Explain the protection problems, Operating System

Assignment Help:

Q. In some systems a subdirectory is able to be read and written by an authorized user just as ordinary files can be.

a. Explain the protection problems that could arise.

b. Suggest a scheme for dealing with every of the protection problems you named in part a.

Answer:

a. One piece of information reserved in a directory entry is file location. If a user could alter this location then he could access other files defeating the access-protection scheme.

b. Don't allow the user to directly write onto the subdirectory. Rather offer system operations to do so.


Related Discussions:- Explain the protection problems

Removing system dependencies, Removing System Dependencies Because port...

Removing System Dependencies Because portions of the client - server application program may execute on different machines, it is very important for the developer to remove the

What are the operations of processes, What are the operations of processes?...

What are the operations of processes? Process creation A process may create several new processes. The creating process is called as parent process, where as the new proce

What is a latency time, What is a Latency Time Latency Time is the time...

What is a Latency Time Latency Time is the time required through a sector to reach below read/write head.

What is co-operating scheduling?, What is co-operating scheduling? CPU ...

What is co-operating scheduling? CPU scheduling decisions may possibly place under the following four circumstances: 1.      When process switches from the running state to

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

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

Implementing group policies in a windows environment, Question: (a) As...

Question: (a) As a System administrator, elaborate on how you can manage computer accounts in Active Directory of Windows Server 2008? (b) Explain the following user p

What is meant by the phrase thread-safe, The term thread-safe in computer p...

The term thread-safe in computer programming describes that routine or portion of the program that may be called from multiple programming threads without uncalled for interactions

Sector sparing, What is sector sparing is proper definition

What is sector sparing is proper definition

What is the information associated with an open file, What is the informati...

What is the information associated with an open file? Various pieces of information are associated with  an open file which may be: File pointer Disk location of th

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