Question # 1

The number of bytes used by double data type in C is:

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2

8

12

16

Which of the following is not a good primary key

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Social security number

Order number

Zip code

STD ID number

An integer variable can store the value:

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-1.1

"123"

32898

5.5

Which data type is used to store numeric value with no decimal point?

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int

char

float

All

a+=b is equivalent to:

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b+=a

a=+b

a=a+b

b=b+a

Which of the following data type offers the highest precisions

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Float

Long int

Long double

Unsigned long unit

Which of the following is a valid character constant?

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a

"Hello"

'6'

=

Which statement is true about data types?

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Data type has no memory requirements

Each data type has different memory requirements

Each data type has same memory requirements

None of the above

The number of bytes used by int data type in C is:

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2

8

12

16

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;

Which is a valid statement for declaring a variable?

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int marks;

int a,b,c;

Double salary;

All

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

Variable and constant names can not contain a(n):

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Number

Underscore

Upper case letter

Lower case letter

Which of the following operators has lowest precedence

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!

+

=

Which of the following are valid variable names?

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Long

Integer

Notlongenough

Both B and C

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

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