In exception handling, what is the purpose of the "finally" block?

To execute code regardless of whether an exception occurs.

In most programming languages, how is a constant typically declared?

Using the keyword "const" or "final."

What is the purpose of the "try" block in exception handling?

To execute code that might cause an exception.

What is the main difference between a constant and a variable?

Variables can be changed, constants cannot.

Which of the following is an example of data validation?

Checking if an email address contains the "@" symbol.

In programming, what is the purpose of a variable's data type?

To specify the memory size allocated for the variable.

What is the purpose of data validation in programming?

To verify that data is sensible and reasonable.

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Computer Science Basics 1

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constants and variables arithmetic operations validating data error handling loops and branches

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Questions 12

Answers

1
In exception handling, what is the purpose of the "finally" block?
To skip the exception and proceed with the next code block.
To execute code regardless of whether an exception occurs.
To define the exception.
To catch specific exceptions.
2
In most programming languages, how is a constant typically declared?
Using the keyword "var."
Constants do not require explicit declaration.
Using the keyword "let."
Using the keyword "const" or "final."
3
Which operator is used for exponentiation in most programming languages?
*
%
**
^
4
Which statement is used to exit a loop prematurely?
break
exit
continue
return
5
What is the purpose of the "try" block in exception handling?
To execute code that might cause an exception.
To execute code regardless of whether an exception occurs.
To catch specific exceptions.
To define the exception.
6
Which type of loop is best suited when the number of iterations is known in advance?
if else loop
while loop
for loop
do while loop
7
What is the main difference between a constant and a variable?
Constants and variables are interchangeable.
Variables can be changed, constants cannot.
Constants can be changed, variables cannot.
Constants and variables serve the same purpose.
8
Which of the following is an example of data validation?
Encrypting sensitive information.
Sorting an array.
Compressing a text file.
Checking if an email address contains the "@" symbol.
9
In programming, what is the purpose of a variable's data type?
To prevent the variable from being changed.
To specify the memory size allocated for the variable.
To determine the variable's scope.
To assign a unique identifier to the variable.
10
What is the purpose of data validation in programming?
To verify that data is sensible and reasonable.
To encrypt data.
To compress data for efficient storage.
To ensure data is stored in a secure location.
11
What is the result of the expression 10 / 3 in most programming languages?
3.3333
3
4
3.0
12
What will be the result of the expression 5 + 3 *2?
11
26
13
16

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