Dec
21
In Operating System Each process has its own ?
A. pending alarms, signals and signal handlers
B. address space and global variables
C. open files
D. all of the above
Category: Operating System Mcqs
Operating System Mcqs
Dec
21
Which operations an IPC facility provides ?
A. send & delete message
B. delete & receive message
C. receive & send message
D. write & delete message
Dec
21
A process is thrashing if ?
A. it has no memory allocated to it
B. it spends a lot of time paging, than executing
C. it spends a lot of time executing, rather than paging
D. none
Dec
21
Message passing system allows processes to ?
A. share data
B. communicate with one another by resorting to shared data
C. communicate with one another without resorting to shared data
D. name the recipient or sender of the message
Dec
21
Which of the following replacement generally results in greater system throughput ?
A. Local
B. Universal
C. Public
D. Global
Dec
21
The systems which allow only one process execution at a time, are called
A. uniprogramming systems
B. uniprocessing systems
C. unitasking systems
D. none of the mentioned
Dec
21
Inter process communication allows the process to ?
A. communicate and synchronize their actions when using the same address space
B. only synchronize their actions without communication
C. communicate and synchronize their actions without using the same address space
D. do nothing
Dec
21
Global replacement algorithm has a problem ?
A. many frames can be allocated to a process
B. it is very expensive
C. it is very expensive
D. a process cannot control its own page – fault rate
Dec
21
Basic objective of an operating system is ?
A. To make the most efficient use of the computer hardware
B. To keep systems programmers employed
C. To allow people to use the computer
D. To make computers easier to use
Dec
21
In which replacement each process only select from its own set of allocated frames ?
A. Global
B. Universal
C. Public
D. Local