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Question 1:
a) State the different file attributes and briefly explain the operations that can be performed on each files.
b) What is a semaphore? Describe why it is important.
c) What do you meant by a deadlock? Explain the necessary conditions for a deadlock to occur.
Question 2:
a) One important aspect of Memory Management is "Paging ". Discuss.
b) Explain the Linked Allocation of disk space to files.
1. What must a kernel provide for an effective user-level thread implementation? 2. With respect to the quantum q in a scheduling algorithm, explain and discuss the impact of th
Q. We have an OS (operating system) for a machine that uses base and limit registers however we have modified the machine to provide a page table. Can the page tables be set up to
Several schemes available are as follows: Pipes : One-way communication process through which different process can interact. The problem is that the two processes could have
what is the use of valid invalid bits in paging
Binary number based systems Binary is a ' base 2' number system, only two numbers exist namely '0' and '1'. Conversion from binary to base 10 is easy if the number column techn
Consider the following C program where M, N, K are predefined constants. Assume int is 4 bytes. Suppose this program is run on a machine with 4KB page size and 32 TLB entries. Init
The procedure for handling the page fault is as follows 1. We check the internal table to verify whether the reference was valid or invalid. 2. If the reference was invalid,
What are a safe state and an unsafe state? Answer: A state is safe if the system can allocate resources to every process in some order and still avoid a deadlock. A system is
EXPLAIN THE SCAN SHUDDULING WITH DIAGRAM
How do we overcome the disadvantages of the two-level directory? Give links from one user directory to another, creating path names; system files become available by letting th
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