Multithreading interview questions part 1
Multithreading interview questions part 1
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Total Questions: 20
1. _______ makes it possible for two or more activities to execute in parallel on a single processor.
Correct Answer is : Multithreading
2. In ______ an object of type Thread in the namespace System.Threading represents and controls one thread.
Correct Answer is : .NET
3. The method will be executed once the thread’s ______ method is called.
Correct Answer is : Start
4. Command to make thread sleep?
Correct Answer is : Thread.Sleep
5. An instance of class Buffer provides a threadsafe way of communication between ________
Correct Answer is : Objects
6. The model in which one kernel thread is mapped to many user-level threads is called :
Correct Answer is : Many to One model
7. The model in which one user-level thread is mapped to many kernel level threads is called :
Correct Answer is : One to Many model
8. In the Many to One model, if a thread makes a blocking system call :
Correct Answer is : the entire process will be blocked
9. In the Many to One model, multiple threads are unable to run in parallel on multiprocessors because :
Correct Answer is : only one thread can access the kernel at a time
10. The One to One model allows :
Correct Answer is : increased concurrency
11. What requires less resources?
Correct Answer is : Thread
12. What does not prevent JVM from terminating?
Correct Answer is : Daemon Thread
13. What decides thread priority?
Correct Answer is : Thread scheduler
14. What is true about time slicing?
Correct Answer is : Time slicing is the process to divide the available CPU time to available runnable thread
15. Deadlock is a situation when thread is waiting for other thread to release acquired object.
Correct Answer is : TRUE
16. What should not be done to avoid deadlock?
Correct Answer is : Execute foreign code while holding a lock
17. What is true about threading?
Correct Answer is : start() method creates new thread and calls code written in run() method
18. Which of the following is a correct constructor for thread?
Correct Answer is : Thread(Runnable a, String str)
19. Which of the following stops execution of a thread?
Correct Answer is : Calling notify() method on an object
20. Which of the following will ensure the thread will be in running state?
Correct Answer is : wait()
