ITF+ Quiz Part 14

What is the process called in which programmers create apps?

• Software development

• Hardware development

• Network development

• Database development

Answer explanation

Software development is the process in which programmers create apps, making it the correct choice among the options provided.

What do programmers use to write code?

• Programming languages

• Natural languages

• Markup languages

• Scripting languages

Answer explanation

Programmers use programming languages to write code. These languages provide the syntax and structure needed to create functional software applications.

What is a program?

• A sequence of instructions for a computer to perform

• A type of hardware component

• A user interface design

• A network protocol

Answer explanation

A program is a sequence of instructions for a computer to perform, making it the correct choice among the options provided.

What is the first step in the example program sequence provided?

• Clear the current display

• Ask the user for the first number

• Display the result

• Retrieve the stored numbers

Answer explanation

The first step in the example program sequence provided is to clear the current display.

In the modified program sequence, what should the program do if the entered value is not a number?

• Remind the user what the valid range is and prompt again

• Proceed with the next step

• Display an error message and terminate

• Ignore the input and continue

Answer explanation

Remind the user what the valid range is and prompt again

What is the purpose of using a flow chart in programming?

• To make the code more complex

• To visualize the sequence of processes

• To write more lines of code

• To avoid using loops

Answer explanation

To visualize the sequence of processes

Which step comes immediately after "Clear display" in the flow chart?

• Ask for 1st number

• Display result

• Display instructions

• Store number

Answer explanation

The step that comes immediately after 'Clear display' in the flow chart is 'Display instructions'.

What is the final step in the flow chart?

• Sum numbers

• Display result

• End

• Store number

Answer explanation

The final step in the flow chart is 'End', which signifies the end of the process or program.

According to the text, what is a desirable characteristic of "better" code?

• It should be as complex as possible

• It should contain many lines of code

• It should be compact and efficient

• It should avoid using diagrams

Answer explanation

It should be compact and efficient

What is the purpose of the 'Verify subroutine' in the pseudocode?

• To clear the display

• To verify user input is a number

• To prompt for the first number

• To sum two variables

Answer explanation

The purpose of the 'Verify subroutine' in the pseudocode is to verify user input is a number, ensuring that the input is valid and can be used in calculations.