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
Which is single user operating system
Which is single user operating system
Belady anomaly occurs in ?
Belady anomaly occurs in ?
Which operating system use write through catches
Which operating system use write through catches
Semophores are used to solve the problem of
Semophores are used to solve the problem of
Macintosh computer uses
Macintosh computer uses
Distributed systems should ?
Distributed systems should ?
Remote computing services involves the use of timesharing and-
Remote computing services involves the use of timesharing and-
Root directory of a disk should be placed
Root directory of a disk should be placed
Dynamic allocation of storage areas with VSAM files is accomplished by
Dynamic allocation of storage areas with VSAM files is accomplished by
Files can have ?
Files can have ?
Scissoring enables
Scissoring enables
UNIX is a single user operating system.
UNIX is a single user operating system.
Relocation bits used by relocating loader are specified by
Relocation bits used by relocating loader are specified by
Size of virtual memory depends on--
Size of virtual memory depends on--
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 ?
Main function of shared memory is:
Main function of shared memory is:
Supervisor state is only allowed to ?
Supervisor state is only allowed to ?
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--
Spooling is most beneficial where
Spooling is most beneficial where
Poor response times are caused by--
Poor response times are caused by--
In which of the following usually a front end processor is used ?
In which of the following usually a front end processor is used ?
Which operating system reacts in the actual time
Which operating system reacts in the actual time
Dirty bit is used to show
Dirty bit is used to show
Belady anamoly occurs in
Belady anamoly occurs in
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 process is known for initializing a microcomputer with its OS
Which process is known for initializing a microcomputer with its OS
Seek analysis is for ?
Seek analysis is for ?
Dispatcher function is to
Dispatcher function is to
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
Which of following is not an advantage of multiprogramming ?
Which of following is not an advantage of multiprogramming ?
Disk scheduling involves deciding ?
Disk scheduling involves deciding ?
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
Which of the following memory allocation scheme is subject to external fragmentation ?
Which of the following memory allocation scheme is subject to external fragmentation ?
The LRU algorithm
The LRU algorithm
Reference bit is used for
Reference bit is used for
Are easier to develop than single programming systems----
Are easier to develop than single programming systems----
Paging is a method of memory allocation.
Paging is a method of memory allocation.
Semaphores function is to
Semaphores function is to
Which is non-pre-emptive-
Which is non-pre-emptive-
Problem of thrashing is affected significantly by
Problem of thrashing is affected significantly by
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 ?
Disk scheduling includes deciding
Disk scheduling includes deciding
Operating system is
Operating system is
Remote computing services involves the use of ?
Remote computing services involves the use of ?
File record length
File record length
In real time OS, which is most suitable scheduling scheme-
In real time OS, which is most suitable scheduling scheme-
Dijkstra's algorithm deals with
Dijkstra's algorithm deals with
Creating a job queue is a function of-
Creating a job queue is a function of-
A public key encryption system-
A public key encryption system-
Which among following scheduling algorithms give minimum average waiting time
Which among following scheduling algorithms give minimum average waiting time
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 ?
A high paging rate-
A high paging rate-
Which of the following does not interrupt an running process--
Which of the following does not interrupt an running process--
Which of following need a device driver
Which of following need a device driver
Memory protection is normally done by
Memory protection is normally done by
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 ?
Banker's algorithm deals with
Banker's algorithm deals with
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
Which scheduling policy is most suitable for time shared operating system ?
Which scheduling policy is most suitable for time shared operating system ?
Shortest Job First executes first the job
Shortest Job First executes first the job
Memory protection is of no use in single user system.
Memory protection is of no use in single user system.
For multiprogramming operating system
For multiprogramming operating system
Daisy chain is a device for-
Daisy chain is a device for-
Fragmentation of a file system
Fragmentation of a file system
Which one is true
Which one is true
Which of the following is always there in a computer ?
Which of the following is always there in a computer ?
By which of following the problem of thrashing is significantly affected ?
By which of following the problem of thrashing is significantly affected ?
In which scheduling policies, context switching never takes place
In which scheduling policies, context switching never takes place
Banker's algorithm for resource allocation deals with ?
Banker's algorithm for resource allocation deals with ?
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 ?
Which scheduling policy is best suited for time-sharing operating systems
Which scheduling policy is best suited for time-sharing operating systems
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-
Which among following scheduling algorithms give minimum average waiting time
Which among following scheduling algorithms give minimum average waiting time
