180+ Advanced Web Technologies Solved MCQs

Chapters

57

53.1k

1

1.	Which method scope prevents a method from being overridden by a subclass?
A.	Abstract
B.	Protected
C.	Final
D.	Static
Answer» C. Final

discuss

2.	Which of the following statements are true is/are true about constructors in PHP? (i) PHP 4 introduced class constructors. (ii) Constructors can accept parameters. (iii) Constructors can call class methods or other functions (iv) Class constructors can call on other constructors.
A.	All of the mentioned
B.	None of the mentioned
C.	only i
D.	only ii
Answer» A. All of the mentioned

discuss

3.	PHP recognize constructors by the name.
A.	class name()
B.	_construct()
C.	function _construct()
D.	function __construct()
Answer» D. function __construct()

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4.	Which version of PHP introduced the instance of keyword?
A.	PHP 4
B.	PHP 5
C.	PHP 5.3
D.	PHP 6
Answer» B. PHP 5

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5.	Which one of the following functions is used to determine whether a class exists?
A.	exist()
B.	exist_class()
C.	class_exist()
D.	exist()
Answer» C. class_exist()

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6.	Which one of the following functions is used to determine object type?
A.	obj_type()
B.	type()
C.	is_a()
D.	is_obj()
Answer» C. is_a()

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7.	Which one of the following keyword is used to inherit our subclass into a superclass?
A.	. extends
B.	. implements
C.	. inherit
D.	. include
Answer» A. . extends

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8.	Which keyword is used to refer to properties or methods within the class itself?
A.	. private
B.	public
C.	protected
D.	. $this
Answer» D. . $this

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9.	Which keyword allows class members (methods and properties) to be used without needing to instantiate a new instance of the class?
A.	protected
B.	. final
C.	static
D.	private
Answer» C. static

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10.	_________ is a blue print of any object in OOP.
A.	class
B.	object
C.	Construct
D.	Serializing
Answer» A. class

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11.	An _____ is an instance or occurrence of our class.....
A.	class
B.	object
C.	Construct
D.	Serializing
Answer» B. object

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12.	The _____ method starts with two underscores (__).
A.	class
B.	object
C.	Construct
D.	Serializing
Answer» C. Construct

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13.	_______an object means converting it to a byte stream representation that can be stored into file.
A.	class
B.	object
C.	Construct
D.	Serializing
Answer» D. Serializing

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14.	A class property used by another class is called ______.
A.	Abstract class
B.	Interface
C.	Encapsulation
D.	inheritance.
Answer» D. inheritance.

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15.	_________is used to support multiple inheritance
A.	Abstract class
B.	Interface
C.	Encapsulation
D.	inheritance.
Answer» B. Interface

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16.	The ability to hide the details of implementation is known as _____.
A.	Abstract class
B.	Interface
C.	Encapsulation
D.	inheritance.
Answer» C. Encapsulation

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17.	An _______ is one that cannot be instantiated, only inherited
A.	Abstract class
B.	Interface
C.	Encapsulation
D.	inheritance.
Answer» A. Abstract class

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18.	Constant name are proceeded by _____ like a normal variable declaration.
A.	Abstract class
B.	dollar sign($)
C.	Encapsulation
D.	inheritance.
Answer» B. dollar sign($)

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19.	_______ is available when a method is called from within an object context
A.	Abstract class
B.	dollar sign($)
C.	$this
D.	inheritance.
Answer» C. $this

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20.	in PHP, An _____is a special variable, which can hold more than one value at a time.
A.	array
B.	structure
C.	csss
D.	none of these
Answer» A. array

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21.	In PHP, there are three types of arrays:
A.	Indexed arrays -
B.	Associative arrays -
C.	Multidimensional arrays -
D.	all of the above
Answer» D. all of the above

discuss

22.	in PHP ,The____ function is used to return the length (the number of elements) of an array:
A.	count
B.	min
C.	abs
D.	sqrt()
Answer» A. count

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23.	The index can be assigned automatically (index always starts at 0), like this: $cars = array("Volvo", "BMW", "Toyota");
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

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24.	The _____ functions can be used to find the lowest or highest value in a list of arguments:
A.	count & num
B.	min & max
C.	abs & count
D.	sqrt() & round
Answer» B. min & max

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25.	The _____ function returns the absolute (positive) value of a number:
A.	count
B.	min
C.	abs
D.	sqrt()
Answer» C. abs

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26.	the _____function returns the square root of a number:
A.	count
B.	min
C.	abs
D.	sqrt()
Answer» D. sqrt()

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27.	The _____function rounds a floating-point number to its nearest integer:
A.	round
B.	min
C.	abs
D.	sqrt()
Answer» A. round

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28.	The _______ function generates a random number:
A.	rand
B.	min
C.	abs
D.	sqrt()
Answer» A. rand

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29.	To create a constant, use the _____ function.is used
A.	define()
B.	min()
C.	abs()
D.	sqrt()
Answer» A. define()

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30.	In PHP7, you can create an Array constant using the ____ function.
A.	define()
B.	min()
C.	abs()
D.	sqrt()
Answer» A. define()

discuss

31.	The ____statement is used to perform different actions based on different conditions.
A.	switch
B.	min
C.	abs
D.	sqrt()
Answer» A. switch

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32.	The PHP ____function formats a timestamp to a more readable date and time.
A.	date()
B.	min()
C.	abs()
D.	sqrt()
Answer» A. date()

discuss

33.	A ______is a small file that the server embeds on the user's computer. Each time the same computer requests a page with a browser, it will send the cookie too. With PHP, you can both create and retrieve cookie values.
A.	cookie
B.	session
C.	abs
D.	sqrt
Answer» A. cookie

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34.	A ______ is a way to store information (in variables) to be used across multiple pages.
A.	cookie
B.	session
C.	abs
D.	sqrt
Answer» B. session

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35.	_______are the two main aspects of object-oriented programming.
A.	classes and objects
B.	constructor and destructor
C.	object and array
D.	none of these
Answer» A. classes and objects

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36.	A ______allows you to initialize an object's properties upon creation of the object.
A.	classes
B.	constructor
C.	object
D.	none of these
Answer» B. constructor

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37.	If you create a __construct() function, PHP will automatically call this function when you create an object from a class.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

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38.	A ______is called when the object is destructed or the script is stopped or exited.
A.	destructor
B.	constructor
C.	object
D.	none of these
Answer» A. destructor

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39.	If you create a __destruct() function, PHP will automatically call this function at the end of the script.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

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40.	URL stands for ____________ .
A.	Uniform resource locator
B.	Universal resource location
C.	Universe research land mark
D.	non of theses
Answer» A. Uniform resource locator

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41.	The __________ array contains information from the web server.
A.	S_client
B.	S_server
C.	dynamic
D.	non of these
Answer» B. S_server

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42.	The _________ works through request header and response.
A.	Authentication
B.	Authority
C.	Responsibility
D.	none of these
Answer» A. Authentication

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43.	_____________ is a php super global variable which is used to access global variable from anywhere in PHP script.
A.	$_ localb
B.	$_Global
C.	Client
D.	none of these
Answer» B. $_Global

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44.	The size of file can be limited using _________ limit and _____________ limit.
A.	soft and hard
B.	little and short
C.	mg and gb
D.	none of these
Answer» A. soft and hard

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45.	How do you create cookie in PHP by ________.
A.	set-cookie()
B.	create Cookie ()
C.	make Cooking()
D.	none of these
Answer» A. set-cookie()

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46.	MYSQL i here "i" means________
A.	implementation
B.	interface
C.	improved
D.	none of these
Answer» C. improved

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47.	Data source name in pear DB is _________
A.	String
B.	character
C.	float
D.	int
Answer» A. String

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48.	Which are build in data types that sql supports?
A.	real ,double precision
B.	mysql
C.	pear db
D.	data
Answer» A. real ,double precision

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49.	which type of language used in sql
A.	DDL
B.	DML
C.	DIL
D.	none of these
Answer» A. DDL

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50.	java script was designed as a _____ scripting language.
A.	get
B.	Post
C.	Server
D.	Client
Answer» D. Client

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51.	HTTP stands for ___________.
A.	Hyper text transfer protocol
B.	hyper text mark protocol
C.	File transfer protocol
D.	none of these
Answer» A. Hyper text transfer protocol

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52.	Get and ________ are two HTTP methods that a client use to pass from data server.
A.	get
B.	Post
C.	Server
D.	Client
Answer» B. Post

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53.	______ tag is used for multiple selections.
A.	select tag
B.	text tag
C.	list tag
D.	none of these
Answer» A. select tag

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54.	To upload the file ________ array is used.
A.	$Files
B.	$load
C.	$New
D.	none of these
Answer» A. $Files

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55.	PHP was designed as a ________ scripting language.
A.	Sever side
B.	client slide
C.	compiler
D.	none of these
Answer» A. Sever side

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56.	____________is about communication between web clients and servers
A.	WWW
B.	HTML
C.	TCP
D.	FTP
Answer» A. WWW

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57.	Communication between client computers and web servers is done by sending _________________.
A.	HTTP request & HTTP Responses
B.	GET & POST
C.	TCP & FTP
D.	none of these
Answer» A. HTTP request & HTTP Responses

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58.	A ______is a small file that the server embeds on the user's computer. Each time the same computer requests a page with a browser, it will send the ________ too.
A.	Cookie & cookie
B.	FTP & TCP
C.	GET & POST
D.	HTTP request & HTTP Responses
Answer» A. Cookie & cookie

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59.	_______ statements reduce parsing time as the preparation on the query is done only once (although the statement is executed multiple times)
A.	Prepared
B.	fetch
C.	array
D.	SSL
Answer» A. Prepared

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60.	The MySQLi functions allows you to access______ database servers.
A.	Mysql
B.	SSL
C.	Fetch
D.	none of these
Answer» A. Mysql

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61.	The____ function fetches a result row as an associative array, a numeric array, or both.
A.	fetch array()
B.	Cookie()
C.	S_Array()
D.	D_array()
Answer» A. fetch array()

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62.	The ssl_set()function is used to establish secure connections using _____
A.	secure socket layer (SSL)
B.	Mysql
C.	http
D.	none of these
Answer» A. secure socket layer (SSL)

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63.	__________ function is used to change the default database for the connection.
A.	fetch_array()
B.	Cookie()
C.	S_Array()
D.	mysqli_select_db()
Answer» D. mysqli_select_db()

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64.	An inherited class is defined by using the ______ keyword.
A.	extends
B.	constructor
C.	object
D.	none of these
Answer» A. extends

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65.	Abstract classes and methods are when the parent class has a named method, but need its child class(es) to fill out the tasks.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

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66.	An abstract class is a class that contains at least one abstract method. An abstract method is a method that is declared, but not implemented in the code.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

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67.	When inheriting from an abstract class, the child class method must be defined with the same name, and the same or a less restricted access modifier.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

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68.	Interfaces allow you to specify what methods a class should implement.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

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69.	Interfaces are declared with the ________ keyword:
A.	interface
B.	abstract class
C.	implements
D.	None of these
Answer» A. interface

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70.	Interface are similar to abstract classes. The difference between interfaces and abstract classes are Interfaces cannot have properties, while abstract classes can have.
A.	interface
B.	abstract class
C.	implements
D.	None of these
Answer» A. interface

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71.	To implement an interface, a class must use the______ keyword.
A.	interface
B.	abstract class
C.	implements
D.	None of these
Answer» C. implements

discuss

72.	In PHP, there are three types of arrays one is not type of array in php which one:
A.	Indexed arrays -
B.	Associative arrays -
C.	Multidimensional arrays -
D.	polygamy array
Answer» D. polygamy array

discuss

73.	An inherited class is defined by using the extends keyword.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

discuss

74.	Classes and objects are the two main aspects of __________________
A.	object oriented programming
B.	constructor and destructor
C.	object and array
D.	none of these
Answer» A. object oriented programming

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75.	A constructor allows you to initialize an object's properties upon creation of the object.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

discuss

76.	If you create a _______function, PHP will automatically call this function when you create an object from a class.
A.	__construct()
B.	___destruct()
C.	both a and b
D.	none of these
Answer» A. __construct()

discuss

77.	A destructor is called when the object is destructed or the script is stopped or exited.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

discuss

78.	A cookie is a small file that the server embeds on the user's computer. Each time the same computer requests a page with a browser, it will send the cookie too. With PHP, you can both create and retrieve cookie values.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

discuss

79.	A session is a way to store information (in variables) to be used across multiple pages.
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

discuss

80.	Which one of the following databases has PHP supported almost since the beginning?
A.	Oracle Database
B.	SQL
C.	SQL+
D.	MySQL
Answer» D. MySQL

discuss

81.	Which one of the following statements is used to create a table?
A.	CREATE TABLE table_name (column_namecolumn_type);
B.	CREATE table_name (column_typecolumn_name);
C.	. CREATE table_name (column_namecolumn_type);
D.	. CREATE TABLE table_name (column_typecolumn_name);
Answer» A. CREATE TABLE table_name (column_namecolumn_type);

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82.	Which method returns the error code generated from the execution of the last MySQL function?
A.	errno()
B.	. errnumber()
C.	. errorno()
D.	errornumber()
Answer» A. errno()

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83.	If there is no error, then what will the error() method return?
A.	. TRUE
B.	. FALSE
C.	. Empty String
D.	. non of these
Answer» C. . Empty String

discuss

84.	Which one of the following statements should be used to include a file?
A.	. #include ‘filename’;
B.	include ‘filename’;
C.	include <filename>
D.	none of these
Answer» B. include ‘filename’;

discuss

85.	Which one of the following methods recuperates any memory consumed by a result set?
A.	destroy()
B.	remover()
C.	alloc()
D.	free()
Answer» D. free()

discuss

86.	Which one of the following methods can be used to diagnose and display information about a MySQL connection error?
A.	. connect_errno()
B.	connect_error()
C.	mysqli_connect_errno()
D.	. mysqli_connect_error()
Answer» C. mysqli_connect_errno()

discuss

87.	Which method retrieves each row from the prepared statement result and assigns the fields to the bound results?
A.	get_row()
B.	. fetch_row()
C.	. fetch()
D.	row()
Answer» C. . fetch()

discuss

88.	Which one of the Following methods is responsible for sending the query to Database
A.	query()
B.	send_query( )
C.	sendquery()
D.	query_send()
Answer» A. query()

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89.	Which is the comment symbol in mysql?
A.	&&
B.	/…./
C.	#
D.	%
Answer» C. #

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90.	A ________ consists of one or more tables.
A.	database
B.	command
C.	Query
D.	none of these
Answer» A. database

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91.	________ is used to uniquely identify the rows in table.
A.	primary key
B.	Database
C.	not null
D.	none of these
Answer» A. primary key

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92.	_____ returns the last error description for the most recent function call
A.	Error no
B.	Zero no
C.	no error
D.	none of these
Answer» A. Error no

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93.	A _______ is a server that manages data for user.
A.	Wamp
B.	World
C.	Excel
D.	none of these
Answer» A. Wamp

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94.	RDBMS stands for __________.
A.	Relation data base management
B.	reletives data base management
C.	Random data base management
D.	none of these
Answer» A. Relation data base management

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95.	In PHP $Icon=mySQL_connect("localhost","root","") is used to ____ to the data base .
A.	create
B.	close
C.	connect
D.	none of these
Answer» C. connect

discuss

96.	mysql_close() is use to ________database(wamp) in php .
A.	create
B.	close
C.	connect
D.	none of these
Answer» B. close

discuss

97.	______ is use to create the web page .
A.	Word press
B.	Lotus
C.	Word star
D.	none of these .
Answer» A. Word press

discuss

98.	die(mySQL_error()) is used to show _______ message .
A.	error
B.	Connect
C.	create
D.	none of these
Answer» A. error

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99.	The long form of SQL is __________.
A.	Structural query language
B.	Structural question language
C.	System Query Language
D.	None of these
Answer» A. Structural query language

discuss

100.	the switch statement is used to perform different actions based on different conditions
A.	true
B.	false
C.	both a and b
D.	none of these
Answer» A. true

discuss

180+ Advanced Web Technologies Solved MCQs

Which method scope prevents a method from being overridden by a subclass?

Which of the following statements are true is/are true about constructors in PHP? (i) PHP 4 introduced class constructors. (ii) Constructors can accept parameters. (iii) Constructors can call class methods or other functions (iv) Class constructors can call on other constructors.

PHP recognize constructors by the name.

Which version of PHP introduced the instance of keyword?

Which one of the following functions is used to determine whether a class exists?

Which one of the following functions is used to determine object type?

Which one of the following keyword is used to inherit our subclass into a superclass?

Which keyword is used to refer to properties or methods within the class itself?

Which keyword allows class members (methods and properties) to be used without needing to instantiate a new instance of the class?

_________ is a blue print of any object in OOP.

An _____ is an instance or occurrence of our class.....

The _____ method starts with two underscores (__).

_______an object means converting it to a byte stream representation that can be stored into file.

A class property used by another class is called ______.

_________is used to support multiple inheritance

The ability to hide the details of implementation is known as _____.

An _______ is one that cannot be instantiated, only inherited

Constant name are proceeded by _____ like a normal variable declaration.

_______ is available when a method is called from within an object context

in PHP, An _____is a special variable, which can hold more than one value at a time.

In PHP, there are three types of arrays:

in PHP ,The____ function is used to return the length (the number of elements) of an array:

The index can be assigned automatically (index always starts at 0), like this: $cars = array("Volvo", "BMW", "Toyota");

The _____ functions can be used to find the lowest or highest value in a list of arguments:

The _____ function returns the absolute (positive) value of a number:

the _____function returns the square root of a number:

The _____function rounds a floating-point number to its nearest integer:

The _______ function generates a random number:

To create a constant, use the _____ function.is used

In PHP7, you can create an Array constant using the ____ function.

The ____statement is used to perform different actions based on different conditions.

The PHP ____function formats a timestamp to a more readable date and time.

A ______is a small file that the server embeds on the user's computer. Each time the same computer requests a page with a browser, it will send the cookie too. With PHP, you can both create and retrieve cookie values.

A ______ is a way to store information (in variables) to be used across multiple pages.

_______are the two main aspects of object-oriented programming.

A ______allows you to initialize an object's properties upon creation of the object.

If you create a __construct() function, PHP will automatically call this function when you create an object from a class.

A ______is called when the object is destructed or the script is stopped or exited.

If you create a __destruct() function, PHP will automatically call this function at the end of the script.

URL stands for ____________ .

The __________ array contains information from the web server.

The _________ works through request header and response.

_____________ is a php super global variable which is used to access global variable from anywhere in PHP script.

The size of file can be limited using _________ limit and _____________ limit.

How do you create cookie in PHP by ________.

MYSQL i here "i" means________

Data source name in pear DB is _________

Which are build in data types that sql supports?

which type of language used in sql

java script was designed as a _____ scripting language.

HTTP stands for ___________.

Get and ________ are two HTTP methods that a client use to pass from data server.

______ tag is used for multiple selections.

To upload the file ________ array is used.

PHP was designed as a ________ scripting language.

____________is about communication between web clients and servers

Communication between client computers and web servers is done by sending _________________.

A ______is a small file that the server embeds on the user's computer. Each time the same computer requests a page with a browser, it will send the ________ too.

_______ statements reduce parsing time as the preparation on the query is done only once (although the statement is executed multiple times)

The MySQLi functions allows you to access______ database servers.

The____ function fetches a result row as an associative array, a numeric array, or both.

The ssl_set()function is used to establish secure connections using _____

__________ function is used to change the default database for the connection.

An inherited class is defined by using the ______ keyword.

Abstract classes and methods are when the parent class has a named method, but need its child class(es) to fill out the tasks.

An abstract class is a class that contains at least one abstract method. An abstract method is a method that is declared, but not implemented in the code.

When inheriting from an abstract class, the child class method must be defined with the same name, and the same or a less restricted access modifier.

Interfaces allow you to specify what methods a class should implement.

Interfaces are declared with the ________ keyword:

Interface are similar to abstract classes. The difference between interfaces and abstract classes are Interfaces cannot have properties, while abstract classes can have.

To implement an interface, a class must use the______ keyword.

In PHP, there are three types of arrays one is not type of array in php which one:

An inherited class is defined by using the extends keyword.

Classes and objects are the two main aspects of __________________

A constructor allows you to initialize an object's properties upon creation of the object.

If you create a _______function, PHP will automatically call this function when you create an object from a class.

A destructor is called when the object is destructed or the script is stopped or exited.

A cookie is a small file that the server embeds on the user's computer. Each time the same computer requests a page with a browser, it will send the cookie too. With PHP, you can both create and retrieve cookie values.

A session is a way to store information (in variables) to be used across multiple pages.

Which of the following statements are true is/are true about constructors in PHP?
(i) PHP 4 introduced class constructors.
(ii) Constructors can accept parameters.
(iii) Constructors can call class methods or other functions
(iv) Class constructors can call on other constructors.

The ___ method starts with two underscores ().

The size of file can be limited using _ limit and _____ limit.

A is a small file that the server embeds on the user's computer. Each time the same computer requests a page with a browser, it will send the __ too.