[C-Sharp Programming MCQS ]

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[ C-Sharp Programming MCQS ]

Useful GK for JPSC, JSSC, JET, Jharkhand Police and other exams.

321. Deadlock कब होता है?

[A] जब memory free हो

[B] जब threads एक दूसरे का resource wait करें

[C] जब CPU fast हो

[D] जब program start हो

321. When does a deadlock occur?

[A] When memory is free

[B] When threads wait for each other’s resources

[C] When CPU is fast

[D] When program starts

सही उत्तर: जब threads एक दूसरे का resource wait करें

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: When threads wait for each other’s resources

Explanation: Important question.

322. ConfigureAwait(false) का फायदा क्या है?

[A] UI freeze करता है

[B] Context switch avoid करता है

[C] Memory increase करता है

[D] Thread create करता है

322. What is the benefit of ConfigureAwait(false)?

[A] Freezes UI

[B] Avoids context switch

[C] Increases memory

[D] Creates thread

सही उत्तर: Context switch avoid करता है

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: Avoids context switch

Explanation: Important question.

323. Task.WhenAll() क्या करता है?

[A] Single task run करता है

[B] Multiple tasks को parallel execute करता है

[C] Memory delete करता है

[D] Thread stop करता है

323. What does Task.WhenAll() do?

[A] Runs single task

[B] Executes multiple tasks in parallel

[C] Deletes memory

[D] Stops thread

सही उत्तर: Multiple tasks को parallel execute करता है

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: Executes multiple tasks in parallel

Explanation: Important question.

324. Task.WhenAny() क्या return करता है?

[A] All tasks

[B] First completed task

[C] Error

[D] Null

324. What does Task.WhenAny() return?

[A] All tasks

[B] First completed task

[C] Error

[D] Null

सही उत्तर: First completed task

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: First completed task

Explanation: Important question.

325. CancellationToken का उपयोग किसलिए होता है?

[A] Thread create करने के लिए

[B] Task cancel करने के लिए

[C] Memory allocate करने के लिए

[D] Database connect करने के लिए

325. What is CancellationToken used for?

[A] Create thread

[B] Cancel task

[C] Allocate memory

[D] Connect database

सही उत्तर: Task cancel करने के लिए

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: Cancel task

Explanation: Important question.

326. Parallel.ForEach का मुख्य उद्देश्य क्या है?

[A] Sequential execution

[B] Parallel processing of collection

[C] Database query

[D] File delete

326. What is the main purpose of Parallel.ForEach?

[A] Sequential execution

[B] Parallel processing of collection

[C] Database query

[D] File delete

सही उत्तर: Parallel processing of collection

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: Parallel processing of collection

Explanation: Important question.

327. C# में SemaphoreSlim का उपयोग किसलिए किया जाता है?

[A] Memory allocation के लिए

[B] Limited number of threads को control करने के लिए

[C] Database connection के लिए

[D] File compression के लिए

327. What is SemaphoreSlim used for in C#?

[A] For memory allocation

[B] To control limited number of threads

[C] For database connection

[D] For file compression

सही उत्तर: Limited number of threads को control करने के लिए

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: To control limited number of threads

Explanation: Important question.

328. Mutex का मुख्य उपयोग क्या है?

[A] Multiple processes में synchronization

[B] Memory increase करना

[C] File delete करना

[D] UI design करना

328. What is the main use of Mutex?

[A] Increase memory

[B] Synchronization across multiple processes

[C] Delete file

[D] Design UI

सही उत्तर: Multiple processes में synchronization

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: Synchronization across multiple processes

Explanation: Important question.

329. Monitor class का उपयोग किसलिए किया जाता है?

[A] Database access

[B] Thread synchronization

[C] File handling

[D] JSON parsing

329. What is the use of Monitor class?

[A] Database access

[B] Thread synchronization

[C] File handling

[D] JSON parsing

सही उत्तर: Thread synchronization

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: Thread synchronization

Explanation: Important question.

330. lock keyword internally किसका use करता है?

[A] Mutex

[B] Monitor

[C] Semaphore

[D] Task

330. What does the lock keyword internally use?

[A] Mutex

[B] Monitor

[C] Semaphore

[D] Task

सही उत्तर: Monitor

व्याख्या: महत्वपूर्ण प्रश्न।

Correct Answer: Monitor

Explanation: Important question.