Frequent question: What is the main objective of protection?

Ensure that each object is accessed correctly and only by allowed processes.

What are different protection roles?

Protection refers to a mechanism which controls the access of programs, processes, or users to the resources defined by a computer system. We can take protection as a helper to multi programming operating system, so that many users might safely share a common logical name space such as directory or files.

What is the correct way the segmentation program address is stored?

What is the correct way the segmentation program address is stored? Explanation: OS can retrieve the real address via looking for the table then making a simple calculation: address of the name + offset.

What is the basic need in protecting memory in multi user environment?

Discussion Forum

Que. What is basic need in protecting memory in multi-user environment ?
b. We need a variable register
c. A fence register has to be used known as base register.
d. None of the mentioned
Answer:A fence register has to be used known as base register.
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What is the best solution for effect of unbounded numbers if base bound registers?

Discussion Forum

Que. What is best solution to have effect of unbounded number if base/bound registers?
b. Segmentation
c. Fence method
d. None of the mentioned
Answer:Segmentation

What is the principle of protection?

The principle of protection involves placing a barrier between the pathogen and the susceptible part of the host to shield the host from the pathogen.

What is the major feature of segmentation?

Discussion Forum

Que. What is major feature of segmentation ?
a. Program is divided in data memory and program memory
b. Program is executed in segments
c. Program is divided into pieces having different access rights
d. It has effect of an unbounded architecture

Why do we use Access Matrix?

Access Matrix is a security model of protection state in computer system. It is represented as a matrix. Access matrix is used to define the rights of each process executing in the domain with respect to each object. The rows of matrix represent domains and columns represent objects.

What is role of base bound register?

A base-bound register is associated with each segment of data or code and defines the position in physical memory of word zero for that segment, the so-called base, and the number of words available to that segment, the so-called bound or limit(or alternatively the physical memory address of the next word after the end …

Which among them has the strongest wireless security?

Which among them has the strongest wireless security? Explanation: The most extensive types of wireless securities are Wired Equivalent Privacy (WEP), Wi-Fi Protected Access (WPA), WPA2 and WPA3. WPA3 is the strongest and recently released. 3.

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What is not important part of security protection?

What is not an important part of security protection? Explanation: RAM has no effect on security of a system. System’s protection remains unchanged in increasing or decreasing amount of RAM.

Which of the following methods are utilized for protection of the memory?

i. Fence: A fence or fence address is simplest form of memory protection which can be used only for single user operating system. A fence is a particular address that users and their processes cannot cross.