SPRING 2014 ASSIGNMENT
PROGRAM MCA (REVISED FALL 2012)
SEMESTER SECOND
SUBJECT CODE & NAME - MCA2010 – OPERATING SYSTEM
CREDIT 4, BK ID B1405, MAX.
MARKS 60
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Q1. Define Operating
system. List any six functions of operating system 4+6=
10
Answer:
Operating System –
Definition
Operating System is a System
Software (Set of system programs) which provides an environment to help the
user to execute the programs. The Operating System is a
Q2. Differentiate between
direct and indirect communication. 5+5 10
Answer:
Direct Communication:
In the direct-communication
discipline, each process that wants to communicate must explicitly name the
recipient or sender of the communication. In this scheme, the send
Q3. How a virtual memory
can be implemented? What are the benefits of using virtual memory? 5+5=10
Answer:
Virtual memory
implementation:
Every process needs to be loaded into physical memory for execution.
One brute force approach to this is to map the entire logical space of the
process to physical memory, as
Q4. Differentiate between
Sequential access and Direct access methods. 5+5= 10
Answer:
Sequential
access
In this simple access method,
information in a file is accessed sequentially one record after another. To
process the ith record all the i-1 records previous to i must be accessed.
Q5. Write short notes on:
a) Global Operating System
(GOS)
b) Remote Procedure Call
(RPC) 5+5 = 10
Answer:
a) Global Operating System
(GOS)
The NOS is
responsible for activities such as memory and process management on the server.
The NOS converts a request into a task, schedules and executes it. Memory and
Q6. Differentiate between
master/slave and Symmetric Multi- processor Operating Systems 5+5=10
Answer:
Master/Slave
In this
approach, one processor – the master is dedicated to execute the operating
system. The remaining processors are slaves and form a pool of computational
processors. The
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