#1
What is the primary purpose of using control structures in programming?
To control the flow of execution
ExplanationControl structures manage the sequence of code execution.
#2
Which loop in programming executes the code block a specified number of times?
for loop
ExplanationThe 'for' loop iterates over a range, executing code a predetermined number of times.
#3
What does the term 'iteration' mean in the context of loops?
The process of executing a loop repeatedly
ExplanationIteration is the repetitive execution of a loop.
#4
In a 'while' loop, under what condition does the loop continue to execute?
While the condition evaluates to true
Explanation'while' loop continues executing as long as the specified condition remains true.
#5
What is the purpose of the 'for' loop in programming?
To execute a block of code a specified number of times
Explanation'for' loop is used for precise iteration, executing code a set number of times.
#6
Which of the following is NOT a valid loop control statement in programming?
exit
Explanation'exit' is not a standard loop control statement in programming.
#7
What does the 'break' statement do in a loop?
It exits the loop immediately
Explanation'break' terminates the loop prematurely, skipping subsequent iterations.
#8
What is a nested loop?
A loop that is defined within another loop
ExplanationA nested loop is a loop inside another loop, allowing for complex iteration.
#9
What is the difference between 'while' and 'do-while' loops?
'do-while' always executes at least once
Explanation'do-while' ensures the code block is executed once before checking the loop condition.
#10
What is the purpose of the 'switch' statement in programming?
To perform different actions based on different conditions
Explanation'switch' directs program flow based on the value of an expression.
#11
What does the 'else' statement do in an 'if-else' construct?
It executes only if the condition of the 'if' statement is false
Explanation'else' block executes when the 'if' condition is false.
#12
What is the purpose of the 'goto' statement?
To transfer control to a specified label within the same function
Explanation'goto' directs program control to a labeled point in the same function.
#13
What is the purpose of the 'continue' statement in a loop?
To repeat the current iteration of the loop
Explanation'continue' skips the current iteration and proceeds with the next one.
#14
What is a 'control structure' in programming?
A statement that changes the control flow of a program
ExplanationControl structures alter the order in which program statements are executed.
#15
What is the difference between 'break' and 'continue' statements in a loop?
'break' exits the loop entirely, while 'continue' skips the current iteration and continues with the next one
Explanation'break' terminates the loop, while 'continue' skips the current iteration.
#16
In switch statements, what is the purpose of the 'default' case?
To execute if none of the other cases match
Explanation'default' case executes when none of the other switch cases match.
#17
What is an advantage of using a 'for' loop over a 'while' loop?
'for' loops can easily express looping over a range
Explanation'for' loops are concise for iterating over a specified range of values.