The _________takes any characters from standard input, and then echoes them to standard output.
kill character
cat command
cate command
control command
Correct Answer :
B. cat command
Related Questions
An orphan process is automatically inherited by the _____and becomes a _______ of this process.
'init' process, father
'init' process, child
'initial process, father
'it' process, child
Wiretapping to capture data in a network is an example of ________________
interruption
interception
fabrication
modification
In ________________________ each node periodically sends a message to the time server.
Passive Time Server Centralized Algorithm
Active Time Server Centralized Algorithm
Global Averaging Distributed Algorithms
Localized Averaging Distributed Algorithms
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
The primary purpose of an operating system is a …
To allow people to use the computer
To make the most efficient use of computer hardware
To make computer easier to use
To keep system programmer employed
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
The problem with logical dumping is ________________
very costly
very slow
human errors
all of these
The two sub systems of user mode layer of windows 2000 are _________ and __________
excel, executive
environment, integral
orbit , kernel
Kernel , executive
Process migration involves__________________
Selection of a process to be migrated
Selection of destination system or node
Actual transfer of the selected process to the destination system or node
All A, B, C
In Windows, start button is used to
Device setting
Run applications
All of above
Turn off the system
Having data belonging to two independent processes in the same page is called____________.
Buffering
Blocking
Message-passing
False sharing
An unauthorized party inserts counterfeit objects into the system is called_________________
interruption
interception
fabrication
modification
In case of ____________________transparency a file can transparently move to another server.
Location
Migration
Replication
Concurrency
Whenever you move a directory from one location to another
The directory is moved the source file is not moved
All the subdirectory inside that directory are moved
All files inside the directory are moved
Both b and c
______________approach simplifies debugging and system verification.
Kernel
Layered
Extended
Virtual machine
_____________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
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
A process is already split into pieces, called________________.
Tasks
Program
Processors
Routines
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.
The operating system is the most common type of ___ Software
System
Application
Word processing software
Communication
A standard UNIX system includes a set of ___________ and a set of ___________.
Commands ,files
Libraries, Applications
Libraries, files
Files, Applications
When a peripheral device needs immediate attention from the operating system, it generates a(n)
Page file
Spool
Stack
Interrupt
A shared memory segment first needs to be allocated (create, using the__________ system call.
semget()
msgrcv()
shmget()
mknod()
A SCSI device can transfer up to----------- of information per second.
40 Mbytes
60 Mbytes
40 Gbytes
60 Gbytes
You can use print manage window
To cancel the print job
To check status of files in the print queue
To interrupt printing
All of the above
A solution to starvation is _____________.
segmentation
Aging
Paging
virtual memory
__________ deals with when a modified page should be written out to secondary memory.
Cleaning policy
Fetch policy
Frame locking
None
A process may create a new process by executing ___________system call.
init
fork
create
new
_____________ manage the name spaces and binds an object to its location.
Name Server
Name agent
Context
Name resolution