Web Application Development

What will be the output of the following PHP code ? <?php $x; for($x=-3;$x<-5;++$x) { print++$x; } ?>

• no output

The wildcard in a WHERE clause is useful when?

• An exact match is not possible in a SELECT statement.

Which of the following can add a row to a table?

• Insert

Assuming the table and fields below exists, what is wrong with the following mysql query example: mysql_query("INSERT INTO contacts (firstName, lastName, phoneNumber) VALUES ('Robert', 'Smith')");

• There are more fields than values

The "or die()" part of a MySQL command will execute if the connection fails?

• True

What does PHP stand for?

• PHP: Hypertext Preprocessor

Assuming the table and fields below exists, what is wrong with the following mysql query example: mysql_query("INSERT INTO contacts (firstName, lastName, phoneNumber) VALUES ('Robert', 'Smith', '123-983-2929')");

• Nothing, everything is fine

The "mysql_connect()" function opens a MySQL connection?

• True

The PHP If Else Statement can execute the code within the if and else segments at the same time?

• False

A variable declared within a function.

• local

Assume you would like to sort an array in ascending order by value while preserving key associations. Which of the following PHP sorting functions would you use?

• asort()

If a source file contains PHP code, what extension should be used?

• php

What data type will PHP automatically convert the following variable to: $aVariable = "Robert";

• string (a text variable)

The SQL keyword(s) ________ is used with wildcards.

• LIKE only

What will be the output of the following PHP code ? < ?php $i = 0; for ($i) { print$i; } ? >

• error

If the variable $x = 10; , what will $x equal if it is incremented, that is, if I write $x++; what value will $x contain after it has been incremented?

• 11

Function that select database.

• mysql_select_db();

Array values are keyed by ______ values (called indexed arrays) or using ______ values (called associative arrays). Of course, these key methods can be combined as well.

• Integer, String

The ______ clause allows us to select only those rows in the result relation of the ____ clause that satisfy a specified predicate.

• Where, from

Which one of the following databases has PHP supported almost since the beginning?

• MYSQL

A line of php code must end with a ?

• Semicolon ( ; )

PHP is proprietary software.

• True

What does the following MySQL command do? SELECT * FROM author WHERE auth_name LIKE 'W%';

• Return those rows from the table author in which the name of the author starts with the character 'W

Identify if the statement if True or False. Write True if statement is true otherwise False php.org is the official php resource.

• False

The following condition will return TRUE or FALSE ( (2 >= 2 && 8 < 1) || (11 == 33 || 5 > 3) )

• True

The following comparison condition would return TRUE or FALSE:(4 <> 7)

• True

True or False - The operator OR, when used to link two or concept terms will retrieve fewer records because both terms need not be present in each article.

• False

When three or more AND and OR conditions are combined, it is easier to use the SQL keyword(s):

• Both IN and NOT IN.

Whitespace is not ignored in PHP?

• False

The ________ clause is used to list the attributes desired in the result of a query.

• Select

Original Name of JavaScript

• LiveScript

PHP server scripts are surrounded by delimiters, which?

• <?php...?>

The logical operator || stands for?

• AND

With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" is "Peter"?

• SELECT * FROM Persons WHERE FirstName = 'Peter'

Object is used to exchange data with a server behind the scenes.

• XMLHttpRequest

The following comparison condition would return TRUE or FALSE:(3 <> 6)

• True

Option buttons are also called Selection button

• False

Which is identified as a special variable, which can store multiple values in one single variable?

• Array

In which positions PHP's indexed array begin?

All text in a multiple line comment block is ignored?

• True

The following condition will return TRUE or FALSE:(4 >= 4 || 8 < 1)

• False

_Select name, course_id from instructor, teaches where instructor_ID= teaches_ID; This Query can be replaced by which one of the following ?

• Select name, course_id from instructor natural join teaches;

Which one of these variables has an illegal name?

• $my-VarV

Which one of the following denotes the difference between SELECT and USE command?

• SELECT checks which database is currently selected, USE selects a database

What functions count elements in an array?

• count

The following condition will return TRUE or FALSE ( (4 >= 4 && 8 < 1) || (44 == 33 || 5 > 3) )

• True

Originally PHP is known as PHP: Hypertext Preprocessor (Personal Home Page)

• False

There are three different kind of arrays:

• Numeric array, Associative array, Multidimensional array

It's a function that returns the lowest value in a column.

• Min()

Which SQL statement is used to delete data from a database?

• DELETE

Which one of the following method is used to retrieve the number of rows affected by an INSERT, UPDATE, or DELETE query

• affected_rows()

Which of the following displays the unique values of the column. Select ________ dept_name from instructor;

• Distinct

You can add a row using SQL in a database with which of the following?

• INSERT

The "mysql_error()" function returns the error description for a MYSQL operation?

• True

The following are examples of >, <=, >=, ==________ Operators

• Comparison

The default file extension for PHP files is ".php".

• True

The concatenation operator in PHP?

• .

Returns header information

• getAllResponseHeaders()

The logical operator && stands for?

• AND

Working locally you an access php script by using http://localhosts/filename.php

• False

Returns the status-number of a request if "OK"

• 200

Which SQL statement is used to insert new data in a database?

• INSERT INTO

Returns the highest value

• MAX()

When a variable is declared, it can only be used 1 time in your PHP source file?

• False

Which of the following statement is not true about MySQL DROP command?

• it can be used to delete only data but not structure of a table

Using XAMPP server you can use SQL Server database.

• False

The following condition will return TRUE or FALSE:(7 >= 7 && 9 < 2)

• False

This command sends active query to the database

• mysql_query()

PHP variables start with what symbol ?

• A $ symbol

In PHP you can use both single quotes ( ' ' ) and double quotes ( " " ) for strings

• True

represents a control that presents a menu of options.

• select

Function is used to convert a human readable string to a Unix time.

• strtotime()

Original developer of JavaScript?

• Brendan Eich

The following are examples of =, +=, *=, /=, .= _______ Operators

• Assignment

Which of the following is the correct order of keywords for SQL SELECT statements?

• SELECT, FROM, WHERE

To remove duplicate rows from the result set of a SELECT use the following keyword:

• DISTINCT

Symbol use as identical

• ===

It's a time manipulation function that returns the current date.

• CurDate()

MYSQL can be used to:

• All of the above can be done by MYSQL.

PHP variables need to be declared before adding a value to it?

• False

Which operator will check if two variables are the same?

• ==

To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included

• DISTINCT

The SQL statement that queries or reads data from a table is ________ .

• SELECT

The following condition will return TRUE or FALSE: (7 >= 7 && 9 < 2)

• False

MySQL was invented in the year of

• 1994

Server command that calls itself

• $_SERVER['PHP_SELF']

Which statement will evaluate and include a file into the location where it is called.

• include statement

PHP project originally started in 1995 by RasmusLerdorf. (1994)

• False

MySQL COUNT() function returns

• a count of number of non-NULL values of a given expression

It's a text function that returns convert string to lowercase

• Lower()

The keystone of AJAX

• XMLHttpRequest

The result of a SELECT statement can contain duplicate rows.

• True

Facebook, wordpress uses php as script language.

• True

Is the SQL statement correct or not. SELECT vend_name, prod_name, prod_price, vendors.vend_id, products.vend_id FROM vendors INNER JOINS products ON vendors.vend_id = products.vend_id;

• No

If the variable $x = 11; , what will $x equal if it is incremented, that is, if I write $x++; what value will $x contain after it has been incremented?

• 12

The "I" in MySQLi stands for

• improved

What will the following script output?

• 78

An object-oriented computer programming language commonly used to create interactive effects within web browsers

• JavaScript

What will be the output of the following PHP code ? <?php for($x=0;$x<=10;$x++) { echo"The number is: $x<br>"; } ?>

• The number is: 0 The number is: 1 The number is: 2 The number is: 3 The number is: 4 The number is: 5 The number is: 6 The number is: 7 The number is: 8 The number is: 9 The number is: 10

PHP's numerically indexed array begin with position __.

What will be the output of the following PHP code ? <?php $colors=array("red","green","blue","yellow"); foreach($colors as $value) { echo "$value<br>"; }

• red green blue yellow

What does SQL stand for?

• Structured Query Language

How many single line commenting types are there?

• 2

Multiple Choice. Select the best answer How do you write "Hello World" in PHP

• echo "Hello World";

How do you start the shorthand form PHP scripting block?

• <? … ?>

Which one of the following function is useful for producing a timestamp based on a given date and time.

• mktime()

Security is not an issue with JavaScript

• False

PHP script tags ends with ?>;

• False

The command to remove rows from a table 'CUSTOMER' is:

• DELETE FROM CUSTOMER WHERE ...

The HAVING clause does which of the following?

• Acts like a WHERE clause but is used for groups rather than rows.

Which of the following is the original purpose of SQL?

• All of the above.

Is allowed us to collect data from the htm file and display to the php script.

• _POST

PHP can be run on Microsoft Windows IIS(Internet Information Server):

• True

Which one of the following denotes the default mysql date format?

• YYYY-MM-DD

All variables in PHP start with which symbol?

• $

True or False. JavaScript can be inserted into any web page regardless of the file extension.

• True

AJAX is a programming language

• It refers to a client-side script that communicates to and from a server/database without the need for a postback or a complete page refresh

_Select * from employee where salary>10000 and dept_id=101; Which of the following fields are displayed as output?

• All the field of employee relation

With SQL, how do you select a column named "FirstName" from a table named "Persons"?

• SELECT FirstName FROM Persons

Consider the following code snippet : var grand_Total=eval("10*10+5");

• 105 as an integer value

This function allows you to close the current connection.

• close();

What is the output of the following code snippet? $str = 'asdfghyo off on off'; $replace_pairs = array('a' => 'q', 's' => 'w', 'd' => 'e', 'f' => 'r', 'y' => 'z', 'o' => 'i', 'off' => 'on', 'on' => 'off'); echo strtr($str, $replace_pairs);

• Qwerghzi on off on

Its a client-side script that communicates to and from a server/database without the need for a postback or a complete page refresh

• AJAX

True or False - The operator AND, when used to link two concept terms (e.g. children and violence) will retrieve only those records that contain both concept terms

• True

Using the _POST is allowed us to collect data from the htm file and display to the php script

• _POST

Find the SQL statement below that is equal to the following: SELECT NAME FROM CUSTOMER WHERE STATE = 'VA';

• SELECT NAME FROM CUSTOMER WHERE STATE IN ('VA');

What does a semicolon signify at the end of a instruction or statement?

• the end of a PHP statement or instruction

What is the output of the following? echo strcmp('first', 'second'), ", "; echo strcmp('44', '054'), ", "; echo strcmp('0x80', 'a'), ", "; echo strcmp('a', 'A');

• -1, 1, -1, 1

PHP is one of the most widely used and recognizable web technology use on the internet.

• True

It refers to styles for your documents, including the design, layout and variations in display for different devices and screen sizes.

• CSS

Symbol use to append data or string

• .

PHP 3 was released in 1998.

• True

For maximum compatibility, you should use the shorthand form to create PHP scripts?

• False

Andi Gutmans was the inventor of PHP.

• False

PHP in now known as "PHP: Hypertexts Preprocessor"

• False

What will be the output of the following PHP code ? <?php for($i==2;++$i==$i;++$i) print"In for loop "; print"After loopn"; ?>

• In for loop In for loop In for loop In for loop......infinitely

What will be the output of the following PHP code ? <?php for($x=1;$x<10;++$x) { print"*t"; } ?>

• *********

returns the numbers of rows in a columns.

• count()

A NULL value is treated as a blank or 0.

• False

In PHP, the only way to output text is with echo.

• False

To use MySQL on your computer, you'll need?

• Some sort of client program to access the databases

The SQL WHERE clause:

• limits the row data are returned.

Which of the following are the five built-in functions provided by SQL?

• COUNT, SUM, AVG, MAX, MIN

All text to the right of a single line comment is not ignored?

• False

Which is the correct way to write a multiple line PHP comment?

• /* .. *

If I wanted to concatenate a word to a string variable I would use which symbol?

• .

What is the output of the following code? $a=1; ++$a; $a*=$a; echo $a- -;

• 4

The following condition will return TRUE or FALSE: !(3 >= 3 || 8 < 1)

• False

The SQL keyword BETWEEN is used:

• for ranges.

The "mysql_close()" function allows you to close a MySQL connection?

• True

What is the correct way to end a PHP statement?

• ;

One of the main points of interaction between a user and a web site or application. They allow users to send data to the web site.

• HTML forms

The following condition will return TRUE or FALSE: (4 >= 4 && 8 < 1)

• False

All variables in PHP start with a $(dollar) sign?

• True

The logical operator ! stands for?

• NOT

Which of the following is the incorrect way to declare a PHP variable?

• $a_Number = 9

Which one of the following statements is used to create a table?

• CREATE TABLE table_name (column_namecolumn_type);

What is the function of the ucfirst and lcfirst functions?

• To make the string's first character uppercase or lowercase, respectively

Which is the incorrect way to start a single line PHP comment?

• /* .. */

Which one of the following is the right way of defining a function in PHP?

• functionfumctionName(parameters) { function body }

PHP runs on various platforms operating system such as apache and IIS

• False

Originally PHP is known as "Personal Home Pages"

• False

Which function used to get the current time in mysql?

• NOW()

What will be the output of the following PHP code ? <?php for($i++;$i==1;$i=2) print"In for loop "; print"After loopn"; ?>

• In for loopAfter for loop

It uses spec cols and rows attributes, or even better; through CSS' height and width properties.

• textarea

JavaScript Code can be called by using

• Function/Method

PHP only runs in Apache web server.

• False

To sort the results of a query use:

• ORDER BY.

Ajax Stands for

• Asynchronous JavaScript And XML.

What will be the output of the following PHP code ? <?php for(1;$i==1;$i=2) print"In for loop "; print"After loopn"; ?>

• After for loop

The INSERT INTO statement is not used to add new records to a database table?

• False

Tag is used to group block-elements to format them with CSS.

• div

A subquery in an SQL SELECT statement

• has a distinct form that cannot be duplicated by a join.

Area that can be specified by the cols and rows attributes, or even better; through CSS' height and width properties

• textarea

The query given below will not give an error. Which one of the following has to be replaced to get the desired output? Select ID, name, dept name, sal * 1.1 where instructor;

• WHERE

Version 4 of php supports global variables $Get etc. (v4.1)

• False

The date() function returns ___ representation of the current date and/or time.

• String

this function allows you to connect to mysql database

• mysql_connect(),

Look at the following code and determine what will be displayed in the browser: <?php echo "Hello World 1"; // echo "Hello World 2"; ?>

• Hello World 1

XMLHttpRequest object function that cancel request.

• Abort()

The PHP If Statement will only execute the code within it's curly braces if the if condition is FALSE?

• False

The following are examples of =, !=, === ______ Operators

• Equality

Function that is used to check whether a variable is set or not.

• isset()

Element represents a control that presents a menu of options.

• HTML select

When using the POST method, variables are displayed in the URL:

• False

One of the parameters to represent the day of the month

• d

The PHP syntax is most similar to:

• Perl and C

In a LIKE clause, you can could ask for any value ending in "qpt" by writing

• LIKE %qpt

Other term use for Option buttons?

• Radio buttons

What will be the output of the following PHP code ? <?php for($x=-1;$x<10;--$x) { print$x; } ?>

• infinite loop

The following condition will return TRUE or FALSE:!(4 >= 4 || 8 < 1)

• False

Which one of the following statements should be used to include a file?

• include 'filename';

The following example $x -= $y; is the same as?

• $x = $x – $y;

If a PHP script opens a MySQL connection, the script will automatically close the connection after the script has finished executing?

• True

It's a function returns the Unix timestamp for a date.

• mktime()

Which one of the following sorts rows in SQL?

• ORDER BY

True or False - The following search statement will exclude any records that contain the term "poodle." (dogs OR canines) NOT cats.

• False

Consider the following snippet code var string1 = "123"; var intvalue = 123; alert( string1 + intvalue );

• 123123

Identification. Write your answer on the space provided. +, -, *, /, %, are all examples of what category of operators

• arithmetic operators

Converts text to uppercase

• Upper()

Can hold an unlimited number of characters, and the text renders in a fixed-width font.

• Textarea

Which one of the following methods is responsible for sending the query to the database?

• query()

MySQL runs on which operating systems?

• Unix, Linux, Windows and others

Syntax is a set of rules that must be followed to write properly structured code?

• True

Function trims all spaces from the right of a value

• RTRIM()

A way on how to print / display text on the screen.

• echo

What will happen in this function call?

• Call by value

Symbol used to combine 2 sting values to create one string.

• .

The following example $a -= $b; is the same as?

• $a = $a – $b;

What data type will PHP automatically convert the following variable to:? $aVariable = 99;

• integer (a number variable)

<?php for($x=0;$x<=10;++$x) { print++$x; } ?>

• 123456789101112

What is the output of the following? echo substr("abcdef", -2), ', '; echo substr("abcdef", 4), ', '; echo substr("abcdef", -3, -1), ', '; echo substr("abcdef", 4, -2), ', '; echo substr("abcdef", 2, -1)

• Ef, ef, de, , cde

In an SQL SELECT statement querying a single table, the asterisk (*) means that:

• all columns of the table are to be returned.

Multiple Choice. Select the best answer How do you start the standard form PHP scripting block?

• <?php … ?>

True or False - Using the operator AND to combine concept terms is a good way to increase the number of records retrieved in a search.

• False

Which SQL statement is used to insert a new data in a database?

• INSERT INTO

This are functions that operate on a set of rows to calculate and return a single value.

• Aggregate functions

Which of the following statements contains an error?

• Select empid where empid = 1009 and lastname = ‘JOHANN;

Assuming the table and fields below exists, what is wrong with the following mysql query example: mysql_query("INSERT INTO contacts (firstName, lastName) VALUES ('Robert', 'Smith', '123-983-2929')");

• There are more values than fields

Which of the following employee_id will be displayed?

• 1018

Insert into employee _____ (1002,Jeiven,2000); In the given query which of the keyword has to be inserted ?

• Values

Joining values together (by appending them to each other) to form a single long value.

• concatenate