Which buffering strategy is used for implementing synchronous communication?
Single message buffer
Unbounded - Capacity buffer
Finite-Bound Buffer
All can be used.
Correct Answer :
A. Single message buffer
Related Questions
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
___________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
Which of the following is an essential file of a MS-DOS boot disk?
COMMANCOM
START.COM
VER.COM
TREE.COM
__ is the program run on a computer when the computer boots up
System software
Operating system
System operations
None
Which command is used to display the contents of the text file of DOS?
Copy
Copy con
Dir
Type
When a child dies, it sends a _______________signal to its parent.
SIGCHLD
EDEADLK
WNOHANG
SEDECHLD
_______________occurs when two or more execution flows are able to run simultaneously.
Deadlock
Concurrency
race condition
interrupt
The Basic Input Output System (BIOS) resides in
RAM
ROM
The CPU
Memory Cache
__________ deals with when a modified page should be written out to secondary memory.
Cleaning policy
Fetch policy
Frame locking
None
Choose the correct statement from the following.
In computer terminology, variables are symbols which stand for some value.
An alternative method for executing the commands in the file backup is to make the file as directory.
The restricted shell gives more control to the system administrator and restricts the options of the user.
The decision making done by computer programs is in the form of conditional execution.
Which of the following does not occur during the power-on-self-test (POST)?
The scandisk utility begins to run
The video card and video memory are tested
The BIOS identification process occurs
Memory chip are checked to ensure that they are working properly
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
____________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 ____________________
A program in Execution.
An asynchronous activity.
The 'dispatchable' unit.
All A, B, C
______________ selects a process from among the ready processes to execute on the CPU.
CPU Scheduler
Loader
Dispatcher
Compiler
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
A two-byte integer called ____________is interpreted as an index into an array of inodes in a fixed, known location on disk.
an inode
an inumber
an imap
an imark
The _________takes any characters from standard input, and then echoes them to standard output.
kill character
cat command
cate command
control command
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
BSD stands for_____________________
Basic Software Division
Berkeley Software Distribution
British Software Distribution
Berkeley Software data
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
Load balancing algorithms in ______________ class use the processor and process characteristics to allocate processes to nodes.
Static
Dynamic
Deterministic
Probabilistic
Because the I/O devices are not synchronized with the CPU, some information must be exchanged between the CPU and the device to ensure that the data is received reliably. This interaction between the CPU and an I/O device is usually referred to as ____________
polling
arbitration
handshaking
interrupting
Which of the following operating system reads and reacts in actual time?
Quick Response System
Time Sharing System
Batch Processing System
Real Time System
The maximum size of a write file is limited to only
Name of the file
Extension of the file
The amount of memory in your computer
All of above
SRM stands for
Security Resource Manager
Secret Resource Manager
Security Reference Monitor
Security Reference Manual
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
All of the following are TRUE regarding virtual memory EXCEPT
Any amount of RAM can be allocated to virtual memory
The setting for the amount of hard disk drive space to allocate virtual memory can be manually change
This temporary storage is called the swap file or page file
Virtual memory is the physical space o the hard drive
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
A _____________is a collection of processors that do not share memory, peripheral devices,or a clock.
Computer system
distributed system
network
None of the above