Understanding Loops in C Language

What is a loop in C programming?

• A loop in C programming is a data structure for storing variables.

• A loop in C programming is a type of error handling mechanism.

• A loop in C programming is a control structure that enables repeated execution of a block of code.

• A loop in C programming is a function that returns a value.

Name the three types of loops in C.

• repeat, iterate, loop

• foreach, until, repeat

• for, while, do while

• loop, cycle, iterate

What is the syntax of a for loop in C?

• for(condition; initialization; increment/decrement) { // code }

• for(initialization: condition: increment/decrement) { // code }

• for(initialization; increment/decrement; condition) { // code }

• for(initialization; condition; increment/decrement) { // code to be executed }

How does a while loop differ from a do-while loop?

• A while loop may not execute if the condition is false initially, while a do-while loop always executes at least once.

• A while loop executes at least once regardless of the condition.

• A do-while loop can skip execution if the condition is true initially.

• Both loops execute the same number of times regardless of the condition.

What is the purpose of the break statement in loops?

• The break statement terminates the loop execution.

• The break statement pauses the loop execution.

• The break statement continues to the next loop iteration.

• The break statement skips the current iteration of the loop.

Explain the use of the continue statement in loops.

• The continue statement terminates the loop immediately.

• The continue statement is used to exit a loop completely.

• The continue statement allows skipping the rest of the loop's body for the current iteration.

• The continue statement pauses the loop for a specified time.

What will be the output of the following code snippet: for(i=0; i<5; i++) { printf('%d', i); }?

• 12345

• 01235

• 01234

• 01234

How can you create an infinite loop in C?

• do {} while(1);

• for(1) {}

• while(0) {}

• while(1) {} or for(;;) {}

What is the role of the initialization statement in a for loop?

• It defines the number of iterations after the loop starts.

• It initializes the loop control variable(s) before the loop begins.

• It updates the loop control variable during each iteration.

• It terminates the loop when a condition is met.

What happens if the loop condition is always true?

• The program enters an infinite loop.

• The program terminates successfully.

• The program runs faster due to the constant condition.

• The loop condition is ignored by the compiler.