Online Quiz on Unit-2

What is the correct life cycle of a thread in Java?

• New → Running → Blocked → Dead

• New → Ready → Running → Blocked → Dead

• New → Ready → Running → Waiting → Dead

• New → Running → Waiting → Blocked → Dead

Which of the following methods is used to create a thread in Java?

• Thread()

• run()

• start()

• execute()

Which method is used to pause the execution of the current thread for a specified amount of time in Java?

• wait()

• sleep()

• join()

• yield()

What will happen if the thread is in the 'blocked' state in Java?

• It is currently executing.

• It is waiting to acquire a lock or resource.

• It is paused temporarily.

• It has been terminated.

Which interface must be implemented to create a thread in Java using the 'Runnable' approach?

• Thread

• Runnable

• Process

• Callable

What is the default priority of a thread in Java?

• 1

• 5

• 10

• 100

Which of the following methods is used to set the priority of a thread in Java?

• setPriority()

• setThreadPriority()

• setPriorityLevel()

• priority()

What is thread synchronization used for in Java?

• To make sure that threads share resources without conflict.

• To prevent threads from sleeping.

• To make threads run concurrently.

• To allow threads to run indefinitely.

Which of the following methods is used to notify a thread waiting on an object in Java?

• notifyAll()

• wait()

• signal()

• notify()

Which of the following represents the correct thread state when a thread is created but not yet started?

• New

• Blocked

• Ready

• Running