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Understanding Java Threads

Authored by B Prabhu Shankar VelTech

Computers

12th Grade

Used 1+ times

Understanding Java Threads
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the states in the Java Thread Lifecycle?

INITIALIZED

NEW, RUNNABLE, BLOCKED, WAITING, TIMED_WAITING, TERMINATED

COMPLETED

RUNNING

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the difference between user threads and daemon threads.

User threads are managed by the user and can run independently, while daemon threads run in the background and are terminated when user threads complete.

User threads are always terminated first.

Daemon threads can run independently of user threads.

User threads cannot be managed by the user.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is thread synchronization and why is it important?

Thread synchronization is a mechanism to control access to shared resources by multiple threads, preventing data inconsistency.

Thread synchronization is a technique to allocate more memory to threads.

Thread synchronization is a method to increase the speed of thread execution.

Thread synchronization is used to create more threads for better performance.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you achieve thread synchronization in Java?

Implement a busy-wait loop for synchronization

Use global variables for sharing data

Rely on the Java garbage collector for thread management

Use synchronized methods or blocks, or utilize java.util.concurrent locks.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the synchronized keyword in Java?

To ensure that methods run faster in multi-threaded environments.

To allow multiple threads to access the same method simultaneously.

To prevent any form of code execution in a multi-threaded context.

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

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Describe the concept of a monitor in thread synchronization.

A monitor is a type of hardware used for displaying graphics.

A monitor is a programming language used for thread management.

A monitor is a synchronization mechanism that ensures mutual exclusion and coordination among threads accessing shared resources.

A monitor is a database system for storing thread data.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the Runnable interface and how is it used?

The Runnable interface is a class that cannot be instantiated directly.

The Runnable interface is a data structure for storing thread information.

The Runnable interface is used to create graphical user interfaces in Java.

The Runnable interface is a functional interface in Java that represents a task to be executed by a thread.

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