Question

Which among the following is a light weight process?

• A. Zombie process
• B. Daemon process
• C. Thread
• D. Orphan process

Hint:

Process = Heavyweight Thread = Lightweight

Answer 1

The Correct Option is C

Concept: A thread is often called a lightweight process because it shares resources with other threads of the same process.

Step 1: Understand a process.
A process contains:
• Program code
• Data section
• Stack
• Heap
• Registers Creating a new process requires significant overhead.

Step 2: Understand a thread.
Threads within a process share:
• Address space
• Open files
• Global variables Only stack and registers are separate. Therefore, thread creation and switching are faster.

Step 3: Choose the answer.
Hence, \[ \boxed{\text{Thread}} \] is known as a lightweight process.