Semaphores function is to
Semaphores function is to
Which of the following does not interrupt an running process--
Which of the following does not interrupt an running process--
Files can have ?
Files can have ?
Disk scheduling includes deciding
Disk scheduling includes deciding
Size of virtual memory depends on--
Size of virtual memory depends on--
Which of the following memory allocation scheme is subject to external fragmentation ?
Which of the following memory allocation scheme is subject to external fragmentation ?
Fragmentation of a file system
Fragmentation of a file system
Dijkstra's algorithm deals with
Dijkstra's algorithm deals with
In which of the following usually a front end processor is used ?
In which of the following usually a front end processor is used ?
Four necessary conditions for deadlock are non pre-emption, circular wait, hold and wait and-
Four necessary conditions for deadlock are non pre-emption, circular wait, hold and wait and-
By which of following the problem of thrashing is significantly affected ?
By which of following the problem of thrashing is significantly affected ?
Banker's algorithm for resource allocation deals with ?
Banker's algorithm for resource allocation deals with ?
Supervisor state is only allowed to ?
Supervisor state is only allowed to ?
Which one is true
Which one is true
Distributed systems should ?
Distributed systems should ?
Which process is known for initializing a microcomputer with its OS
Which process is known for initializing a microcomputer with its OS
Dispatcher function is to
Dispatcher function is to
Memory protection is of no use in single user system.
Memory protection is of no use in single user system.
Which is non-pre-emptive-
Which is non-pre-emptive-
Which is single user operating system
Which is single user operating system
If two files on same partition point to the same inode structure they are called ?
If two files on same partition point to the same inode structure they are called ?
Disk scheduling involves deciding ?
Disk scheduling involves deciding ?
Operating system is
Operating system is
Which scheduling policy is most suitable for time shared operating system ?
Which scheduling policy is most suitable for time shared operating system ?
A public key encryption system-
A public key encryption system-
The LRU algorithm
The LRU algorithm
Belady anomaly occurs in ?
Belady anomaly occurs in ?
Macintosh computer uses
Macintosh computer uses
Creating a job queue is a function of-
Creating a job queue is a function of-
Which of following is not an advantage of multiprogramming ?
Which of following is not an advantage of multiprogramming ?
Spooling is most beneficial where
Spooling is most beneficial where
Root directory of a disk should be placed
Root directory of a disk should be placed
Which operating system reacts in the actual time
Which operating system reacts in the actual time
The part of machine level instruction, which tells the central processor what has to be done, is
The part of machine level instruction, which tells the central processor what has to be done, is
A high paging rate-
A high paging rate-
Dynamic allocation of storage areas with VSAM files is accomplished by
Dynamic allocation of storage areas with VSAM files is accomplished by
A hardware device which is capable of executing a sequence of instructions, is known as
A hardware device which is capable of executing a sequence of instructions, is known as
To avoid the race condition, the number of processes that may be simultaneously inside the critical section is
To avoid the race condition, the number of processes that may be simultaneously inside the critical section is
Relocation bits used by relocating loader are specified by
Relocation bits used by relocating loader are specified by
Banker's algorithm deals with
Banker's algorithm deals with
Problem of thrashing is affected significantly by
Problem of thrashing is affected significantly by
In real time OS, which is most suitable scheduling scheme-
In real time OS, which is most suitable scheduling scheme-
A series of statements explaining how the data is to be processed is called--
A series of statements explaining how the data is to be processed is called--
Which technique is used by operating systems to execute several programs concurrently by switching back and forth
Which technique is used by operating systems to execute several programs concurrently by switching back and forth
Dirty bit is used to show
Dirty bit is used to show
In which scheduling policies, context switching never takes place
In which scheduling policies, context switching never takes place
Which scheduling policy is best suited for time-sharing operating systems
Which scheduling policy is best suited for time-sharing operating systems
Semophores are used to solve the problem of
Semophores are used to solve the problem of
What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition ?
What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition ?
Reference bit is used for
Reference bit is used for
What is the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer user's productivity?
What is the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer user's productivity?
What are global locks ?
What are global locks ?
Which of following need a device driver
Which of following need a device driver
Which operating system use write through catches
Which operating system use write through catches
Memory protection is normally done by
Memory protection is normally done by
UNIX is a single user operating system.
UNIX is a single user operating system.
Belady anamoly occurs in
Belady anamoly occurs in
File record length
File record length
Daisy chain is a device for-
Daisy chain is a device for-
Which among following scheduling algorithms give minimum average waiting time
Which among following scheduling algorithms give minimum average waiting time
Which among following scheduling algorithms give minimum average waiting time
Which among following scheduling algorithms give minimum average waiting time
Seek analysis is for ?
Seek analysis is for ?
Which of the following is always there in a computer ?
Which of the following is always there in a computer ?
If the CPU scheduling policy is FCFS, then what would be average waiting time ?
If the CPU scheduling policy is FCFS, then what would be average waiting time ?
Which type of software can be used to merge data of two files in one file ?
Which type of software can be used to merge data of two files in one file ?
Shortest Job First executes first the job
Shortest Job First executes first the job
For multiprogramming operating system
For multiprogramming operating system
Remote computing services involves the use of timesharing and-
Remote computing services involves the use of timesharing and-
Remote computing services involves the use of ?
Remote computing services involves the use of ?
Poor response times are caused by--
Poor response times are caused by--
Are easier to develop than single programming systems----
Are easier to develop than single programming systems----
Main function of shared memory is:
Main function of shared memory is:
Paging is a method of memory allocation.
Paging is a method of memory allocation.
Scissoring enables
Scissoring enables
What is the name of values that are automatically provided by software to reduce keystrokes ?
What is the name of values that are automatically provided by software to reduce keystrokes ?
