.NET Programming MCQs with answers Page - 47

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Q. What is the purpose of the Global Assembly Cache (GAC)?

  • (A) Store temporary files
  • (B) Store shared .NET assemblies
  • (C) Store configuration files
  • (D) Store source code

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Q. Which keyword ensures a variable is accessed by only one thread at a time?

  • (A) lock
  • (B) sync
  • (C) thread
  • (D) mutex

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Q. Which namespace is used for multithreading?

  • (A) System.IO
  • (B) System.Threading
  • (C) System.Collections
  • (D) System.Net

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Q. What is deadlock in .NET?

  • (A) High CPU usage
  • (B) Threads waiting indefinitely for resources
  • (C) Memory leak
  • (D) Application crash

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Q. Which class is used to create a thread?

  • (A) Task
  • (B) Thread
  • (C) ThreadPool
  • (D) BackgroundWorker

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Q. What is Task Parallel Library (TPL)?

  • (A) UI framework
  • (B) Data access tool
  • (C) Parallel programming library
  • (D) Logging system

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Q. Which method is used to wait for a Task to complete?

  • (A) Wait()
  • (B) Complete()
  • (C) Join()
  • (D) Stop()

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Q. What is async method return type?

  • (A) void only
  • (B) Task or Task<T>
  • (C) Thread
  • (D) IAsyncResult

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Q. Which collection is thread-safe?

  • (A) List
  • (B) ArrayList
  • (C) ConcurrentDictionary
  • (D) Dictionary

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Q. What is race condition?

  • (A) CPU scheduling issue
  • (B) Threads accessing shared data unsafely
  • (C) Deadlock
  • (D) Memory overflow

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