In a five-state model, which of the following event will cause the process into

Question

In a five-state model, which of the following event will cause the process into Exit state (A) Admitted (B) Dispatch (C) Time-out (D) Release (E) Event wait Which of the following is not included in the user Process Image (A) User Data (B) User Program (C) stack (D) Process Control Block (E) None of the above When a user process is running and an instruction is executed that requests a file-open operation, which of the following event will occur? (A) Supervisor call (B) Trap (C) I/O interrupt (D) Fault (E) None of the above Which of the following thread cannot execute privileged instructions? (A) ULT (B) KLT (C) Kernel supported thread (D) lightweight process (E) None of the above A static entity that consists of an address space and ports through which messages may be sent and received is called (A) Domain (B) Clouds (C) Multithreading (D) Multiinstance (E) None of the above Which of the following statement regarding interrupt is incorrect? (A) If no interrupts are pending, the processor proceeds to the next fetch stage. (B) Interrupt usually involves some overhead. (C) In handling multiple interrupts, the processor cannot disable other interrupts while an interrupt is being processed. (D) When the processor transfers control to the interrupt service routine, it needs to save the Program Status Word and the location of next instruction to be executed. (E) None of the above. Which of the following statement regarding memory is incorrect? (A) When the processor attempts to read a byte or word, will first check with the cache memory. (B) The main memory is usually large and slow. (C) The cache size has impacts on performance of the processor. (D) As the cache block size increases, the hit ratio will decrease. (E) None of the above.

Explanation / Answer

7) In a five-state operating system model, a release of the process by OS will cause the process into exit state. Option:D

8)User data, User program, Stack and Process Control Block are present in process image

9)When a process requires file open operation, the process traps into kernel.

10)user level threads doesn't have kernel access. Option: A

11)Domain Option: A

12)A processor can disable interrupts while handling other interrupts. Option:C

13)Due to spatial locality improving cache block size improves hit ration. Option:D

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