Visual Programming MCQs with Answers
Practice important Visual Programming MCQs with answers and explanations.
Multiple Choice Questions
Q601: How does the Lock statement help with thread safety?
- A: It prevents multiple threads from accessing the critical section of code simultaneously
- B: It creates a new instance of the thread to handle synchronization
- C: It initializes a new lock object for each thread
- D: It changes the state of the thread to ensure thread safety
View Answer
A
Q602: What is a ParameterizedThreadStart delegate used for in threading?
- A: To pass arguments to a thread method
- B: To specify the starting point of a thread
- C: To set the priority level of a thread
- D: To define the time slice for a thread
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A
Q603: How does lambda expression simplify passing data to threads?
- A: It allows you to directly pass data and create a thread without needing a separate method definition
- B: It creates a new thread for each lambda expression
- C: It automatically handles exceptions within the thread
- D: It manages thread synchronization automatically
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A
Q604: What will be the output of the following code? for(int i=0; i<10; i++) new Thread(() => Console.Write(i)).Start();
- A: The output will be interleaved numbers from 0 to 9
- B: The output will be numbers from 0 to 9 in ascending order
- C: The output will be numbers from 9 to 0 in descending order
- D: The output will be the same number printed multiple times
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A
Q605: How does using Thread.Sleep() with a TimeSpan parameter differ from using it with an integer value?
- A: It provides a more precise control over the sleep duration
- B: It only works with integer values for the sleep duration
- C: It sets a default sleep time that cannot be changed
- D: It does not affect the precision of the sleep duration
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A
Q606: What will be the output of the code if the Go method in ThreadTest is called twice without synchronization?
- A: The output may include "Done" printed multiple times
- B: The output will include "Done" printed exactly once
- C: The output will include "Done" printed in reverse order
- D: The output will include "Done" printed only once per thread
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A
Q607: What is the purpose of the ManualResetEvent class in threading?
- A: It allows threads to wait for a signal before continuing execution
- B: It automatically handles the priority of threads
- C: It manages thread creation and destruction
- D: It synchronizes thread execution based on a specified delay
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A
Q608: How does capturing variables in a lambda expression affect threading?
- A: It creates a closure that can lead to unexpected behavior due to shared state
- B: It ensures that each thread has its own copy of the variable
- C: It prevents variables from being accessed by other threads
- D: It simplifies variable access and avoids synchronization issues
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A
Q609: What is a common problem when using shared state between threads without synchronization?
- A: Data races and inconsistent results due to concurrent access
- B: Improved performance due to reduced locking
- C: Enhanced thread safety and performance
- D: Guaranteed accurate and consistent results
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A
Q610: How do Thread.IsBackground and Thread.Priority properties affect a thread's execution?
- A: IsBackground determines if a thread is a background thread, and Priority sets its execution priority
- B: IsBackground sets the thread's execution priority, and Priority determines its background status
- C: IsBackground controls whether a thread will run to completion, and Priority controls its lifespan
- D: IsBackground and Priority both determine if a thread should be paused or resumed
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A