LIST OF ATTEMPTED QUESTIONS AND ANSWERS
Multiple Choice Multiple Answer
Question
Various storage systems available possesses which two characteristics?
Correct Answer
Volatile , Non-volatile
Your Answer
Volatile , Non-volatile
Multiple Choice Multiple Answer
Question
Most CPUs have two interrupt request lines. Which are they?
Correct Answer
Maskable , Non maskable
Your Answer
Maskable , Non maskable
Select The Blank
Question
A ________ is a group of NT server machines that share a common security policy and user databases.
Correct Answer
Domain
Your Answer
Domain
Select The Blank
Question
An ________ is a dedicated, special purpose CPU found in mainframes and in other high-end systems.
Correct Answer
I/O channel
Your Answer
I/O channel
Multiple Choice Single Answer
Question
The CPU is allocated to the selected process by the :-
Correct Answer
Dispatcher
Your Answer
Dispatcher
Multiple Choice Single Answer
Question
In JAVA , the derived class is known as
Correct Answer
Subclass
Your Answer
Subclass
Select The Blank
Question
The Pentium supports four protection levels with ________ as least privileged level.
Correct Answer
3
Your Answer
3
Select The Blank
Question
________ of an object remains unchanged even though its state and properties change.
Correct Answer
Identity
Your Answer
Identity
True/False
Question
One way to achieve portability is to write software in standard version of high level language and to develop portable system and application software .
Correct Answer
True
Your Answer
True
Multiple Choice Single Answer
Question
Software may trigger an interrupt by executing a special operation called :-
Correct Answer
System call
Your Answer
System call
Multiple Choice Single Answer
Question
In Object Oriented technology following expression is appropriate
Correct Answer
object=data+menthods
Your Answer
object=data+menthods
Multiple Choice Multiple Answer
Question
The two versions of NT are :
Correct Answer
WindowsNT workstations , WindowsNT server
Your Answer
WindowsNT workstations , WindowsNT server
Match The Following
Question
Correct Answer
Your Answer
We can define abstract operation on abstract data
Data abstraction
Data abstraction
Process of sharing properties of the higher level object or class
Inheritance
Inheritance
Ability to inherit attributes and methods from 2 or more objects or classes
Multiple inheritance
Multiple inheritance
Ability to send a message to several objects and to allow receiving object to respond method specified on the object.
Ploymorphism
Ploymorphism
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
True/False
Question
In Public Key Encryption, each user has both a public and a private key.
Correct Answer
True
Your Answer
True
True/False
Question
Data transfer from cache to CPU and registers is usually a software function, with little operating system intervention.
Correct Answer
False
Your Answer
False
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
IPC is particularly useful in a :-
Correct Answer
Distributed environment
Your Answer
Internet environment
Multiple Choice Single Answer
Question
IPC provides a mechanism to allow processes to communicate and to synchronize their actions without sharing the same :-
Correct Answer
Address space
Your Answer
Semaphore
Multiple Choice Multiple Answer
Question
Supervisor mode is also known as :-
Correct Answer
Privileged mode , Monitor mode , System mode
Your Answer
System mode , Privileged mode , Monitor mode
Select The Blank
Question
Assuming that the segment is in memory and the offset is in range, the Pentium then adds the ________ bit base field in the descriptor to the offset to form linear address.
Correct Answer
32
Your Answer
32
Question
At system boot time, the hardware starts in monitor mode.
Correct Answer
True
Your Answer
True
Multiple Choice Single Answer
Question
The main difference between structure and class is
Correct Answer
Structure does not support OOPS Class Supports OOPS.
Your Answer
Structure does not support OOPS Class Supports OOPS.
Select The Blank
Question
A ________ controller is built into each disk drive.
Correct Answer
Disk
Your Answer
Disk
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
True/False
Question
The hardware allows privileged instructions to be executed in only user mode.
Correct Answer
False
Your Answer
False
Multiple Choice Multiple Answer
Question
An object type in windows NT is a system defined data type that has two things associated with it, which are they?
Correct Answer
Set of attributes , Set of methods
Your Answer
Set of attributes , Set of methods
Select The Blank
Question
The kernel module that controls a device is a ________ .
Correct Answer
Device driver
Your Answer
Device driver
Multiple Choice Single Answer
Question
If process P and Q want to communicate, they must send messages to and receive messages from each other: Thus link established between two process is known as :-
Correct Answer
Communication link
Your Answer
Direct link
Multiple Choice Multiple Answer
Question
Dispatcher functions involves the following :-
Correct Answer
Switching context , Switching to user mode
Your Answer
Switching context , Switching to user mode
Select The Blank
Question
In windows NT, the ________ facility is used to pass requests and results between client and server processes within a single machine.
Correct Answer
Local-procedure-call
Your Answer
Local-procedure-call
True/False
Question
If some of the pages are shared with other process, the pages in memory and on the disk can only be released when the last process using them has terminated.
Correct Answer
True
Your Answer
True
Select The Blank
Question
The Solaris developers reimplemented the ________ using in-kernel thread to eliminate the context switch involved in moving each character between daemons and the kernel.
Correct Answer
Telnet daemon
Your Answer
Context-switch daemon
Multiple Choice Single Answer
Question
Modern operating systems are :-
Correct Answer
Interrupt driven
Your Answer
Interrupt driven
Match The Following
Question
Correct Answer
Your Answer
Bounded-buffer
Fixed size buffer
Fixed size buffer
Producer
Produces process
Produces process
Consumer
Consumes process
Consumes process
Unbounded-buffer
No limit on size of buffer
No limit on size of buffer
Multiple Choice Multiple Answer
Question
In Linux, the paging system can be divided into sections, namely:-
Correct Answer
Policy algorithm , Paging mechanism
Your Answer
Policy algorithm , Paging mechanism
Multiple Choice Single Answer
Question
A process data section contains:-
Correct Answer
Global variables
Your Answer
Temporary data
True/False
Question
OOSAD approach is applicable only to stable systems.
Correct Answer
False
Your Answer
False
True/False
Question
Segment length may change during execution.
Correct Answer
True
Your Answer
True
Multiple Choice Multiple Answer
Question
The movement of information between levels of a storage hierarchy may be of two types depending on the hardware design and the controlling operating system software such as :-
Correct Answer
Explicit , Implicit
Your Answer
Explicit , Implicit
Multiple Choice Single Answer
Question
Collection of similar datatypes is called as
Correct Answer
Array
Your Answer
Array
True/False
Question
At Human level, user must be screened carefully so that the chance of authorizing a user who then gives access to an intruder is reduced.
Correct Answer
True
Your Answer
True
True/False
Question
The user process issues a network I/O system call to send the character to the remote machine.
Correct Answer
True
Your Answer
False
Multiple Choice Multiple Answer
Question
Most computers have hardware clocks and timers that provide three basic functions, such as :-
Correct Answer
Give the current time , Give the elapsed time , Set a timer to trigger operation at certain time
Your Answer
Give the current time , Give the elapsed time , Set a timer to trigger operation at certain time
Multiple Choice Single Answer
Question
C++ is basically a procedural language having extension of
Correct Answer
Object Oriented technology
Your Answer
Object Oriented technology
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