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