___________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
Correct Answer :
C. TERM
Related Questions
A bar that inform you the available options in your computer, opened applications, background running applications and can be used to switch between applications quickly is
Menu bar
Tool bar
Status bar
Task bar
Initialization of I/O devices is part of the_________.
CPU
MSDOS
UNIX kernel
None of the above
A small part of taskbar that has icons of background running applications is
Start button
Quick launch
Task bar
System tray
______________ 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
______________ are popular way to improve application through parallelism.
Processes
Threads
Context switching
none of these
_______refers to the block size of the DSM system, i.e. to the units of sharing and the unit of data transfer across the network when a network block fault occurs.
Granularity
Coherence
Abstraction
Synchronization
RPN stands for
Reverse Polish Notation
Record Police Notation
Record Polish Notation
Reverse Police Negation
To install the new font
Start -> setting -> font
Start -> control panel -> font -> install new font
Start -> setting -> control panel -> font -> install new font
Start -> setting -> control panel -> font
Which one of the following statements is true?
The cat command cares which file it receives as input or where the input goes.
Relative pathnames begin with something other than the slash character
UNIX shells never remember their current working directory (CW.
The cat command interprets -X as an option character rather than a pathname.
In___________, the requesting device or devices assert the signal bus_request.
Priority encoded arbitration
Distributed arbitration by self-selection
Priority arbitration
Daisy chain arbitration
PVM stands for
Parallel Virtual Machine
Parallel Virtual Message
Process Virtual Machine
Process Virtual Monitor
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
Identify the server:
This type of server generally remains in existence indefinitely. It is shared by many clients. Servers of this type are created and installed before the clients use them.
Instance-per-call-servers
Persistent Servers
Non-Persistent Servers
Semantic server
The controller can access memory in memory cycles which are not used by the particular bank of memory into which the DMA controller is writing data. This approach, called _________
interrupting
cycle stealing
swapping
paging
______________approach simplifies debugging and system verification.
Kernel
Layered
Extended
Virtual machine
Recently deleted files are stored in
Taskbar
Desktop
My computer
Recycle bin
Ext2 is the standard file system of _______ and uses a block size of_____bytes
MS DOS,8K
Linux ,1024
Linux, 512
Unix, 512
_______________occurs when two or more execution flows are able to run simultaneously.
Deadlock
Concurrency
race condition
interrupt
What do you mean by 0-reliable level in multicast communication?
Multiple responses is expected from any receivers.
No response is expected from any receivers.
Multiple responses is expected from multiple receivers.
A multicast message is received by all the members of the group or none.
Underlined text, such as text and folder names is referred to as
Hyperlink
Menu
Source drive
None of these
Find out the characteristics of System-oriented names:
They are large integers or bit strings.
They are of the same size
Generally shorter than human-oriented names and are easy for manipulations like hashing, sorting and so on.
All A, B, C
In Multics, a process could have up to 256K segments, but each segment was limited to ___________ 64K words.
64K
32K
1024K
112K
______________ selects a process from among the ready processes to execute on the CPU.
CPU Scheduler
Loader
Dispatcher
Compiler
____________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
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
In layered approach each layer uses the functions and services of ------------------
kernel
lower-level layers
higher-level layers
all of these
_____________ manage the name spaces and binds an object to its location.
Name Server
Name agent
Context
Name resolution
Having data belonging to two independent processes in the same page is called____________.
Buffering
Blocking
Message-passing
False sharing
Which of the following is drop down list?
Combo box
List
Text area
None
An option commonly takes the form of a _____followed by __________characters.
dot, one or more
dash, only one
dash, one or more
dot,only two