Data Representation & Number System (Bank-PO Computer-Basics): Questions 1 - 7 of 30

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Question number: 1

» Data Representation & Number System » DBMS

MCQ▾

Question

Which of the following comments about the “++” operator are correct?

Choices

Choice (4) Response

a.

It cannot be applied to an expression

b.

It associates from the right

c.

It is a unary operator

d.

All a. , b. and c. are correct

Question number: 2

» Data Representation & Number System » Introduction

MCQ▾

Question

UTF-8 and UTF-16 are two different types of what?

Choices

Choice (4) Response

a.

File Systems

b.

Processor Architectures

c.

Character Encoding

d.

Internet connection

Question number: 3

» Data Representation & Number System » DBMS

MCQ▾

Question

Universal gate are-

Choices

Choice (4) Response

a.

NAND

b.

XOR

c.

NOR

d.

Both a. and b. are correct

Question number: 4

» Data Representation & Number System » SQL

MCQ▾

Question

ER model is most relevant to the ________ steps.

Choices

Choice (4) Response

a.

Requirement analysis

b.

Conceptual database design

c.

Logical database design

d.

All a. , b. and c. are correct

Question number: 5

» Data Representation & Number System » Hexadecimal

MCQ▾

Question

The octal equivalent of hexadecimal number 3DE is -

Choices

Choice (4) Response

a.

3170

b.

1037

c.

1736

d.

3176

Question number: 6

» Data Representation & Number System » DBMS

MCQ▾

Question

________ is a value that can be used to identify a unique row in a table

Choices

Choice (4) Response

a.

Alternative key

b.

Primary key

c.

Candidate key

d.

All of the above

Question number: 7

» Data Representation & Number System » DBMS

MCQ▾

Question

The Three Levels of the Database Architecture are ________.

Choices

Choice (4) Response

a.

External level, Logical level, internal level

b.

External level, Conceptual level, Schema level

c.

Physical level, Conceptual level, internal level

d.

External level, Conceptual level, internal level

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