Multi Threading 4

What is true about threads?

• Threads consumes CPU in best possible manner

• Threads enables multi processing.

• Multi threading reduces idle time of CPU

• All of these

A thread can acquire a lock by using which reserved keyword?

• volatile

• synchronized

• locked

• none

How many threads can a process contain?

• 1

• 2

• multiple

• none of these

What is sometimes also called a lightweight process?

• Thread

• Process

• JVM

• Task

What are valid points about thread

• Thread are subdivision of Process.

• One or more Threads runs in the context of process.

• Threads can execute any part of process. And same part of

• process can be executed by multiple Threads.

What are valid point about processes

• Processes have their own copy of the data segment of the parent process

• Threads have direct access to the data segment of its process

• Processes have their own address

• All of these

Which is thread safe?

• StringBuffer

• StringBuilder

• Both StringBuffer & StringBuilder

• None

How can we create Thread

• By Extending Thread class

• Implementing Runnable interface

• By using Executor framework - which can internally form threads

• All of these

Which of these is not a Thread state?

• New

• Runnable

• sleep

• terminated

synchronized instance methods acquire lock on?

• object

• class

• All

• None