Question # 1

Which is a numeric data type ?

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float

int

Both a and b

char

A candidate key is

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Primary key

The primary key selected to be the key of relation

A group attribute that can be the primary key

All of them

a+=b is equivalent to

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a+=b

a=+b

a=a+b

b=b+a

Which of the following operators has lowest precedence

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!

+

=

The logical not operator denoted by is

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Ternary operator

Unary operator

a=a+b

b=b+a

An attribute that uniquely identify each row in a relation is called

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Column

Foreign

Primary key

Duplicate key

How many primary keys can a table have

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One

At least one but not more than two

Between 1-5

No limit

DBA Stands for

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Database application

Database accumulator

Database administer

Database administration

An integer variable can store the value:

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-1.1

"123"

32898

5.5

Which is NOT a valid statement to initialize a variable?

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int n=100;

long,population=15000;

char n []="hello World";

cons int N=100;

Variables are created in

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Ram

Rom

Hard disk

Cache

Which of the following data type is used to store string value:

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char

float

string

long

Which is a valid statement for initializing of a variable?

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int n=100;

int x=50, y=75;

char grade='a'

All of these

Which of the following are valid variable names?

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Long

Integer

Notlongenough

Both B and C

Which of the following statements is NOT legal?

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char ch='b';;

char ch='0'

char ch=65;

char ch="cc"

Which of the following is used to separate each variable while declaring more than one variable on the same line?

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Commas

Colons

Pipes

Semicolons

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Computer Science Ics Part 2 Chapter 9 Online Test MCQs With Answers

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