Multi Threading In C Plus Plus — Part 1 MCQs with Explanations

A process that allows multiple threads to execute concurrently is the correct answer to “What is multi-threading in C++”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

<thread> is the correct answer to “Which header file is used for multi-threading in C++”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

Depends on the hardware and operating system is the correct answer to “What is the maximum number of threads that can run concurrently in C++”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To create and manage threads is the correct answer to “What is the purpose of the 'std::thread' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

Mutex is the correct answer to “Which of the following is a common synchronization primitive in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

A condition where multiple threads try to access shared resources simultaneously is the correct answer to “What is a race condition in multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

join() is the correct answer to “Which function is used to join a thread in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To provide mutual exclusion is the correct answer to “What is the purpose of the 'std::mutex' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

A situation where two or more threads are waiting indefinitely for each other to release resources is the correct answer to “What is deadlock in multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

All of the above is the correct answer to “Which of the following is used to avoid race conditions in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To synchronize the execution of threads is the correct answer to “What is the purpose of the 'std::condition_variable' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

Thread safety ensures that data accessed by multiple threads is synchronized is the correct answer to “Which of the following is true about thread safety in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To perform atomic operations on shared variables is the correct answer to “What is the purpose of the 'std::atomic' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

std::barrier is the correct answer to “Which of the following is used to implement a barrier in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To create a new thread and execute a function asynchronously is the correct answer to “What is the purpose of the 'std::async' function in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

std::thread is the correct answer to “Which of the following is a thread management library in C++”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To acquire and release a mutex automatically is the correct answer to “What is the purpose of the 'std::lock_guard' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To provide more flexibility than std::lock_guard is the correct answer to “What is the purpose of the 'std::unique_lock' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To wait for a condition to be satisfied by any type of mutex is the correct answer to “What is the purpose of the 'std::condition_variable_any' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To package a task and its associated state is the correct answer to “What is the purpose of the 'std::packaged_task' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To represent the result of an asynchronous operation is the correct answer to “What is the purpose of the 'std::future' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

std::async creates a new thread and executes a function asynchronously, while std::thread simply creates a new thread is the correct answer to “What is the difference between std::async and std::thread in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To store a value or an exception that will be made available asynchronously is the correct answer to “What is the purpose of the 'std::promise' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

std::condition_variable can only work with std::mutex, while std::condition_variable_any can work with any mutex type is the correct answer to “What is the difference between std::condition_variable and std::condition_variable_any in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To return the number of hardware concurrency units supported by the implementation is the correct answer to “What is the purpose of the 'std::thread::hardware_concurrency()' function in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To allow a thread to lock the same mutex multiple times without causing a deadlock is the correct answer to “What is the purpose of the 'std::recursive_mutex' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To provide atomic access to a boolean flag is the correct answer to “What is the purpose of the 'std::atomic_flag' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To synchronize the execution of threads until a specified count is reached is the correct answer to “What is the purpose of the 'std::latch' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To synchronize the execution of threads at a specified point is the correct answer to “What is the purpose of the 'std::barrier' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To control access to a shared resource by multiple threads is the correct answer to “What is the purpose of the 'std::semaphore' class in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

Barrier is the correct answer to “Which of the following is not a synchronization mechanism in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

The code can be safely executed by multiple threads concurrently is the correct answer to “What does the term "thread-safe" mean in the context of multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To provide mutual exclusion is the correct answer to “What is the primary purpose of a mutex in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

It allows one thread to notify other threads about a condition is the correct answer to “Which of the following is true about a condition variable in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

A situation where two or more threads are waiting indefinitely for each other to release resources is the correct answer to “What is a deadlock in the context of multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

std::thread is the correct answer to “Which C++11 feature introduced support for multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

std::recursive_mutex can be locked multiple times by the same thread, while std::mutex cannot is the correct answer to “What is the difference between std::mutex and std::recursive_mutex in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

Deterministic execution is the correct answer to “Which of the following is not a potential issue in multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

To make the current thread sleep for a specified duration is the correct answer to “What is the purpose of the 'std::this_thread::sleep_for' function in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.

std::mutex is a blocking synchronization primitive, while std::spinlock is a non-blocking synchronization primitive is the correct answer to “What is the primary difference between a std::mutex and a std::spinlock in C++ multi-threading”. This question is standard in competitive examination syllabi for Multi Threading In C Plus Plus.