Operating System SCDL Solved Exam Paper Assignment

Operating System SCDL Solved Exam Paper Assignment

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You can use below question answers for Practice.

Multiple Choice Multiple Answer
Question :
Find out the CPU scheduling algorithms from these options :-
Answer :
FCFS , RR , SJF
 



Question :
Main Memory of computer program is also called as :-
Answer :
RAM
 


Multiple Choice Multiple Answer
Question :
The security of a system can be improved by two management techniques, such as :-
Answer :
Threat monitoring , Audit Log
 



Question :
The separation of policy and mechanism is important for which purpose?
Answer :
Flexibility
 


Question :
A non-blocking call does not halt the execution of the application for an extended time.
Answer :
True



Question :
Windows NT uses a message passing implementation for I/O.
Answer :
True
 


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

Question :

Web servers use the ________ protocol to communicate with web browsers.
Answer :
http
 


Question :
Cache-coherency is usually a software problem and handled above the operating system level.
Answer :
False


Multiple Choice Multiple Answer
Question :
Two main jobs of a computer are :-
Answer :
I/O , Processing
 


Multiple Choice Multiple Answer
Question :
What are the ways in which a request for kernel-mode execution can occur in Linux?
Answer :
Explicitly , Implicitly



Question :
If the user-supplied password matches the password stored in the system, the system assumes that the user is ________.
Answer :
Legitimate
 


Question :
Single-indirect block is an index block which contains data of the files to which it points.
Answer :
False
 


Question :
Volatile storage loses its contents when the power to the device is removed.
Answer :
True
 



Question :
SCSI stands for :-
Answer :
Small Computer-Systems Interface
 

Multiple Choice Multiple Answer
Question :
Which are the Division D security systems ?
Answer :
Windows 3.1 , MS-DOS
 


Question :
static binding allows to hold certain properties fixed and rigid, whereas ________ binding allows object to behave as per conditions emerge.
Answer :
Dynamic
 

Question :
What are the components to memory management under Linux?
Answer :
Physical memory manager , Virtual memory manager
 


Question :
The First version of UNIX was developed in 1969 by Ken Thompson of the Research Group at :-
Answer :
Bell Laboratories
 


Question :
XML is a meta data language developed to specify data with a goal of improving interoperatability of different data sources.
Answer :
True
 

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 .
Answer :
True


Question :
C++ is basically a procedural language having extension of
Answer :
Object Oriented technology
 


Question :
The ________ of a process is represented in the PCB of a process.
Answer :
Context
 

Question :
In windows NT, the ________ facility is used to pass requests and results between client and server processes within a single machine.
Answer :
Local-procedure-call


Question :
In how many number of classes does the NRU algorithm divides pages, depending on the state of R and M?
Answer :
4
 

Multiple Choice Multiple Answer
Question :
When memory reference occurs in MULTICS the things which takes place are :-
Answer :
Segment number is used to find segment descriptor , Check is made to see if segment's page table is in memory , Page table entry for requested virtual page is examined , Offset is added to the page origin to give main memory address
 


Multiple Choice Multiple Answer
Question :
Supervisor mode is also known as :-
Answer :
System mode , Privileged mode , Monitor mode
 

Question :
How big is a class object?
Answer :
Is as big as sum of the sizes of its member variables
 


Multiple Choice Multiple Answer
Question :
The device number consists of which two parts in UNIX?
Answer :
Major device number , Minor device number



Question :
The context switch time is pure ________, because system does no useful work while switching.
Answer :
Overhead
 


Multiple Choice Multiple Answer
Question :
In Solaris 2, user-level threads may be:-
Answer :
Bound , Unbound
 


Question :
The main difference between structure and class is
Answer :
Structure does not support OOPS Class Supports OOPS.
 


Question :
Object-oriented programming focuses on the integrated data and functionality as discrete units that have both knowledge (data) and capabilities (functions). Procedural programs, on the other hand, focus on functions and how they act on data.
Answer :
True
 



Question :
A keyboard is an example of device that is accessed through a ________ interface.
Answer :
Character stream
 

Question :
The long-term scheduler controls the :-
Answer :
Degree of multiprogramming
 

Question :
Objects may communicate with each other through
Answer :
Methods
 



Question :
In queuing diagram, the arrow indicates the flow of ________ in the system.
Answer :
Processes
 


Question :
If Dog derives from Mammal, and Mammal derives from Animal, then -
Answer :
Dog inherits Animal's functions and data
 


Question :
Thread at user level is known as :-
Answer :
User thread
 



Question :
________ includes disks and tapes.
Answer :
Block devices


Question :
DMA stands for :-
Answer :
Direct Memory Access



Question :
When application issues a blocking I/O system call, the request is placed on the queue for that device. nswer :
True
Tru