Computer Science MCQs - MCQtimes.com

Computer Science Fundamentals

Collect->Communicate->__________->Act

Acknowledge

Analyze

Examine

Rectify

The correct option is analyze. This shows the lifecycle of IoT.

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Computer Science Fundamentals

A set of hard disk drives with a controller mounted in a single box, forming a single large storage unit is ____________

Disk array

Drives

Compact drives

Multi-cores

The answer is disk array. It is commonly known as RAID. As a secondary storage device, provides enhanced performance, enhanced storage capacity and reliability.

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OS The Linux System

The essential content(s) in each entry of a page table is/are ____________

Virtual page number

Page frame number

Both virtual page number and page frame number

Access right information

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Computer Science Fundamentals

A freeware GNU Debugger is __________

GDB

GNB

FDB

FNB

GDB is a free GNU debugger which runs on most of the Unix-like platforms. It works for multiple programming languages. GNU is free software.

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OS File Systems and Their Implementation

A systems program such as fsck in ______ is a consistency checker.

UNIX

Windows

Macintosh

Solaris

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OS Real Time Operating Systems(RTOS)

T shares of time are allocated among all processes out of N shares in __________ scheduling algorithm.

rate monotonic

proportional share

earliest deadline first

none of the mentioned

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OS Process Synchronization

A locking protocol is one that ____________

governs how locks are acquired

governs how locks are released

governs how locks are acquired and released

none of the mentioned

Author: rikazzz Comment

Computer Science Fundamentals

______________ define how the locations can be used.

Data types

Attributes

Links

Data Objects

Attributes can determine how any location can be used. Attributes can be type, name, component, etc. Data objects are the variables and constants in a program.

Author: rikazzz Comment

OS The Linux System

In UNIX, the set of masked signals can be set or cleared using the ________ function.

sigmask

sigmaskproc

sigprocmask

sigproc

Author: rikazzz Comment

OS Processes

The number of processes completed per unit time is known as __________

Output

Throughput

Efficiency

Capacity

The number of processes completed per unit time is known as Throughput. Suppose there are 4 processes A, B, C & D they are taking 1, 3, 4 & 7 units of time respectively for their executions. For 10 units of time, throughput is high if process A, B & C are running first as 3 processes can execute. If process C runs first then throughput is low as maximum only 2 processes can execute. Throughput is low for processes which take a long time for execution. Throughput is high for processes which take a short time for execution.

Author: rikazzz Comment