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4

A shared memory segment first needs to be allocated (create, using the__________ system call.

A. semget()

B. msgrcv()

C. shmget()

D. mknod()

Correct Answer :

C. shmget()


Related Questions

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4

One of the wonderful things about UNIX is its ___________names.

A. Unlimited path

B. Unlimited directory

C. Limited path

D. Limited file

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4

Which one is true for unconditional disk formatting?

A. Transfer system files after format

B. Do not check/scan surface after format

C. Destroys every byte of data on a disk by overwriting it with with blank spaces

D. All of above

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4

All of the following are TRUE regarding virtual memory EXCEPT

A. Any amount of RAM can be allocated to virtual memory

B. The setting for the amount of hard disk drive space to allocate virtual memory can be manually change

C. This temporary storage is called the swap file or page file

D. Virtual memory is the physical space o the hard drive

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4

Two clocks are said to be synchronized at a particular instance of time if the difference in time values of the two clocks is less than some specified constant. The difference in time values of two clocks is called ___________.

A. Interrupt

B. Clock Frequency

C. Clock Ticks

D. Clock Skew

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4

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 _________

A. interrupting

B. cycle stealing

C. swapping

D. paging

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4

The ______________ unpacks the call receipt messages from local RPC Runtime and makes a perfect local call to invoke the appropriate procedure in the server.

A. server Stub

B. server

C. client

D. client stub

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4

____________ file system allows sharing in multiple different locations grouped under one folder.

A. Direct

B. distributed

C. sequential

D. parallel

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4

Which buffering strategy is used for implementing synchronous communication?

A. Single message buffer

B. Unbounded - Capacity buffer

C. Finite-Bound Buffer

D. All can be used.

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4

Choose the correct statement from the following.

A. In computer terminology, variables are symbols which stand for some value.

B. An alternative method for executing the commands in the file backup is to make the file as directory.

C. The restricted shell gives more control to the system administrator and restricts the options of the user.

D. The decision making done by computer programs is in the form of conditional execution.

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4

______________ occurs when multiple processes or threads read and write data items so that the final result depends on the order of execution of instructions in the multiple processes.

A. Race condition

B. Mutual exclusion

C. Exception

D. Interrupt

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4

Identify the distributed computing model from the following statement. In this model, the user's processes need not be migrated to the server machines for getting the work done by those machines.

A. Minicomputer model

B. Workstation model

C. Workstation-Server model

D. Processor pool model

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4

_______________refers to a strategy where whenever a resource is requested, it is only granted if it cannot result in deadlock.

A. Deadlock Prevention

B. Livelock

C. Deadlock avoidance

D. none of these

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4

PVM stands for

A. Parallel Virtual Machine

B. Parallel Virtual Message

C. Process Virtual Machine

D. Process Virtual Monitor

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4

A two-byte integer called ____________is interpreted as an index into an array of inodes in a fixed, known location on disk.

A. an inode

B. an inumber

C. an imap

D. an imark

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4

A _______________in a distributed system is a string of bits or characters that is used to refer to an entity.

A. name

B. attribute

C. identifiers

D. addresses

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4

Process migration involves__________________

A. Selection of a process to be migrated

B. Selection of destination system or node

C. Actual transfer of the selected process to the destination system or node

D. All A, B, C

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4

Which of the following is drop down list?

A. Combo box

B. List

C. Text area

D. None

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4

The two sub systems of user mode layer of windows 2000 are _________ and __________

A. excel, executive

B. environment, integral

C. orbit , kernel

D. Kernel , executive

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4

Which of the following does not occur during the power-on-self-test (POST)?

A. The scandisk utility begins to run

B. The video card and video memory are tested

C. The BIOS identification process occurs

D. Memory chip are checked to ensure that they are working properly

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4

____ runs on a computer hardware and serves as a platform for other system to run on

A. System software

B. Operating system

C. Application system

D. All of above

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4

Ext2 is the standard file system of _______ and uses a block size of_____bytes

A. MS DOS,8K

B. Linux ,1024

C. Linux, 512

D. Unix, 512

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4

______________approach simplifies debugging and system verification.

A. Kernel

B. Layered

C. Extended

D. Virtual machine

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4

In layered approach each layer uses the functions and services of ------------------

A. kernel

B. lower-level layers

C. higher-level layers

D. all of these

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4

The primary purpose of an operating system is a …

A. To allow people to use the computer

B. To make the most efficient use of computer hardware

C. To make computer easier to use

D. To keep system programmer employed

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4

Which of the following is/are external commands?

A. Edit

B. Label

C. Sys

D. All of above

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4

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

A. Menu bar

B. Tool bar

C. Status bar

D. Task bar

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4

What do you mean by 0-reliable level in multicast communication?

A. Multiple responses is expected from any receivers.

B. No response is expected from any receivers.

C. Multiple responses is expected from multiple receivers.

D. A multicast message is received by all the members of the group or none.

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4

The usual su command syntax is

A. su-pwd

B. su-pd

C. su - userID

D. Sue- ID

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4

Which of the following is not essential to shut down your computer?

A. XCOPY

B. Edit

C. Sys

D. None of the above

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4

Taskbar is used for

A. Navigation program

B. Start a program

C. Switching between program

D. All of above