__________ deals with when a modified page should be written out to secondary memory.
Cleaning policy
Fetch policy
Frame locking
None
Correct Answer :
A. Cleaning policy
Related Questions
Having data belonging to two independent processes in the same page is called____________.
Buffering
Blocking
Message-passing
False sharing
When a peripheral device needs immediate attention from the operating system, it generates a(n)
Page file
Spool
Stack
Interrupt
What is Dr. Watson?
IT Expert
Diagnosis tool
Surgeon
None
Windows 2000 supports -------------- type of file system
NTFS
EFS
FEFS
EFFS
In ____________ location policies a random node is polled to check its state and the task is transferred if it will not be overloaded; polling is continued until a suitable node is found.
Threshold
Shortest
Bidding
Pairing
___________variable is not automatically created on all UNIX systems but is used by so many programs that it is considered a standard environment variable.
IFS
TERM
PATH
When copying more than one file at a time, you must specify an existing directory as the ___________
Source
Sub directory
Destination.
Path name
_____________ manage the name spaces and binds an object to its location.
Name Server
Name agent
Context
Name resolution
A SCSI device can transfer up to----------- of information per second.
40 Mbytes
60 Mbytes
40 Gbytes
60 Gbytes
SRM stands for
Security Resource Manager
Secret Resource Manager
Security Reference Monitor
Security Reference Manual
_____________typically contains temporary data such as subroutine parameter, return address, and temporary variables.
Current value of Program Counter
Value of the variables
The process stack
A data section
In case of modification an unauthorized party not only gains access to but tampers with an asset. This is an attack on ____________________.
availability
confidentiality
integrity
authenticity
In_________________ model, when a process does a release access, the contents of all the modifications are not immediately sent to other nodes but they are sent only on demand.
Release Consistency Model
Lazy Release consistency model
Weak Consistency Model
Processor Consistency Model
_______________refers to a strategy where whenever a resource is requested, it is only granted if it cannot result in deadlock.
Deadlock Prevention
Livelock
Deadlock avoidance
none of these
Transparent RPC mechanism refers to :
Existance of multuple computer visible and a provide a single system image to its users.
It runs the program transparently.
It is a technique to shift the program to other computer.
It is technique in which local procedures and remote procedures are indistinguishable to programmers.
What is dispatch latency?
The time taken by the dispatcher to stop one process and start another
The whole time taken by all processor
The time taken by the processor to write a file into disk
None of Above
Taskbar is used for
Navigation program
Start a program
Switching between program
All of above
The Bankers algorithm is used
to prevent deadlock
to rectify deadlock
to detect deadlock
to slove deadlock
Which of the following is/are external commands?
Edit
Label
Sys
All of above
Which one is true for unconditional disk formatting?
Transfer system files after format
Do not check/scan surface after format
Destroys every byte of data on a disk by overwriting it with with blank spaces
All of above
PVM stands for
Parallel Virtual Machine
Parallel Virtual Message
Process Virtual Machine
Process Virtual Monitor
Pick the wrong statement from the following.
UNIX systems originally came with a command interpreter called the Bourne Shell.
The cat command takes any characters from standard input, and then echoes them to standard output.
A pipe is a means of taking the output of one command and directing it as another command.
The manual entry is called a man page, even though it is often more than one page long.
______________ is a situation in which two computer programs sharing the same resource are effectively preventing each other from accessing the resource, resulting in both programs ceasing to function.
Semaphore
Deadlock
Mutual Exclusion
No preemption
____________approach can place the data directly into the memory or take the data directly from the memory without direct intervention from the processor.
DMA
Daisy chain arbitration
polling
none of these
A process is _________________
program in main memory
Program in cache memory
program in secondary storage
program in execution
A shared memory segment first needs to be allocated (create, using the__________ system call.
semget()
msgrcv()
shmget()
mknod()
In case of ________________the server automatically copies files to other servers after the files are written.
Explicit replication
Implicit replication
Lazy file replication
Group file replication
Which is the layer of a computer system between the hardware and the user program
Operating system
Operating environment
System environment
None
The primary purpose of an operating system is:
To allow people to use the computer,
To make the most efficient use of the computer hardware
To make computers easier to use
To keep systems programmers employed
The ______________ unpacks the call receipt messages from local RPC Runtime and makes a perfect local call to invoke the appropriate procedure in the server.
server Stub
server
client
client stub