Computer Science Quiz

What is the purpose of corrective maintenance in program maintenance?

• To improve the performance of a program

• To test the inputs and outputs of a module

• To add new tasks required by the customer

• To correct errors that appear during use

Answer explanation

Corrective maintenance in program maintenance is performed to correct errors that appear during use.

What is the principle of a stack data structure?

• Sequential access

• Random access

• Last in, first out (LIFO)

• First in, first out (FIFO)

Answer explanation

The principle of a stack data structure is Last in, first out (LIFO). It means that the last element added to the stack will be the first one to be removed. This allows for efficient insertion and deletion operations.

What is the purpose of white-box testing in program development?

• Testing separately written modules to ensure they work together

• Testing the completed program in-house by the development team

• Testing the structure and logic of every path through a program module

• Testing a module's inputs and outputs

Answer explanation

White-box testing is used to test the structure and logic of every path through a program module.

What is the purpose of adaptive maintenance in program maintenance?

• To correct errors that appear during use

• To improve the performance of a program

• To test the inputs and outputs of a module

• To add new tasks required by the customer

Answer explanation

Adaptive maintenance is performed to add new tasks required by the customer, enhancing program functionality.

What is the principle of a queue data structure?

• Last in, first out (LIFO)

• Sequential access

• First in, first out (FIFO)

• Random access

Answer explanation

The principle of a queue data structure is 'First in, first out (FIFO)'. It ensures that the element added first will be the first one to be removed.

What is the purpose of black-box testing in program development?

• Testing the completed program in-house by the development team

• Testing separately written modules to ensure they work together

• Testing the structure and logic of every path through a program module

• Testing a module's inputs and outputs

Answer explanation

Black-box testing is used to test a module's inputs and outputs, ensuring they work correctly. It focuses on the functionality of the module without considering its internal structure or logic.

What is the purpose of perfective maintenance in program maintenance?

• To correct errors that appear during use

• To test the inputs and outputs of a module

• To add new tasks required by the customer

• To improve the performance of a program

Answer explanation

Perfective maintenance is performed to improve the performance of a program.

What is the purpose of integration testing in program development?

• Testing the structure and logic of every path through a program module

• Testing the completed program in-house by the development team

• Testing a module's inputs and outputs

• Testing separately written modules to ensure they work together

Answer explanation

Integration testing is performed to test separately written modules to ensure they work together.

What is the purpose of a linked list data structure?

• To store items in a FIFO manner

• To store items in a random manner

• To store items in a sequential manner

• To store items in a LIFO manner

Answer explanation

A linked list is used to store items in a sequential manner, allowing efficient insertion and deletion operations.

What is the purpose of alpha testing in program development?

• To test the completed program by a small group of users before general release

• To test the completed program in-house by the development team

• To prove to the customer that the completed program works as required in the environment in which it will be used

• To test the structure and logic of every path through a program module

Answer explanation

Alpha testing is conducted in-house by the development team to ensure the completed program functions correctly before general release.