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Q:

Why paging is used?

Answer

Paging is solution to external fragmentation problem which is to permit the logical address space of a process to be noncontiguous, thus allowing a process to be allocating physical memory wherever the latter is available.

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Subject: Operating Systems

Q:

What are the reasons for process suspension?

Answer

swapping


interactive user request


timing


parent process request

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Subject: Operating Systems

Q:

What are the key object oriented concepts used by Windows NT?

Answer

Encapsulation, Object class and instance.

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Subject: Operating Systems

Q:

What is the use of MAU?

Answer

In token Ring , hub is called Multistation Access Unit(MAU).

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Subject: Networking
Job Role: Network Engineer

Q:

OSI Reference Model provides a framework for discussing network operations and design

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

It provides a framework for discussing network operations and design

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Subject: Networking
Job Role: Database Administration

Q:

When does the condition 'rendezvous' arise?

Answer

In message passing, it is the condition in which, both, the sender and receiver are blocked until the message is delivered.

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Subject: Operating Systems

Q:

What is busy waiting?

Answer

The repeated execution of a loop of code while waiting for an event to occur is called busy-waiting. The CPU is not engaged in any real productive activity during this period, and the process does not progress toward completion.

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Subject: Operating Systems

Q:

What is a binary semaphore? What is its use?

Answer

A binary semaphore is one, which takes only 0 and 1 as values. They are used to implement mutual exclusion and synchronize concurrent processes.

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Subject: Operating Systems