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Operating System MCQ Question with Answer

Operating System MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 22
Two clocks are said to be synchronized at a particular instance of time if the difference in time values of the two clocks is less than some specified constant. The difference in time values of two clocks is called ___________.

Interrupt
Clock Frequency
Clock Ticks
Clock Skew

Question No : 23
In ________________________ each node periodically sends a message to the time server.

Passive Time Server Centralized Algorithm
Active Time Server Centralized Algorithm
Global Averaging Distributed Algorithms
Localized Averaging Distributed Algorithms

Question No : 24
Load balancing algorithms in ______________ class use the processor and process characteristics to allocate processes to nodes.

Static
Dynamic
Deterministic
Probabilistic

Question No : 25
A process is already split into pieces, called________________.

Tasks
Program
Processors
Routines

Question No : 26
In ____________ location policies a random node is polled to check its state and the task is transferred if it will not be overloaded; polling is continued until a suitable node is found.

Threshold
Shortest
Bidding
Pairing

Question No : 27
The algorithm should be scalable i.e. _____________.

The system should not enter a state in which nodes spend all their time migrating processes or exchanging control messages without doing any useful work.
The system should be able to handle small and large networked systems.
The algorithm should not be affected by the crash of one or more nodes in the system.
The process assignment decisions should be based on the current load of the system and not on some fixed static policy.

Question No : 28
A process is ____________________

A program in Execution.
An asynchronous activity.
The 'dispatchable' unit.
All A, B, C

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