Get fully solved assignment. Buy online from website
online store
or
plz drop a mail with your sub code
we will revert you within 2-3 hour or immediate
Charges rs
125/subject and rs 625/semester only.
if urgent then call us
on 08791490301, 08273413412
[Winter, 2015] ASSIGNMENT
PROGRAM – BCA (REVISED FALL 2012)
SEMESTER - II
SUBJECT CODE & NAME - BCA2010 –
OPERATING SYSTEM
CREDIT
– 4 BK ID - B1405 MAX. MARKS =60
Q1.
Define operating system. Explain any four major functions of operating system
2+8 = 10
Answer:
Operating System is a System Software (Set of system programs) which provides
an environment to help the user to execute the programs. An operating system
(OS) is a software program that manages the hardware and software resources of
a
Q2.
What is hardware virtual machine? Discuss the three ways through which the
software virtualization can be done 4+6=10
Answer:
Hardware
Virtual Machine
The original meaning of
virtual machine, sometimes called a hardware virtual machine, is that of a number
of discrete identical execution environments
Q3.
Explain the following scheduling algorithm [10 Marks].
a)
First come first served
b)
Shortest Job First 5+5=10
Answer:
a) First-Come-First-Served Scheduling
Algorithm
This is one of the
brute force algorithms. A process that requests for the CPU first is allocated
the CPU first. Hence, the name first come first serve. The FCFS algorithm is
implemented by using a first-in-first-out (FIFO) queue
Q4.
Define deadlock. Discuss any four conditions that lead to deadlock 4+6= 10
Answer:
Definition:
Several processes compete for a finite set of
resources in a multi-programmed environment. A process requests for resources
that may not be readily available at the time of the request. In such a case
the process goes into a wait state. It
Q5.
Explain LRU page replacement algorithms with an example 4+6= 10
Answer:
LRU
page replacement algorithm
The main distinction
between FIFO and optimal algorithm is that the FIFO algorithm uses the time
when a page was brought into memory (looks back) whereas the optimal algorithm
uses the time when a page is to be
Q6.
What is computer virus? List the types of virus and its various infection
methods. 4+6 = 10
Answer: Computer Virus
A computer virus is written with
an intention of infecting other programs. It is a part of a program that
piggybacks on to a valid
Get fully solved assignment. Buy online from website
online store
or
plz drop a mail with your sub code
we will revert you within 2-3 hour or immediate
Charges rs
125/subject and rs 625/semester only.
if urgent then call us
on 08791490301, 08273413412
No comments:
Post a Comment