Operating Systems (OS) — Winter 2019

Define the term. 1. Dispatcher. 2. Thrashing. 3. Operating system. 4. Scheduling. 5. Cache memory. 6. Turnaround time. 7. Middleware.

Do as directed. 1. What is kernel? 2. List any 2 reasons for process creation. 3. Process is a subset of a thread.(TRUE/FALSE). 4. What is atomic operation? 5. The size of all the pages within a process is not same.(TRUE/FALSE). 6. List all OS control tables. 7. What is seek time for disk scheduling?

What is process? Explain 5 state process model with diagram.

What is semaphore? Explain primitives of 2 types of semaphore.

What is memory partition? Explain dynamic memory partitioning technique with diagram.

Explain different classes of client server architecture. Also explain three tier architecture in detail.

What is page replacement? Explain FIFO and LRU page replacement policy for the following page stream. The page address stream is as below

Define the term Deadlock. Discuss the necessary and sufficient conditions for a Deadlock to occur. State the general approaches to deal with Deadlock situation.

What is TLB? Explain paging with TLB with flowchart.

What is process scheduling? Explain HRRN and Shortest process next policy. Process scheduling example Process Arrival time Service time A 0 B 2 C 4 D 6 E 8 21

What is Monitor? Explain the solution to the Bounded-Buffer Producer/Consumer Problem using a Monitor

Explain the buddy system with proper example

What is I/O Communication? Explain I/O Communication Techniques in detail.

What is file? Explain different type of file organization technique in detail.

Explain RAID and its level 0-6 in detail.

What is paging? Explain address translation in paging with diagram.

What is Cluster? Explain different clustering methods in detail.