Understanding Java Threads

Understanding Java Threads

University

20 Qs

quiz-placeholder

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Understanding Java Threads

Understanding Java Threads

Assessment

Quiz

Information Technology (IT)

University

Medium

Created by

Yosuva Sirumani

Used 1+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the states in the thread lifecycle?

Running, Paused, Completed

New, Runnable, Blocked, Waiting, Timed Waiting, Terminated

Initialized, Active, Suspended

Idle, Executing, Finished

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the difference between user threads and daemon threads.

User threads cannot be terminated while daemon threads can.

User threads are application-managed and essential for execution, while daemon threads are background threads that support user threads and can be terminated when no user threads are running.

User threads are always faster than daemon threads.

Daemon threads are used for user input handling.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the synchronized keyword in Java?

To enable automatic garbage collection in Java.

To provide thread-safe access to methods or blocks of code.

To improve the performance of single-threaded applications.

To allow multiple threads to execute simultaneously without restrictions.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you prevent thread interference in Java?

Implement thread-local storage for all shared resources.

Use synchronization mechanisms like synchronized methods, locks, or concurrent data structures.

Use volatile variables to share data between threads.

Avoid using any form of locking or synchronization.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a thread pool and why is it used?

A thread pool is used to manage and reuse a fixed number of threads for executing tasks concurrently, improving performance and resource efficiency.

A thread pool is used to create new threads for each task, increasing overhead.

A thread pool is a single thread that executes tasks sequentially.

A thread pool is a collection of processes that run independently of each other.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Describe the RUNNABLE state in the thread lifecycle.

The RUNNABLE state means the thread is terminated and cannot be executed anymore.

The RUNNABLE state refers to a thread that is sleeping and not ready to run.

The RUNNABLE state indicates a thread that is currently blocked and waiting for resources.

The RUNNABLE state represents a thread that is ready to run and can be executed by the CPU.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the wait() method in thread communication?

The wait() method allows a thread to wait until it is notified by another thread, facilitating communication and synchronization between threads.

The wait() method is used to create new threads.

The wait() method pauses the entire program execution.

The wait() method terminates the thread immediately.

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