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

What is dispatch latency, What is dispatch latency? The time taken by t...

What is dispatch latency? The time taken by the dispatcher to stop one process and begin another running is known as dispatch latency.

Explain the benefits of thread over process?, BENEFITS OF THREADS OVER PROC...

BENEFITS OF THREADS OVER PROCESS If implemented correctly after those threads have some advantages of (multi) processes, they take: 1. Less time to create a new thread tha

Difference between two tier and three tier architectures, Question: a) ...

Question: a) Illustrate with the help of a diagram, the difference between two tier and three tier architectures. b) Explain in what kind of environment, a peer to peer envi

Explain logical file system architecture, Logical File System Responsi...

Logical File System Responsible for providing the before discussed interface to the user including: File access. Directory operations. Security and protection.

Explain kernel-level threads (klt), KERNEL-LEVEL THREADS (KLT) In this...

KERNEL-LEVEL THREADS (KLT) In this level every thread management is done by kernel .No thread library except an API system calls to the kernel thread facility exists. The kern

Designing issues in a network -transparency, Transparency Users mus...

Transparency Users must be able to access remote resources as though these resources were local. Transparency should as well promote user mobility. Users must be allowed

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