46. Deadlock is a situation when thread is waiting for other thread to release acquired object.

1. 1. False

   
   
   

   2. True

   
   
   

   3. NA

   
   
   

   4. NA

   
   
   

   5. NA

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Deadlock is java programming situation where one thread waits for an object lock that is acquired by other thread and vice-versa.

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47. What is true about time slicing?

1. 1. Time slicing depends on its implementation in OS

   
   
   

   2. Time slicing is OS service that allocates CPU time to available runnable thread

   
   
   

   3. Time slicing is the process to divide the available CPU time to available runnable thread

   
   
   

   4. Time slicing allocates more resources to thread

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Time slicing is the process to divide the available CPU time to available runnable thread.

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48. What decides thread priority?

1. 1. Thread

   
   
   

   2. Thread scheduler

   
   
   

   3. Process

   
   
   

   4. Process scheduler

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Thread scheduler decides the priority of the thread execution. This cannot guarantee that higher priority thread will be executed first, it depends on thread scheduler implementation that is OS dependent.

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49. What does not prevent JVM from terminating?

1. 1. JVM Thread

   
   
   

   2. Process

   
   
   

   3. Daemon Thread

   
   
   

   4. User Thread

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Daemon thread runs in the background and does not prevent JVM from terminating. Child of daemon thread is also daemon thread.

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50. What requires less resources?

1. 1. Process

   
   
   

   2. Thread

   
   
   

   3. Neither Thread nor Process

   
   
   

   4. Thread and Process

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Thread is a lightweight and requires less resources to create and exist in the process. Thread shares the process resources.

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