Web Application Development Quiz 4

 Web programming MCQs

Note: There are total 60 MCQs, each carries 01 mark. There are some questions having multiple right answers so be careful selecting answers.

When security is not a concern and data is text based with small size, which method should be used for submit?*

1 point

GET

POST

To execute query $sql = "select * from exp";  with $conn connection variable which statement can be used in PHP?*

1 point

$conn.execute($sql);

$conn->query($sql);

$conn->execute($sql);

$conn.query($sql);

PHP Sessions are _______. (Select all appropriate answers)*

1 point

Used to remember information related to forms

Communication between two medium

Stored on server

User Friendly

Both GET and POST create _________.*

1 point

Index Array

Structures

Associative Array

Multidimensional Array

A/An _________can also have multiple arguments, but must be only one expression.*

1 point

Anonymous function

Higher Order Function

Static Function

First Order Function

If you want to change the color of a hyperlink when the mouse pointer moves over the hyperlink. In this situation which Pseudo-class should be used?*

1 point

:active

:hover

:visited

: focus

What will be the output of the following JavaScript script?*

1 point

Address of array

1,2,3

1 (first element of array)

Error (array must be access using its index)

JavaScript is an/a _____ based language*

1 point

Compiler

Object-Oriented

Assembler

Interpreter

What will be the output of the following JavaScript Script?*

1 point

10 2 5

10 10 5

2 10 5

2 2 5

Select anonymous Function with pass an argument in JavaScript.*

1 point

setTimeout(function () {console.log(“Welcome");}, 2000);

var a = function (p) {console.log("Welcome", p);};

(function () {console.log("Welcome");})();

var greet = function () {console.log("Welcome ");};

Which of the following statement will print “Hello World” in PHP*

1 point

echo(“Hello World”);

Console.log(“Hello World”);

System.write(“Hello World”);

System.print(“Hello World”);

In a bootstrap grid system how many columns are allowed?*

1 point

6

16

12

8

JavaScript can change ______ . (Select all appropriate answers)*

1 point

All the HTML attributes

All the HTML elements

Visibility of Elements

CSS styles of Elements

Scripts can be placed in the ____ section of an HTML page.*

1 point

Both head and Body

Body

Head

Either Head or Body

___ use numbers to access its "elements" and ____ use names to access its "members". (Select appropriate option to fill both blanks)*

1 point

Objects , Arrays

Arrays , Arrays

Arrays , Objects

Objects , Objects

Predict the Output of the following JavaScript script?*

1 point

0

Undefined

Element not found

-1

What will the following JavaScript code display?*

1 point

Orange, Apple, Mango, Grapes

Banana, Orange, Apple, Mango, Grapes

Banana, Orange, Apple, Mango

Orange, Apple, Mango

Which query is right to insert record in a table name “customer” in mysql.*

1 point

INSERT INTO table customer set surname=’Khan’ and age=33;

INSERT IN customer (surname,age) VALUES ('Khan',33);

INSERT INTO table customer surname=’Khan’ and age=33;

INSERT INTO customer (surname,age) VALUES ('Khan',33);

Select Higher Order anonymous Function in JavaScript.*

1 point

var greet = function () {console.log("Welcome ");};

setTimeout(function () {console.log(“Welcome");}, 2000);

var a = function (p) {console.log("Welcome", p);};

(function () {console.log("Welcome");})();

In PHP setcookie($cookie_name, $cookie_value, time() + (86400 * 3), "/"); This cookie will expire in __?*

1 point

3 Months

3 Days

30 Days

3 Hrs

What output can be produce with the following JavaScript script?*

1 point

30

It will produce error

1012

22

 What will be the output of the following php code?*

1 point

One Two Three Four Five

One Two

One Two Three Four

One Two Three

Which method converts the string into a number in JavaScript (integer or float both)*

1 point

ParseNumber()

Number()

ParseInt()

ParseFloat()

 Which iterative control structure (loop) is not supported by JavaScript?*

1 point

For/of loop

For/in loop

ForEach loop

For loop

To modify a cookie in PHP, just set the cookie using the ____.*

1 point

updatecookie() function

setcookie() function

modifycookies() function with new keyword

setcookie() function with an expiration date in the past

Which is not related to PHP Session?*

1 point

It helps maintain user state and data all over the application.

It is easy to implement and we can store any kind of object.

Session is secure and transparent from the user.

Stores client data altogether.

In PHP if the statement “if(count($_COOKIE) > 0)” is true then it indicates___*

1 point

Cookies are deleted

Cookies are updated

Cookies are enabled

Cookies are disables

If we want to grant access to user “user_1” so that “user_1” can only insert data into only table “tb1” in database “db1” at local server. Select which query is right for this in mysql*

1 point

GRANT TO 'user_1'@'localhost' INSERT ON db1.tb1;

GRANT ON db1.tb1 for INSERT TO 'user_1'@'localhost';

GRANT CREATE ON db1.tb1 TO 'user_1'@'localhost';

GRANT INSERT ON db1.tb1 TO 'user_1'@'localhost';

What will be the output of the following JavaScript Script?*

1 point

9

It will produce an error

X=9

Use strict 9

What will be the output of the following JavaScript script?*

1 point

It will produce error

1012

22

10

HTML elements are positioned ____ by default.*

1 point

Static

Relative

Fixed

Absolute

In JavaScript the main differences between LET and VAR variable declarations are: (Select all appropriate answers)*

1 point

Size of Variable

Variable Scope (Block or Global)

Re-Declaration

Hoisting

JavaScript uses the __ keyword to declare variables.*

1 point

Var

Consider

Int or string

Float or char

What will be the output of the following PHP code?*

1 point

a is 4 and b is 3

a is 4 and b is 4

a is 3 and b is 3

a is 3 and b is 4

If you want to take user consent if he/she really wants to submit some data or not, which method is most appropriate in JavaScript?*

1 point

Prompt()

Document.write();

Confirm()

Alert()

The ‘include’ and ‘require’ statements in PHP are completely identical.*

1 point

False

True

Finding an element ____ method will returns single element using DOM.*

1 point

Finding HTML elements by id

Finding HTML elements by tag name

Finding HTML elements by class name

Finding HTML elements by CSS selectors

Which iterative control structure (loop) is not supported by PHP?*

1 point

While loop

For loop

For/in loop

ForEach loop

Predict the Output of the following JavaScript script?*

1 point

10

-1

3

2

Which of the following is not a valid aggregate function?*

1 point

COMPUTE

COUNT

MAX

SUM

Which operator is used to concatenation in PHP?*

1 point

Plus (+)

Comma (,)

And (&)

Dot (.)

Which is the right way of declaring a variable in PHP?*

1 point

$hello

$3#hello

$ hello

Hello

PHP Variable have the following Scopes. (Select all appropriate answers)*

1 point

Static

Parameter

Global

Local

PHP Cookies are _______. (Select all appropriate answers)*

1 point

User Friendly

Communication between two medium

Used to remember information related to forms

Stored on server

 What will be the output of the following php code?*

1 point

33

30

32

36

Which loop is also known as “Exit Control Loop”?*

1 point

Do-While loop

ForEach loop

While loop

For loop

Array created by GET and POST holds key/value pairs, where keys are the names of the _______.*

1 point

Data receive from the server

Tables attributes

Form controls

Input data from the user

The following JavaScript code will display any random number on browser ___?*

1 point

Between 0 to 100

Between 1 to 100

Between 0 to 99

Between 1 to 99

Which operator is used to concatenation in JavaScript?*

1 point

Plus (+)

Dot (.)

And (&)

Comma (,)

What is the full form DOM?*

1 point

Document Oriented Model

Document Oriented Management

Document Object Model

Document Onhalt Model

The following code describes;*

1 point

Function will not call, there are some errors found.

When double click on button “Try it” myFunction() function will call .

When click on button “Try it” myFunction() function will call .

When button “Try it” will load on page myFunction() function will call.

JavaScript code is inserted between ____ tags.*

1 point

<JavaScript> and </JavaScript>

<Script> and </Script>

<JS> and </JS>

<Jscript> and </Jscript>

In javaScript, if a=[1,2,3,4], and we print typeof arr, what it will be?*

1 point

Number

NaN

Object

Array

If you want to skip a value in the loop, which statement should be used?*

1 point

Continue

Exit

Return

Break

 What will be the output of the following php code?*

1 point

15

110

100

Error in code

The HTML DOM model is constructed as a ____ of Objects.*

1 point

Queue

Graph

Tree

Stack

Select Self Executing  anonymous Function in JavaScript.*

1 point

(function () {console.log("Welcome");})();

setTimeout(function () {console.log(“Welcome");}, 2000);

var a = function (p) {console.log("Welcome", p);};

var greet = function () {console.log("Welcome ");};

If we want to grant access to user “user_2” so that “user_2” can only read data from all tables in database “db2” at local server. Select which query is right for this in mysql*

1 point

GRANT FETCH ON db2.* TO 'user_2'@'localhost';

GRANT SELECT ON db2.* TO 'user_2'@'localhost';

GRANT READ ON db2.all TO 'user_2'@'localhost';

GRANT SELECT ON db2.all TO 'user_2'@'localhost';

You can have _____ in an Array in JavaScript. (Select all appropriate answers)*

1 point

Array

Function

Object

Structure

Predict the Output of the following JavaScript script?*

1 point

Ahmed Arham Moosa Ibrahim Undefined

Undefined Ahmed Arham Moosa Ibrahim

Ahmed Arham Moosa Ibrahim

Nothing will show because wrong function is used to print

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