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    • C++ Multithreading Quiz

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    Question 1

    Which of the following best describes multithreading?


    • A

      Running multiple processes on different machines

    • B

      Running multiple threads within the same process concurrently

    • C

      Running one thread after another in sequence

    • D

      Running multiple programs at the same time

    Question 2

    Which C++ header file is required to use std::thread?

    • A

    • B

    • C

       

    • D

    Question 3

    What will be the output of this code?

    C++ 
    #include 
#include 
using namespace std;
void task() {
cout << "Hello from thread";
}
int main() {
thread t(task);
t.join();
}


    • A

      No Output

    • B

      Compilation Error

    • C

      Hello from Thread

    • D

      Runtime Error

    Question 4

    Why is thread synchronization necessary?

    • A

      To make threads run faster

    • B

      To avoid thread creation overhead


    • C

      To prevent race conditions when accessing shared resources

    • D

      To make all threads execute in sequence


    Question 5

    Which of the following is used in C++ for thread synchronization?

    • A

      std::thread_guard

    • B

      std::condition_variable only

    • C

       std::sync

    • D

      std::mutex

    Question 6

    What happens if you call t.join() twice on the same std::thread object?

    • A

      The thread restarts


    • B

       It is ignored

    • C

      The program terminates without error

    • D

      The program throws std::system_error

    Tags:
    C++

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