers the most boundary values. Option C includes the minimum and maximum values for all three conditions, ensuring that it covers the greatest range of values.