GATE (Graduate Aptitude Test in Engineering) Computer Science: Questions 902 - 908 of 913

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Question number: 902

» Operating System » Memory Management and Virtual Memory

MCQ▾

Question

Dirty bit for a page in a page table

Choices

Choice (4) Response

a.

Helps a avoid unnecessary writes on a programming devices

b.

Helps maintain LRU information

c.

Allows only read on a page

d.

Question does not provide sufficient data or is vague

Question number: 903

» Databases » Query Languages

MCQ▾

Question

You can add a row using SQL in a database with which of the following?

Choices

Choice (4) Response

a.

INSERT

b.

CREATE

c.

ADD

d.

MAKE

Question number: 904

» Programming and Data Structures » Stacks

MCQ▾

Question

The best data structure to check whether an arithmetic expression has balanced parentheses is a

Choices

Choice (4) Response

a.

Statck

b.

Tree

c.

Queue

d.

All of the above

Question number: 905

» Operating System » Processes

MCQ▾

Question

The computer’s processor consist of the following parts________.

Choices

Choice (4) Response

a.

Operating system and applications

b.

CPU and main memory

c.

Hard disk and floppy drive

d.

None of the above

Question number: 906

» Programming and Data Structures » Functions

MCQ▾

Question

The tightest lower bound on the number of comparisons, in the worst ease, for comparison-based sorting is of the order of

Choices

Choice (4) Response

a.

n log2 n

b.

n 2

c.

n log n

d.

n

Question number: 907

» Operating System » Threads

MCQ▾

Question

System calls are usually invoked by using

Choices

Choice (4) Response

a.

An indirect jump

b.

Polling

c.

A software interrupt

d.

All of the above

Question number: 908

» Computer Networks » ISO-OSI Stack

MCQ▾

Question

Twisted-pair cables are used to

Choices

Choice (4) Response

a.

Reduce emissions

b.

increase and reduce emissions

c.

Increase emissions

d.

Question does not provide sufficient data or is vague

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