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11th Computer Applications Monthly Test -4 ( Introduction to Javascript )

MABS Institution

11th Computer Applications Monthly Test -4 ( Introduction to Javascript )-Aug 2020

Time : 2.00 Hours

Part - A

Multiple Choice Question - Answer All Question

The type of operator returns

literal
values
data type
expression

______________ is the < SCRIPT > tag attribute.

Language
Type
Both A and B
None of these

Which of the following operators are used to create more complex conditions?

Relational
logical
Comparision
Arithmetic

The __________________ operator converts the value of the operand to a number, subtracts 1, and assigns the decremented value back to the operand.

- -
-
- =
None of these

Java script introduced on _______________.

December 6, 1995
December 5, 1995
December 4, 1995
December 4, 1985

____________ keyword allocates storage space for new data.

declare
var
jsvar
allocate

____________ can be anyone of two values: true or false

Strings
Numbers
Booleans
All the above

Which JavaScript dialog box is used to get user input?

Alert
Confirm
Prompt
Text box

_____________ keyword indicates to the interpreter that a new identifier is in use.

declare
var
jsvar
allocate

Which provided a common scripting language to web developers to design, test and deploy Internet Application

C
C++
Java
Javascript

The important attributes of < script > tag

language and type
rel and type
src and href
Vspace and Hspace

Which of the following is simply a name in Javascript?

comment
keyword
literals
identifier

A Data value for variable that appears directly in a program by using a

loop
Literal
Statement
Text

An expression is simply one or more variables and / or constants joined by ___________.

Operators'
Operands
Punctuators
Keyword

Which of the following is not returned by type of operator?

Boolean
string and functions
undefind
none of these

The ______________ specifies variable names, the delimiter characters for comments, and how one program statement is separated from the next.

Lexical structure
Logical structure
.Procedural structure
None of these

Alert box gives only one button ____________ to selectand proceed.

CANCEL
OK
SUBMIT
RESET

JavaScript supports ____________ shorthand arithmetic operator to evaluate arithmetic calculations.

+ =, - =
* =, / =
% =
All the above

___________ attribute of < Script > tag specifies that the scripting language.

Language
Type
Both A and B
None of these

The ____________ is very useful when the user want to pop-up a text box to get user input.

Alert box
Confirm box
Prompt box
All the above

_____________ operator has no effect on numbers but causesnon-numbers to be converted into Numbers.

Unary +
Unary -
- -
+ +

Which of the following operators invert boolean values?

Relational
Arithmetic
Assignment
logical

Which of the following statement is true?
(i) The prompt dialog box is used to get user input
(ii) The confirm dialog box is used to take user consent
(iii) The alert dialog box is used to give a warning message

only (i)
only (ii)
only (iii)
all the above

If the user clicks the _____________ button, the prompt ( ) will return the entered value from the text box.

CANCEL
OK
SUBMIT
Both A and B

In Javascript, the first character of a variable name must be a(n) ___________.

Letter
underscore ( _ )
Either A or B
None of these

Part - B

Generic 5 - Answer All Question

Explain about the popup dialog boxes in JavaScript.

Explain the steps to follow to code Javascript language.

Write a HTML code using to test logical operators.

Write the rules of naming variables in Javascript program.

Write a HTML code using relational operator to compare two data.

Explain about the Arithmetic operator with suitable example.

Explain the lexical structure of a Javascript program.

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