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Question: What is a CancellationToken in C# and how is it used in parallel programming?
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Answer: A CancellationToken in C# is a mechanism used for canceling asynchronous operations,
such as tasks, in a cooperative manner. It is typically passed as a parameter to asynchronous methods and checked
periodically within the method's code to determine if the operation should be canceled.
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Question: What is the purpose of the Task.WaitAll and Task.WhenAll methods in C#?
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Answer: The Task.WaitAll is used to wait for completion of multiple tasks synchronously,
blocking the current thread until all tasks are completed.
Task.WhenAll, on the other hand, returns a task that completes when all of the input tasks
have completed asynchronously, allowing for non-blocking waiting.
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Question: What is the difference between Task.Run and Task.Factory.StartNew in C#?
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Answer: The Task.Run is a shorthand method provided by the Task Parallel Library (TPL) for creating
and starting a new task asynchronously.
And Task.Factory.StartNew, on the other hand, provides more flexibility and options for creating tasks,
such as specifying TaskCreationOptions and TaskScheduler parameters.
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Question: Can you explain the concept of task continuation in C# and how it is used?
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Answer: Task continuation in C# allows you to specify actions that should be executed after
a task completes, either successfully or with an exception.
It enables chaining together multiple tasks in a sequential manner, defining what should happen
next based on the outcome of the previous task.
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Question: What is the purpose of Parallel.ForEach in C#?
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Answer: The Parallel.ForEach is used to iterate over a collection in parallel,
processing its elements concurrently on multiple CPU cores.
It provides a convenient way to parallelize loop iterations without manually managing tasks and parallelism settings.
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Question: What is the role of the TaskScheduler class in the Task Parallel Library (TPL) in C#?
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Answer: The TaskScheduler class in the Task Parallel Library (TPL) is responsible for scheduling
and executing tasks on different threads or thread pools.
It provides various implementations of task schedulers, such as ThreadPoolTaskScheduler and
ConcurrentExclusiveSchedulerPair, to control task execution behavior.
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Question: What is the difference between Task.Run and async/await in C# asynchronous programming?
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Answer: The Task.Run is used to asynchronously execute a delegate or lambda expression on a thread pool thread,
returning a Task representing the asynchronous operation.
And async/await is a language feature that allows you to write asynchronous code in a more sequential
and readable manner by marking methods as asynchronous and using the await keyword to await asynchronous operations.
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Question: What is the ExecutionContext in C# and how is it used in parallel programming?
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Answer: The ExecutionContext in C# is a context that flows with the execution of
asynchronous operations, such as tasks, capturing information such as security context, culture, and call context.
It is used to propagate ambient information across asynchronous boundaries, ensuring consistency
and integrity in parallel programming scenarios.
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