Question

A thread is usually defined as a "light weight process" because an Operating System (OS) maintains smaller data structures for a thread than for a process. In relation to this, which of the following is TRUE?

• A. On per-thread basis, the OS maintains only CPU register state
• B. On per-thread basis, the OS does not maintain virtual memory state
• C. On per-thread basis, the OS maintains only scheduling and accounting information
• D. The OS does not maintain a separate stack for each thread

Answer 1

The correct option is B On per-thread basis, the OS does not maintain virtual memory state

(a) False: On per thread basics, OS maintains both CPU register state and stack. Hence option (a) is false, because only CPU register state mentioned

(b) False: OS maintains a separate stack for each thread.

(c) True: OS does not maintain virtual memory state.

(d) False: OS does not maintain scheduling and accounting information.