Operating System - 5

LIST OF ATTEMPTED QUESTIONS AND ANSWERS

Select The Blank
Question
static binding allows to hold certain properties fixed and rigid, whereas ________ binding allows object to behave as per conditions emerge.
Correct Answer
Dynamic
Your Answer
Dynamic

Multiple Choice Single Answer
Question
DVMA stands for :-
Correct Answer
Direct Virtual Memory Access
Your Answer
Direct Virtual Memory Access

True/False
Question
Since caches have limited size, cache management is an important design problem.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
Question
C++ is basically a procedural language having extension of
Correct Answer
Object Oriented technology
Your Answer
Object Oriented technology

Multiple Choice Single Answer
Question
The system call checks the arguments given by the application, builds a data structure to convey the arguments to the kernel and then executes a special instruction called as :-
Correct Answer
Software interrupt
Your Answer
Software interrupt

Multiple Choice Single Answer
Question
A system consists of collection of :-
Correct Answer
Processes
Your Answer
Processes

Select The Blank
Question
A________ is a memory area that stores data while they are transferred between two devices or between a device and an application.
Correct Answer
Buffer
Your Answer
Buffer

Multiple Choice Multiple Answer
Question
Find out the human-interface devices :-
Correct Answer
Screen , Keyboard , Mouse
Your Answer
Screen , Keyboard , Mouse

Multiple Choice Single Answer
Question
A procedure body implementing an operation is termed as
Correct Answer
Method
Your Answer
Method

Select The Blank
Question
The designer of a program or system might leave a hole, or ________ , in the software that only he is capable of using.
Correct Answer
Trap door
Your Answer
Trap door

True/False
Question
The principle of polymorphism helps to extend and modify the system scope through appropriate messaging mechanism.
Correct Answer
True
Your Answer
True

Multiple Choice Multiple Answer
Question
The Linux system is composed of three main bodies of code, in line with most traditional UNIX implementations. Which are :-
Correct Answer
Kernel , System libraries , System utilities
Your Answer
Kernel , System libraries , System utilities

Select The Blank
Question
Web servers use the ________ protocol to communicate with web browsers.
Correct Answer
http
Your Answer
http

Multiple Choice Single Answer
Question
The pure Object Oriented language is
Correct Answer
Java
Your Answer
Java

Multiple Choice Multiple Answer
Question
User level threads are generally :-
Correct Answer
Fast to create , Easy to manage
Your Answer
Fast to create , Easy to manage

True/False
Question
Switching the cpu to another process requires saving the state of the old process and loading the saved state for the new process.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
Question
The process by which objects of one class acquire properties of objects of other class is called
Correct Answer
Inheritance
Your Answer
Inheritance

Multiple Choice Single Answer
Question
In Object Oriented technology following expression is appropriate
Correct Answer
object=data+menthods
Your Answer
object=data+menthods

True/False
Question
A copy of inode is kept in main memory while a file is open.
Correct Answer
True
Your Answer
True

Multiple Choice Multiple Answer
Question
The advantage of dynamic loading is
Correct Answer
Unused routine is never loaded , Useful when large amount of code are needed to handle infrequently occurring cases, such as error routines , It does not require special support from the operating system
Your Answer
It does not require special support from the operating system , Unused routine is never loaded , Useful when large amount of code are needed to handle infrequently occurring cases, such as error routines

Select The Blank
Question
OOSAD begins with identification of actors, what activities they perform and building ________ model for the function.
Correct Answer
Use-case
Your Answer
Use-case

Multiple Choice Single Answer
Question
If a class fruit has object mango, the relationship is expressed as :
Correct Answer
Fruit mango
Your Answer
Fruit mango

Multiple Choice Single Answer
Question
The class bird should have object
Correct Answer
Egale
Your Answer
Egale

Select The Blank
Question
The ________ controller is the controller at the computer end of the bus.
Correct Answer
Host
Your Answer
Host

Multiple Choice Single Answer
Question
The insulation of data from direct access by the program is known as :
Correct Answer
Data hiding
Your Answer
Data hiding

Multiple Choice Multiple Answer
Question
Liner address is divided into fields like :-
Correct Answer
Dir , Page , Offset
Your Answer
Dir , Page , Offset

Multiple Choice Single Answer
Question
Every change in policy requires a change in the underlying :-
Correct Answer
Mechanism
Your Answer
Mechanism

Multiple Choice Single Answer
Question
UNIX operating system is written mostly in :-
Correct Answer
C language
Your Answer
C language

Multiple Choice Single Answer
Question
In UNIX, a file is represented by an :-
Correct Answer
Inode
Your Answer
Inode

Select The Blank
Question
If paging is enabled, the liner address is interpreted as virtual address and mapped to the physical address using ________ table.
Correct Answer
Page
Your Answer
Page

Multiple Choice Multiple Answer
Question
What are the forms of malicious access?
Correct Answer
Unauthorized destruction of data , Unauthorized reading of data , Unauthorized modification of data
Your Answer
Unauthorized reading of data , Unauthorized modification of data , Unauthorized destruction of data

Multiple Choice Multiple Answer
Question
What are the components to memory management under Linux?
Correct Answer
Physical memory manager , Virtual memory manager
Your Answer
Physical memory manager , Virtual memory manager

Multiple Choice Single Answer
Question
IPC is particularly useful in a :-
Correct Answer
Distributed environment
Your Answer
Distributed environment

Select The Blank
Question
Context switch times are highly dependent on ________ support.
Correct Answer
Hardware
Your Answer
Hardware

Multiple Choice Multiple Answer
Question
kernel threads are supported by following operating systems :-
Correct Answer
Windows NT , Solaris , Digital UNIX
Your Answer
Windows NT , Solaris , Digital UNIX

Select The Blank
Question
A ________ in NT is an object that provides a uniform interface for files, whether they are local or remote.
Correct Answer
Redirector
Your Answer
Redirector

Multiple Choice Multiple Answer
Question
In a uniprocessor system, there is :-
Correct Answer
Single processor , Single running process
Your Answer
Single processor , Single running process

True/False
Question
The basic difference between SSAD life cycle models and OOSAD life cycle models is that one is evolutionary & iterative while the other is sequential in stages of analysis, design, coding, unit test, integrated test and system test.
Correct Answer
True
Your Answer
True

Match The Following
Question
Correct Answer
Your Answer
Ready state
Process waiting for cpu
Process waiting for cpu
New state
Process created
Process created
Running state
Executing process
Executing process
Waiting state
Waiting process
Waiting process

Match The Following
Question
Correct Answer
Your Answer
Parent process
Child process
Child process
Foreground processes
Interactive processes
Interactive processes
Background processes
Batch processes
Batch processes
Light-Weight processes
Thread
Thread

Multiple Choice Single Answer
Question
In how many number of classes does the NRU algorithm divides pages, depending on the state of R and M?
Correct Answer
4
Your Answer
4

True/False
Question
When application issues a blocking I/O system call, the request is placed on the queue for that device.
Correct Answer
True
Your Answer
True

Select The Blank
Question
During execution, ________ register holds the sector for the data segment.
Correct Answer
DS
Your Answer
DS

True/False
Question
Banker's algorithm is a deadlock-avoidance algorithm.
Correct Answer
True
Your Answer
True

Multiple Choice Single Answer
Question
Model of protection can be viewed abstractly as a matrix which is known as :-
Correct Answer
Access matrix
Your Answer
Access matrix

Multiple Choice Multiple Answer
Question
Kernel threads are generally :-
Correct Answer
Slower to create , Difficult to manage
Your Answer
Slower to create , Difficult to manage

Multiple Choice Multiple Answer
Question
One-to-one model is supported by following systems :-
Correct Answer
Windows NT , OS/2
Your Answer
Windows NT , OS/2