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CDAC-CCEE operating system Mock test 1 (15 questions, time 15 minutes)

1.
Interprocess communication can be done through

messages
mails
traps
system calls
messages
2.
System calls are usually invoked by using

An indirect jump
Polling
Software interrupt
Direct jump
Software interrupt
3.
Which one of the following is true ?

Kernel is the last part of operating system to load into memory during booting.
Kernel remains in the memory during the entire computer session.
Kernel is made of various modules which cannot be loaded in running operating system.
All of the above
Kernel remains in the memory during the entire computer session.
4.
If a process is in Blocked state waiting for some I/O service. The next state it goes in is?

Ready state
Running state
Wait state
Terminated state
Ready state
5.
Where does swap space resides?

RAM
ROM
Disk
On-chip cache
Disk
6.
A system program that combines the separately compiled modules of a program into a form suitable for execution

assembler
linking loader
cross compiler
load and go
linking loader
7.
The request and release of resources are ___________.

command line statements
interrupts
system calls
special programs
system calls
8.
When a peripheral device needs immediate attention from the operating system, it generatesa(n)

Interrupt
stack
spool
page file
Interrupt
9.
Multiprogramming systems:

Are easier to develop than single programming systems
Are used only one large mainframe computers.
Execute more jobs in the same time period
Execute each job faster
Execute more jobs in the same time period
10.
______ is used in operating system to separate mechanism from policy.

single level implementation
Multi level implementation
Two level implementation
None of these
Two level implementation
11.
Which of the following systems software does the job of merging the records from two files into one?

Security software
Documentation system
Utility program
Networking software
Utility program
12.
Which is the first program run on a computer when the computer boots up?

Operating system
System software
System operations
None of these
Operating system
13.
Supervisor state is

never used
required to perform any I/O
only allowed to the operating system
entered by programs when they enter the processor
only allowed to the operating system
14.
Which one of the following can not be scheduled by the kernel?

user level thread
kernel level thread
process
none of these
user level thread
15.
Which one of the following can not be scheduled by the kernel?

user level thread
kernel level thread
process
none of these
user level thread


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