Control Flow and Statements: Master the Fundamentals of Program Execution

Question 1

Which of the following statements accurately describes the behavior of a while loop?

Accepted Answer

Executes the loop body at least once, then continues until the condition becomes false

Answer

Executes the loop body until the condition becomes true

Answer

Executes the loop body a fixed number of times, as determined by the loop condition

Answer

Executes the loop body until a user-defined event occurs

Question 2

Under what condition does an if-else statement execute the else branch?

Accepted Answer

When the if condition is false

Answer

When the if condition is true

Answer

When the else condition is true

Answer

When neither the if nor the else condition is true

Question 3

What is the main use case for a switch statement?

Accepted Answer

To execute different code blocks based on the value of a single variable

Answer

To create a loop that iterates over a range of values

Answer

To conditionally execute a set of statements based on multiple conditions

Answer

To store data in a key-value pair format

Question 4

What key difference distinguishes a conditional expression from an if-else statement?

Accepted Answer

A conditional expression returns a value, while an if-else statement executes a block of code

Answer

An if-else statement can handle multiple conditions, while a conditional expression can only evaluate one

Answer

A conditional expression is more efficient than an if-else statement

Answer

There is no difference between a conditional expression and an if-else statement

Question 5

Which of the following is NOT a valid control flow statement in most programming languages?

Accepted Answer

define

Answer

if

Answer

break

Answer

continue

Question 6

What is the primary reason for using a nested loop?

Accepted Answer

To execute a set of statements multiple times for each iteration of another loop

Answer

To create a recursive structure within a program

Answer

To improve the readability and organization of code

Answer

To store data in a two-dimensional array

Question 7

What is the key distinction between a pre-test loop and a post-test loop?

Accepted Answer

A pre-test loop checks the condition before executing the loop body, while a post-test loop checks the condition after executing the loop body

Answer

A post-test loop always executes the loop body at least once, while a pre-test loop may not

Answer

A pre-test loop is more efficient than a post-test loop

Answer

There is no difference between a pre-test loop and a post-test loop

Question 8

Which keyword is commonly used in programming languages to establish a loop that continues execution while a specified condition remains true?

Accepted Answer

while

Answer

for

Answer

do-while

Answer

until

Question 9

What is the primary purpose of the 'break' statement in programming?

Accepted Answer

To terminate the execution of a loop prematurely

Answer

To skip the next iteration of a loop

Answer

To end the execution of a program

Answer

To continue execution to the next statement in a code block

Question 10

Explain the distinction between the 'continue' and 'break' statements in programming:

Accepted Answer

The 'continue' statement skips the current iteration of a loop, while the 'break' statement exits the loop entirely.

Answer

The 'break' statement skips the current iteration of a loop, while the 'continue' statement exits the loop entirely.

Answer

Both statements perform the same function.

Answer

Neither statement can be utilized within loops.

Question 11

Which of the provided options is NOT a recognized condition type in C++?

Accepted Answer

Character

Answer

True/False

Answer

Equality

Answer

Relational

Question 12

What is the primary advantage of utilizing nested control flow statements in programming?

Accepted Answer

Enhanced flexibility in creating complex execution paths

Answer

Improved readability and organization of code

Answer

Reduction in the number of variables required

Answer

Simplified debugging processes

Question 13

Explain the key difference between a do-while loop and a while loop:

Accepted Answer

A do-while loop executes its body at least once, regardless of the condition, while a while loop may not execute its body at all.

Answer

A while loop executes its body at least once, regardless of the condition, while a do-while loop may not execute its body at all.

Answer

Both types of loops behave identically.

Answer

Neither type of loop exists in programming languages.

Question 14

Which of the following statements accurately defines a loop statement?

Accepted Answer

A control flow construct that executes a block of code repeatedly until a condition is satisfied.

Answer

A statement that assigns a value to a variable.

Answer

A statement that exits a function or block of code.

Answer

A statement that selects a block of code to execute based on a condition.

Question 15

In a conditional statement, the condition is typically expressed as a:

Accepted Answer

Boolean expression

Answer

Numerical expression

Answer

Textual expression

Answer

List expression

Question 16

Within a loop, the statement used to unconditionally exit the loop is:

Accepted Answer

break

Answer

continue

Answer

exit

Answer

stop

Question 17

Which of the following best describes the purpose of a switch statement?

Accepted Answer

Selects and executes a specific block of code based on a given value.

Answer

Iterates through a collection of values, executing code for each value.

Answer

Evaluates a condition and executes code conditionally.

Answer

Assigns a value to a variable based on a condition.

Question 18

Which statement accurately describes a common application of a for loop?

Accepted Answer

Iterating over a sequence of values, executing code for each value.

Answer

Executing a block of code a specified number of times.

Answer

Exiting a loop based on a specified condition.

Answer

Assigning a value to a variable based on a condition.

Question 19

What is the key distinction between a while loop and a do-while loop?

Accepted Answer

A do-while loop checks the condition after executing the loop body, while a while loop checks the condition before executing the loop body.

Answer

A do-while loop checks the condition before executing the loop body, while a while loop checks the condition after executing the loop body.

Answer

A do-while loop allows for early loop exit based on a condition, while a while loop does not.

Answer

There is no distinction between a while loop and a do-while loop.

Question 20

Which of the following statements about loop statements is true?

Accepted Answer

Do-while loops check the condition at the end of the loop, unlike while loops.

Accepted Answer

For loops are suitable when the number of iterations is known in advance.

Accepted Answer

Break statements are used to exit a loop.

Answer

While loops are always more efficient than for loops.

Question 21

Which statement is an invalid jump statement in Java?

Accepted Answer

goto

Answer

continue

Answer

break

Answer

return

Question 22

When is it more advantageous to use a switch statement compared to a series of if-else statements?

Accepted Answer

When responding to a limited range of numeric inputs, where each specific value corresponds to a predefined action.

Answer

When executing a sequence of actions based on a complex logical condition.

Answer

When iterating through a collection of elements and carrying out different actions based on a particular attribute.

Answer

When terminating the execution of a program in response to an encountered error.

Question 23

Which of the following is **NOT** a type of control flow statement?

Accepted Answer

Variable declaration

Answer

Conditional statement

Answer

Loop statement

Answer

Jump statement

Question 24

Which of the following is used to evaluate a condition and decide which path to take in a program?

Accepted Answer

Conditional expression

Answer

Variable declaration

Answer

Jump statement

Answer

Loop statement

Question 25

Which of the following is a **type** of loop statement that repeatedly executes a block of code while a condition is true?

Accepted Answer

While loop

Answer

Break statement

Answer

If statement

Answer

Continue statement

Question 26

Which of the following is used to terminate a loop statement early, causing control to pass to the statement following the loop?

Accepted Answer

Break statement

Answer

Return statement

Answer

Exit statement

Answer

Continue statement

Question 27

Which of the following is used to skip the remaining statements in a loop and continue with the next iteration?

Accepted Answer

Continue statement

Answer

Break statement

Answer

Exit statement

Answer

Return statement

Question 28

Which of the following is used to transfer control to another part of a program immediately, without regard to the normal flow of execution?

Accepted Answer

Jump statement

Answer

Conditional statement

Answer

Loop statement

Answer

Assignment statement

Question 29

Which of the following is **NOT** a type of jump statement that unconditionally transfers control to a specified location in a program?

Accepted Answer

Conditional jump

Answer

Indirect jump

Answer

Computed jump

Answer

Unconditional jump

Question 30

Which of the following is used to make decisions and control the flow of execution based on the value of a Boolean expression?

Accepted Answer

Conditional statement

Answer

Assignment statement

Answer

Jump statement

Answer

Loop statement

Question 31

Which of the following is used to repeatedly execute a block of code until a specified condition becomes false?

Accepted Answer

Loop statement

Answer

Assignment statement

Answer

Jump statement

Answer

Conditional statement

Question 32

Which of the following is used to transfer control to another part of a program without any conditions, causing the program to continue execution from the specified location?

Accepted Answer

Unconditional jump statement

Answer

Conditional jump statement

Answer

Indirect jump statement

Answer

Computed jump statement

Question 33

What is the primary purpose of a while loop in programming?

Accepted Answer

To repeatedly execute a block of code until a specified condition becomes false.

Answer

To execute a block of code only once.

Answer

To execute a block of code a specified number of times.

Question 34

In Java, which statement is used to terminate the execution of a loop prematurely?

Accepted Answer

break;

Answer

exit;

Answer

stop;

Answer

continue;

Question 35

What is the fundamental difference between a for loop and a while loop?

Accepted Answer

A for loop iterates through a sequence, while a while loop continues executing as long as a condition remains true.

Answer

A for loop can only iterate over lists, while a while loop can iterate over any type of sequence.

Answer

A for loop is used for indefinite iteration, while a while loop is used for definite iteration.

Question 36

Which of the following is not a logical operator in the C++ programming language?

Accepted Answer

or

Answer

&&

Answer

!

Answer

||

Question 37

Consider the following Python code snippet: if x > 0: print('Positive') else: print('Negative'). What will be the output if x is assigned the value 5?

Accepted Answer

Positive

Answer

Error

Answer

0

Answer

Negative

Question 38

Which of the following correctly represents the syntax of a switch statement in Java?

Accepted Answer

switch(expression) { ... }

Answer

case(expression) { ... }

Answer

if(expression) { ... }

Answer

while(expression) { ... }

Question 39

What is the unique characteristic of a do-while loop?

Accepted Answer

It guarantees that the loop body will execute at least once, regardless of the initial condition.

Answer

It executes the loop body a fixed number of times.

Answer

It continues executing the loop body until a condition becomes false.

Question 40

Which of the following is not considered a control flow statement in programming languages?

Accepted Answer

Return

Answer

If

Answer

For

Answer

While

Question 41

What is the primary purpose of a ternary operator?

Accepted Answer

To provide a concise way of evaluating conditional expressions and assigning values based on the result.

Answer

To execute a block of code based on the value of a variable.

Answer

To repeatedly execute a block of code until a condition becomes false.

Question 42

Which control statement is used to execute a block of code only if a specified condition is true?

Accepted Answer

If statement

Answer

Do-while loop

Answer

For loop

Answer

While loop

Question 43

Which loop statement is used to iterate over a collection of items, executing a block of code for each item?

Accepted Answer

For-each loop

Answer

For loop

Answer

While loop

Answer

Do-while loop

Question 44

Which statement is used to exit a loop prematurely, skipping the remaining statements in the loop body?

Accepted Answer

Break statement

Answer

Continue statement

Answer

Return statement

Answer

Jump statement

Question 45

Which statement is used to transfer control to a specific point in the program, bypassing the normal flow of execution?

Accepted Answer

Goto statement

Answer

Switch statement

Answer

If statement

Answer

Return statement

Question 46

Which statement is used to terminate a program abnormally, immediately exiting the program's execution?

Accepted Answer

Exit statement

Answer

Return statement

Answer

Break statement

Answer

Continue statement

Question 47

Which control statement is used to execute a block of code repeatedly until a specified condition becomes false?

Accepted Answer

While loop

Answer

For loop

Answer

For-each loop

Answer

Do-while loop

Question 48

Which control statement is used to execute a block of code at least once, even if a specified condition is false?

Accepted Answer

Do-while loop

Answer

While loop

Answer

For loop

Answer

For-each loop

Question 49

Which statement is used to skip the remaining statements in the current iteration of a loop and continue with the next iteration?

Accepted Answer

Continue statement

Answer

Break statement

Answer

Return statement

Question 50

Which control statement allows a program to execute different sets of statements based on the value of a specified variable?

Accepted Answer

Switch statement

Answer

For loop

Answer

If statement