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11th Computer Applications Weekly Test -3 ( Introduction to Javascript )

MABS Institution

11th Computer Applications Weekly Test -3 ( Introduction to Javascript )-Aug 2020

Time : 1.00 Hours

Part - A

Multiple Choice Question - Answer All Question

In Javascript, ___________ scope is possible for a variable.

Local
Global
Both A and B
None of these

A ___________ is a fixed value given to a variable in source code.

Identifier
Literal
Keyword
None of these

Which of the following operator is not a relational operator?

=
==
>
>=

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

For ______________ the result is false if the first operand is false; otherwise, the result is the Booleanvalue of the second operand.

&& (AND)
| | (OR)
! (NOT)
None of these

Which of the following dialog box is used to take user's consent on any option?

list box
combo box
prompt box
confirm

____________ can be integer or floating-point numerical value and numeric literals are specified in the natural way.

Strings
Numbers
Booleans
All the above

Identify the false statement from the following regarding variable name.

JavaScript variable names are case sensitive.
There is no limit to the length of the variable name.
JavaScript's reserved words can be used as a variable name
Number cannot be as the first character

Relational operators are also called as

Arithmetic operators
Comparison operators
Logical operators
Assignment operators

The r ult of all expressions may be a(n) ____________ value.

Integer
Floating-point
Boolean
All the above

Which of the following statement is false?
(i) The first character of a variable name must be letter or underscore
(ii) Java script variable names are not case sensitive
(iii) There is no limit to the variable name length
(iv) Javascript keywords cannot be used as a variable name

Only (i)
only (ii)
both (ii) and (iv)
all the above

Java script is used to develop _____________.

Interactive Web Pages
Dynamic Web Pages
Static Web Pages
Either A or B

The _____________ operator in JavaScript requires three operands.

Relational
Conditional
Logical
None of these

___________ operator returns true if expr1 is false; otherwise, returns false.

&& (AND)
| | (OR)
! (NOT)
None of these

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

CANCEL
OK
SUBMIT
Both A and B

User entered data, is validated before sending it to server is called

Server traffic
Dynamic Web Page
Server Route
Web server

In JavaScript code, the symbol % is called as __________ operators.

Modules
Remainder
Either A or B
None of these

Which type of language used to static web page?

Javascript
Visual Basic Script
HTML
ASP

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

Boolean
string and functions
undefind
none of these

How many types of typecasting in Javascript?

3
4
2
only one

Which of the following statement is false?
(i) lexical structure is not the lowest-level syntax of a language
(ii) lexical structure is the set of elementary rules of the language
(iii) lexical structure specifies variable names

Only (i)
both (ii) and (iii)
both (i) and (iii)
only (iii)

In JavaScript ____________ is a type of casting.

Implicit
Explicit
Both A and B
None of these

Which of the following is not a JavaScript popup boxes?

Alter box
combo box
confirm box
prompt box

Java script introduced by ____________

Netscape
Sun Inc.
Netscape and Sun Inc.
Borland International

If the user clicks the ___________ button, the prompt ( ) returns null.

CANCEL
OK
SUBMIT
Both A and B

____________ is a symbolic name for a value.

Keyword
Operator
Literal
Variable

The < script > tag containing JavaScript can be placed _____________ in the web page.

any where
< Head > section alone
< body > section alone
None of these

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

______________ saves server traffic, whlch means less load on your server.

Simple Web Pages
Dynamic Web Pages
Static Web Pages
Either A or B

The type of operator returns

literal
values
data type
expression

Type conversion is the act of converting one data type into a different data type which is also called as ________.

Casting
Compilation
Linking
Sampling

Which of the following statement is true?
(i) ++ is used before the operand is known as pre-increment operator
(ii) - - is used before the operand is known as post-decrement operator
(iii) ++ is used after the operand is known as post-increment operator

only (i)
only (ii)
both (i) and (iii)
both (i) and (ii)

How many types of expressions in Javascript?

2
3
4
6

How many elements together comprises Tokens?

4
3
6
5

JavaScript dialog boxes are also called

list boxes
dropdown list boxes
combo boxes
popup boxes

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