Multi threading in C++ MCQ question and answer with solution

1

What is multi-threading in C++?

A) A process that allows parallel execution of tasks B) A process that allows a single thread to execute C) A process that allows multiple processes to execute concurrently D) A process that allows multiple threads to execute concurrently

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Answer & Solution

Answer: Option D

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2

Which header file is used for multi-threading in C++?

A) <mutex> B) <condition_variable> C) <thread> D) <atomic>

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Answer & Solution

Answer: Option C

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3

What is the maximum number of threads that can run concurrently in C++?

A) 2 B) Depends on the hardware and operating system C) 4 D) 8

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Answer & Solution

Answer: Option B

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4

What is the purpose of the 'std::thread' class in C++ multi-threading?

A) To define thread-specific data B) To manage thread priorities C) To create and manage threads D) To synchronize access to shared resources

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Answer & Solution

Answer: Option C

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5

Which of the following is a common synchronization primitive in C++ multi-threading?

A) Semaphore B) Barrier C) Spinlock D) Mutex

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Answer & Solution

Answer: Option D

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6

What is a race condition in multi-threading?

A) A condition where the outcome of a program depends on the order of thread execution B) A condition where multiple threads try to access shared resources simultaneously C) A condition where threads wait indefinitely for a signal D) A condition where threads execute in parallel

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Answer & Solution

Answer: Option B

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7

Which function is used to join a thread in C++ multi-threading?

A) join() B) wait() C) sync() D) connect()

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Answer & Solution

Answer: Option A

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8

What is the purpose of the 'std::mutex' class in C++ multi-threading?

A) To manage thread priorities B) To synchronize thread execution C) To notify waiting threads D) To provide mutual exclusion

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Answer: Option D

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9

What is deadlock in multi-threading?

A) A situation where a thread blocks other threads from executing B) A situation where threads execute out of order C) A situation where two or more threads are waiting indefinitely for each other to release resources D) A situation where threads race to access shared resources

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Answer & Solution

Answer: Option C

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10

Which of the following is used to avoid race conditions in C++ multi-threading?

A) Mutex B) Semaphore C) Condition variable D) All of the above

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Answer & Solution

Answer: Option D

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Multi threading in C++ MCQ question and answer with solution | C++ Programimg MCQs