Chapter 6: Validation

Question 1

Validation techniques

Answer 1

1. Length check
2. Range check
3. Presence check
4. Format check

Question 2

Length check

Answer 2

Process of ensuring that input data is not too short or too long

Question 3

Range check

Answer 3

Process of ensuring that input data is within the required range of values

Question 4

Presence check

Answer 4

Process of ensuring that all required inputs are provided

Question 5

Format check

Answer 5

Process or ensuring that input data matches a required arrangement or pattern

Question 6

Types of program error

Answer 6

1. Syntax errors
2. Run-time errors
3. Logic errors

Question 7

Syntax errors

Answer 7

Errors that are due to incorrect source code that does not follow the rules of the language

Question 8

Run-time errors

Answer 8

Errors that are detected while the program is running, usually causing the program to crash or hang

Question 9

Logic errors

Answer 9

Errors that usually do not cause the program to crash or hang immediately;instead the program does not give the expected output

Question 10

Conditions for test cases

Answer 10

1. Normal conditions
2. Boundary conditions
3. Error conditions

Question 11

Bug

Answer 11

Deflect in a program that causes it to behave in an unintended manner

Question 12

Debugging

Answer 12

Process of identifying and removing deflects from a program

Question 13

Debugging techniques

Answer 13

1. Using intermittent print statements

2. Testing the program in chunks or parts