Web Application Development

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

• $a = $a – $b;

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()

A line of php code must end with a ?

• Semicolon ( ; )

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

• 4

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

• False

Security is not an issue with JavaScript

• False

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

• Distinct

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

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

• False

Which of the following is the original purpose of SQL?

• All of the above.

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

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

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 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

represents a control that presents a menu of options.

• select

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

The SQL WHERE clause:

• limits the row data are returned.

Which one of the following sorts rows in SQL?

• ORDER BY

A NULL value is treated as a blank or 0.

• False

MySQL was invented in the year of

• 1994

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

• Aggregate functions

The PHP syntax is most similar to:

• Perl and C

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

• $x = $x – $y;

Other term use for Option buttons?

• Radio buttons

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

The logical operator && stands for?

• AND

To sort the results of a query use:

• ORDER BY.

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

• False

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

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

• True

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

• True

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

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

A variable declared within a function.

• local

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

• $a_Number = 9

Symbol use as identical

• ===

Returns the highest value

• MAX()

Element represents a control that presents a menu of options.

• HTML select

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

PHP server scripts are surrounded by delimiters, which?

• <?php...?>

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

• _POST

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

• concatenate

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

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

• 105 as an integer value

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

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

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

• Where, from

PHP in now known as "PHP: Hypertexts Preprocessor"

• False

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

• MYSQL

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

• DELETE FROM CUSTOMER WHERE ...

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

• False

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');

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

• Select

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

• True

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

• SELECT, FROM, WHERE

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

• Equality

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

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

• query()

Function trims all spaces from the right of a value

• RTRIM()

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

• False

The logical operator || stands for?

• AND

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

• JavaScript

Returns header information

• getAllResponseHeaders()

A subquery in an SQL SELECT statement

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

JavaScript Code can be called by using

• Function/Method

The SQL keyword BETWEEN is used:

• for ranges.

Option buttons are also called Selection button

• False

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

• error

One of the parameters to represent the day of the month

• d

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

• False

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

• True

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

• include statement

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

• DELETE

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

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

• String

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

• /* .. */

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

• True

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

• integer (a number variable)

PHP's numerically indexed array begin with position __.

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

• 123456789101112

What will happen in this function call?

• Call by value

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

• Textarea

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

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

• True

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

• DISTINCT

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

• True

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

• True

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

• COUNT, SUM, AVG, MAX, MIN

What is the correct way to end a PHP statement?

• ;

PHP is proprietary software.

• True

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

• _POST

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

• echo "Hello World";

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

• affected_rows()

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

• 200

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

• LIKE %qpt

The concatenation operator in PHP?

• .

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

• False

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

• False

PHP 3 was released in 1998.

• True

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.

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

• False

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

• arithmetic operators

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

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

Server command that calls itself

• $_SERVER['PHP_SELF']

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

• SELECT FirstName FROM Persons

Original Name of JavaScript

• LiveScript

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

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

• php

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

• True

The logical operator ! stands for?

• NOT

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

• False

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

• CSS

Original developer of JavaScript?

• Brendan Eich

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

• INSERT

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

• isset()

The HAVING clause does which of the following?

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

How do you start the shorthand form PHP scripting block?

• <? … ?>

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

• all columns of the table are to be returned.

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

• Comparison

All variables in PHP start with which symbol?

• $

Symbol use to append data or string

• .

MySQL runs on which operating systems?

• Unix, Linux, Windows and others

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

• False

Whitespace is not ignored in PHP?

• False

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

• False

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

• False

The "I" in MySQLi stands for

• improved

Facebook, wordpress uses php as script language.

• True

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

• functionfumctionName(parameters) { function body }

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

• Values

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

• Some sort of client program to access the databases

Ajax Stands for

• Asynchronous JavaScript And XML.

The result of a SELECT statement can contain duplicate rows.

• True

How many single line commenting types are there?

• 2

XMLHttpRequest object function that cancel request.

• Abort()

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

• CREATE TABLE table_name (column_namecolumn_type);

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

• the end of a PHP statement or instruction

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

What will the following script output?

• 78

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

• False

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

• *********

All text in a multiple line comment block is ignored?

• True

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

• SELECT

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

• True

_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;

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

• textarea

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

• textarea

Which of the following employee_id will be displayed?

• 1018

this function allows you to connect to mysql database

• mysql_connect(),

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

• CurDate()

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

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

• False

What functions count elements in an array?

• count

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'

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

• True

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

• LIKE only

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

• string (a text variable)

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

• False

The keystone of AJAX

• XMLHttpRequest

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

• infinite loop

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

• False

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

• <?php … ?>

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

Which of the following statements contains an error?

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

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

• INSERT INTO

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

• include 'filename';

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

• Min()

PHP script tags ends with ?>;

• False

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

• True

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

• False

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

• INSERT INTO

Converts text to uppercase

• Upper()

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

• /* .. *

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

• 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()

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

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

• True

MYSQL can be used to:

• All of the above can be done by MYSQL.

Which function used to get the current time in mysql?

• NOW()

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

• strtotime()

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

• mktime()

What is the function of the ucfirst and lcfirst functions?

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

Originally PHP is known as "Personal Home Pages"

• False

This command sends active query to the database

• mysql_query()

Which one of these variables has an illegal name?

• $my-VarV

This function allows you to close the current connection.

• close();

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

• Array

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

• Insert

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

• Assignment

Using XAMPP server you can use SQL Server database.

• False

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

• True

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

• False

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

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

• 123123

In which positions PHP's indexed array begin?

There are three different kind of arrays:

• Numeric array, Associative array, Multidimensional array

PHP only runs in Apache web server.

• False

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

• DISTINCT

PHP variables start with what symbol ?

• A $ symbol

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

Andi Gutmans was the inventor of PHP.

• False

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

• echo

What does SQL stand for?

• Structured Query Language

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

• Both IN and NOT IN.

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

• False

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

• .

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

• div

Function that select database.

• mysql_select_db();

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

• XMLHttpRequest

What does PHP stand for?

• PHP: Hypertext Preprocessor

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

• False

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

• mktime()

_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

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

• YYYY-MM-DD

Which operator will check if two variables are the same?

• ==

returns the numbers of rows in a columns.

• count()

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

• True

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

• True

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

• .