ITTechnocrates: Operating System Subjects Some Important Questions.

2 Sept 2013

Operating System Subject's IMP Questions..

Operating System Subject's Some Important Questions..

Why is MBR registers required?
Why are interrupts needed? List the limitation of Sequential interrupt processing.
Briefly compare all in board memory.
Define Virtual memory. Briefly explain all levels of system structure.
Define DMA. Briefly explain steps involve in Simple Interrupt Processing.
Explain the key elements of an Operating System for Multiprogramming with figure.
List the objective of time sharing system and multiprogramming system.
Briefly explain Block/Suspend->Block, Ready->Ready/Suspend states of process.
List two events/reasons lead to the termination and suspension of a process?
Why are two modes (user and kernel) needed?
What is the difference between a mode switch and a process switch?
For what types of entities does the OS maintain tables of information for management purposes?
Explain the difference between a monolithic kernel and a microkernel.
Briefly explain SMP with figure. List two advantages and disadvantages of ULTs over KLTs.
What is I/O Management? Write a short note on UNIX SVR4 Process Management.
Define Thread. What resources are typically shared by all of the threads of a process?
Define Process. What do you mean by pure user-level thread? What are the two separate the potentially independent characteristics embodied in the concept of process?
When and how the short-term, medium-term and long-term scheduling policies are applied? Draw the queuing diagram for scheduling.
Explain the resident set management policies for virtual memory. Explain how it affects the degree of multiprogramming.
Define virtual memory. Compare LRU, FIFO and Clock page replacement policies with suitable example.
What is paging? Explain the logical to physical address translation mechanism with example.
What is Monitor? Explain the solution to the Bounded-Buffer
Producer/Consumer Problem using a Monitor.
What is Translation Lookaside Buffer? Explain the Paging with the use of TLB.
What role the main memory cache plays with the Virtual Memory Management using TLB?
Discuss the use of Invert Page Table in paging technique. How physical address is generated in it?
What is deadlock? State necessary conditions for deadlock to occur. Explain
banker’s algorithm for deadlock avoidance.
Define the term. Dispatcher.
What is Process Spawning.
List out three general categories of PCB information.
List out which process states works in virtual memory and which one in primary memory.
Write down the full form of PSW, JCL.
Differentiate between mode switching and process switching.
Define main categories of processor registers and list out the registers in each category.
What is interrupt handler routine?
What is hit ratio?
Explain the issues and resolution for Cash Design.
Explain time sharing system with basic example.
Write short note on Process Control Structures.
Explain process state transition with one and two suspended states.
Compare the Resident set management.
Briefly explain the Address translation in a paging system.