Operation on file system, Operating System

Assignment Help:

Question :

The file system is the most visible aspect of an operating system. It provides the mechanism for on-line storage and access to both data and programs of the operating system and to all the users of the computer system.

(a) What is a file?

(b) Many systems require and open system call and a close system call. Explain the purpose of the open and close operations.

(c) Some systems automatically open a file when it is referenced for the first time, and close the file when the job terminates. What is the advantage and disadvantage of this scheme as compared to the more traditional one, where the user has to open and close the file explicitly?

(d) Just as a file must be opened before it is used, a file system must be mounted before it can be available to processes in the system. Describe the mount procedure that is performed by the operating system.

(e) Consider a file system where a file can be deleted and its disk space reclaimed while links to that file still exists.

I. What problems may occur if a new file is created in the same storage area or with same absolute path name?

II. How can these problems be avoided?


Related Discussions:- Operation on file system

Define lru page replacement policy, Define ‘LRU’ page replacement policy ...

Define ‘LRU’ page replacement policy LRU is Least Recently Used page replacement policy.

#title. operation research, What are the features of Operation Research app...

What are the features of Operation Research approach?

Why page sizes always powers of 2, Q. Why page sizes always powers of 2? ...

Q. Why page sizes always powers of 2? Answer: Recall that paging is executed by breaking up an address into a page and offset number. It is most competent to break the address

Describe demand-paged environment, Q. Which of the subsequent programming ...

Q. Which of the subsequent programming techniques and structures are good for a demand-paged environment? Which aren't good? Describe your answers. a. Stack b. Hashed symbol

Socket, socket based fortune teller sever.your program should create a serv...

socket based fortune teller sever.your program should create a server that listens to a specific port when a client receives a connection the server should respond with a random fo

Single-level page tables, As mentioned above, page tables, are lookup table...

As mentioned above, page tables, are lookup tables mapping a process' virtual pages to physical pages in RAM. How would one implement these page tables? The most straightforward

Write a short note on disk scheduling, Write a short note on disk schedulin...

Write a short note on disk scheduling   One of the responsibities of operating system O/S is to use the hardware efficiently. Whenever a process requires I/O to or from the

Explain independent process and a cooperating process, Question: a) Ea...

Question: a) Each process is represented in the operating system by a process control block (PCB). The PCB contains many pieces of information associated with a specific proce

Synchronization, As we already know, threadsmust ensure consistency; otherw...

As we already know, threadsmust ensure consistency; otherwise, race conditions (non-deterministic results) might happen. Now consider the "too much milk problem": two people share

Define program preemption, Define Program preemption The Forced de-allo...

Define Program preemption The Forced de-allocation of the CPU from a program which is executing on the CPU is known as Program preemption

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd