Control Flow Statements in C++ MCQ question and answer with solution

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In C++, what is the difference between the 'while' loop and the 'do-while' loop?

A) 'while' loop always executes at least once, 'do-while' loop may not B) 'while' loop always executes at least once, 'do-while' loop always does C) 'while' loop checks condition before execution, 'do-while' loop checks after execution D) None of the above

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Answer: Option C

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What is the purpose of the 'if-else if-else' statement in C++?

A) Provides multiple conditions to be tested B) Executes multiple statements C) Executes only one statement D) Terminates the program

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Answer: Option A

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What will be the output of the following code: for (int i = 0; i < 3; ++i) { for (int j = 0; j < 2; ++j) { cout << i << j << " "; } }?

A) Compilation error B) 00 10 20 01 11 C) 00 11 22 33 44 D) 00 01 10 11 20 21

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Answer: Option D

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What is the syntax for the 'if-else' statement in C++?

A) if (condition) then { statement; } else { statement; } B) if { condition } { statement; } else { statement; } C) if (condition) { statement; } else { statement; } D) if (condition) { statement; } else statement;

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Answer: Option C

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What does the 'else if' statement allow in C++?

A) Skips to the next iteration B) Additional condition checks C) Terminate the program D) None of the above

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Answer: Option B

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What is the output of the following code: int x = 10; if (x == 10) { cout << "x is 10"; } else { cout << "x is not 10"; } in C++?

A) No output B) Compilation error C) x is 10 D) x is not 10

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Answer: Option C

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What is the purpose of the 'continue' statement in a loop in C++?

A) Terminates the loop B) Skips the remaining code in the loop C) Restarts the loop D) Skips the current iteration

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Answer: Option D

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What will be the output of the following code: int i = 0; while (i < 3) { cout << i << " "; i++; } in C++?

A) Compilation error B) 1 2 3 C) 0 1 2 3 D) 0 1 2

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Answer: Option D

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What is the purpose of the 'break' statement in a loop in C++?

A) Skips the next iteration B) Skips to the next condition C) Terminates the loop D) Restarts the loop

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Answer & Solution

Answer: Option C

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What will be the output of the following code: for (int i = 0; i < 5; ++i) { if (i == 2) continue; cout << i << " "; } in C++?

A) 0 1 2 3 4 B) 0 1 3 4 C) Compilation error D) 1 2 3 4 5

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Answer & Solution

Answer: Option B

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1 2 3 4 5

Control Flow Statements in C++ MCQ question and answer with solution | C++ Programimg MCQs