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MCQ

What is the main disadvantage of spinlocks?

they are not sufficient for many process

they require busy waiting

they are unreliable sometimes

they are too complex for programmers

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MCQ

The two phase locking protocol consists of ____________

growing and shrinking phase

shrinking and creation phase

creation and growing phase

destruction and creation phase

Discussion

MCQ

Which of the following conditions must be satisfied to solve the critical section problem?

Mutual Exclusion

Progress

Bounded Waiting

All of the mentioned

Discussion

MCQ

The following pair of processes share a common variable X.

Process A
int Y;
A1: Y = X*2;
A2: X = Y;   
 
Process B
int Z;
B1: Z = X+1;
B2: X = Z;

X is set to 5 before either process begins execution. As usual, statements within a process are executed sequentially, but statements in process A may execute in any order with respect to statements in process B. How many different values of X are possible after both processes finish executing?

two

three

four

eight

Discussion

MCQ

If we preempt a resource from a process, the process cannot continue with its normal execution and it must be ____________

aborted

rolled back

terminated

queued

Discussion

MCQ

A minimum of _____ variable(s) is/are required to be shared between processes to solve the critical section problem.

one

two

three

four

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Medical

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Introduction to Operating System

Types

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Process Synchronization

Memory Management

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Input Output Systems

Networking

Distributed Operating System

Protection and Security

Unix

Linux

MS Windows

Mixed

Operating Systems Overview

Process Management

Finding and Processing Files

File Management

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