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4

______________ are popular way to improve application through parallelism.

A. Processes

B. Threads

C. Context switching

D. none of these

Correct Answer :

B. Threads


Related Questions

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4

A SCSI device can transfer up to----------- of information per second.

A. 40 Mbytes

B. 60 Mbytes

C. 40 Gbytes

D. 60 Gbytes

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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

_______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.

A. Granularity

B. Coherence

C. Abstraction

D. Synchronization

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4

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 ____________

A. polling

B. arbitration

C. handshaking

D. interrupting

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4

A standard UNIX system includes a set of ___________ and a set of ___________.

A. Commands ,files

B. Libraries, Applications

C. Libraries, files

D. Files, Applications

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4

_____________typically contains temporary data such as subroutine parameter, return address, and temporary variables.

A. Current value of Program Counter

B. Value of the variables

C. The process stack

D. A data section

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4

The Basic Input Output System (BIOS) resides in

A. RAM

B. ROM

C. The CPU

D. Memory Cache

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4

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.

A. Release Consistency Model

B. Lazy Release consistency model

C. Weak Consistency Model

D. Processor Consistency Model

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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

When a peripheral device needs immediate attention from the operating system, it generates a(n)

A. Page file

B. Spool

C. Stack

D. Interrupt

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4

In MS-DOS, the interfaces and levels of functionality are _______________

A. not well separated.

B. well separated

C. independent

D. dependent

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4

______________is a mechanism the prevents two or more processes from accessing a shared resource simultaneously.

A. Livelock

B. Preemption

C. Semaphore

D. either or

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4

Which one of the following statements is true?

A. The cat command cares which file it receives as input or where the input goes.

B. Relative pathnames begin with something other than the slash character

C. UNIX shells never remember their current working directory (CW.

D. The cat command interprets -X as an option character rather than a pathname.

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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 ______________ 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

Which of the following is/are external commands?

A. Edit

B. Label

C. Sys

D. All of above

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4

SRM stands for

A. Security Resource Manager

B. Secret Resource Manager

C. Security Reference Monitor

D. Security Reference Manual

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4

The algorithm should be scalable i.e. _____________.

A. The system should not enter a state in which nodes spend all their time migrating processes or exchanging control messages without doing any useful work.

B. The system should be able to handle small and large networked systems.

C. The algorithm should not be affected by the crash of one or more nodes in the system.

D. The process assignment decisions should be based on the current load of the system and not on some fixed static policy.

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4

Which command is used to display the contents of the text file of DOS?

A. Copy

B. Copy con

C. Dir

D. Type

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4

In___________, the requesting device or devices assert the signal bus_request.

A. Priority encoded arbitration

B. Distributed arbitration by self-selection

C. Priority arbitration

D. Daisy chain arbitration

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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

______________ refers to the technology in which some space in hard disk is used as an extension of main memory.

A. Cache memory

B. Paging

C. Virtual memory

D. Associative memory

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4

Which of the following is an essential file of a MS-DOS boot disk?

A. COMMANCOM

B. START.COM

C. VER.COM

D. TREE.COM

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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

Transparent RPC mechanism refers to :

A. Existance of multuple computer visible and a provide a single system image to its users.

B. It runs the program transparently.

C. It is a technique to shift the program to other computer.

D. It is technique in which local procedures and remote procedures are indistinguishable to programmers.

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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

Wiretapping to capture data in a network is an example of ________________

A. interruption

B. interception

C. fabrication

D. modification

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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

The _________takes any characters from standard input, and then echoes them to standard output.

A. kill character

B. cat command

C. cate command

D. control command

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4

Most accurate global time is based on oscillations of the ______________

A. Cesium-130 atom

B. Cesium-133 atom

C. Cesium-136 atom

D. Cesium-139 atom