Thursday 7 June 2012

oDesk php 5 test answers full

Question 1
The setrawcookie() method of setting cookie is different from php standard method of cookie setting as :
  1. It does not allow expiry time to be set
  2. It can be used only once
  3. It does not url- ENCODE the value on its own
  4. It does not allow domain setting
Ans: C

Question 2

IF visibility is not defined for a method /member then it is treated as public static.

  1. True
  2. False

Ans: B

Question 3

Which of the following is not a valid php connection status?
  1. Aborted
  2. Normal
  3. Open
  4. Timeout

Ans:  C

Question 4

Which of the following statements is not true with regard to abstract classes in php5?

  1. Abstract classes are introduced in php 5
  2. A class with a single abstract method must be declared abstract
  3. Abstract class can contain abstract methods
  4. Abstract method must have method definition and can have optional empty braces following it
Ans : C

Question 5
What will be the result of following operation?
Print 4<<5;

a.       3
b.      128
c.       120
d.      6

Ans: B

Question 6

Which of the following type cast in not correct?

$fig=23;
$varbl=(real)$fig;
$varb2=(double)$fig;
$varb3=(decimal)$fig;
$varb4=(bool)$fig;
?>

  1. real
  2. double
  3. decimal
  4. Boolean

Ans: C
Question 7

What is the result of the following expression?

5+2*4+6
  1. 70
  2. 19
  3. 34
  4. 21

Ans: B

Question 8

The classes are defined as follows
Abstract class BaseCls(
Protected abstract function getName();
}
Class childCls extends BaseCls{
}
Which of the following implementations of getName() in invalid in childCls?

a.       Protected function getName(){}
b.      Function getName(){}
c.       Private function getName(){}
d.      Public function getName(){}

Ans: D

Question 9

Multiple select/load is possible with:
  1. checkbox
  2. select
  3. file
  4. all of the above

Ans : A

Question 10

State whether true or false

Paamayim nekudotayim operator allows access only to the static members of a class?

a.       True
b.      False

Ans: A

Question 11

What is the output of the following code?

$a=500;
$b=200;
echo $a % 2 * $b;
?>

  1. 100
  2. 200
  3. 500
  4. 0
  5. Syntax error

Ans: D

Question 12

You need to heck the size of a file in php function .
$size=X(filename);
which function will suitable replace “X”?

  1. Filesize
  2. Size
  3. sizeofFile
  4. getSize

Ans: A

Question 14
Which of the following is not true for a persistent connection?

  1. these are not closed even after the execution of the script
  2. these are mainly used to increase the efficiency of the system
  3. These can’t be converted to non-persistent connections
  4. These are preferable not used in the scripts involving transactions

Ans: D

Question 15

Which one is correct?

  1. $s=fwrite(“a string here”);
  2. $s=fwrite($fp,”a string here”);
  3. $s=fwrite(“a string here ”,$fp);
  4. none of the above

Ans B

Question 16
Which of the following in not a correct way of printing text in php 5

a.      
echo “plain text”
?>
b.     
c.      
d.      <#
echo “plain text”
#>

Ans: C

Question 17

Which will be the output of the following code?

$a=0.0;

For($i=0;$i<10;$i++)
$a+=0.1;
print “$a\n”;
if ($a==1.0)
print “equals”;
else
print “not equals”;
?>
  1. 0.9
Not Equals
  1. 1
Equals
  1. 1
not Equals
  1. 1.1

Ans: C

Question 18

Which of the following attribute is needed for file upload via form?

  1. Enctype=”multipart/form-date”
  2. Enctype=”singlepart/date”
  3. Enctype=”file”
  4. Enctype=”form-data/file”

Ans: A

Question 19

Late php versions support remote file accessing for the functions:

  1. Include()
  2. Include_once()
  3. Require_once()
  4. All of the above

Ans : D

Question 20

Given below is a small php script:

class person {
function getSal()
{
……
……
}
}
class emp extends person {
fucniton getSal()
{
???
}
}
?>
the getSal() of emp has to behave exacltyle as getSal() of person . Which of the following lines of code would you use to replace the “???”?

  1. Parent:: getSal();
  2. Person::getSal();
  3. Parent::getsal;
  4. Person::getSal;

Ans: A
oDesk PHP 5 test answers

What is true regarding this code?


setcookie will return true


Question:
Which of the following is not a correct way of printing text in php5?


echo "Plain text";



Question:
Which of the following is not the correct way of starting a session?


session_initiate()

                                                                                                                       
Question:
Which of the following functions do you need to implement HTTP Basic Authentication?


None of the above

Question:
Which of the following Command Line Interface constant is not defined in the CLI SAPI?


STDPRT

Question:
Which of the following statements is correct with regard to final and abstract?

a. An abstract class cannot have final methods
Question:
Which composite data types are supported by php?

Array

Question:
The default value of register_globals in PHP is:

Off

Question:
Which of the following is not a valid PHP connection status?

 open

Question:
Choose the correct statement:

include() includes and evaluates a specific file


require_once() includes and evaluates a specific file only if it has not been included before
posted by khalequzzaman
Question:
If the session_cache_expire() is not set, then by default the session cache will expire after:

3 hrs

Question:
What will be the output of the following script?
$count=50;
function Argument()
{
$count++;
echo $count;
}
Argument();
?>

 It will print 1

Question:
State whether True or False

Paamayim Nekudotayim operator allows access only to the static members of a class?

True

Question:
Which of the following statements is true with regard to comparisons in PHP5?


With (===) operator, object variables are identical if and only if they refer to the same instance of the same class.

Question:
Which of the following built-in function assist in checking if actually the function exists or not?
function_exists


 Question:
What will be the output of the following code?
$a = 0.0;

for ($i = 0; $i < a ="="">

1
Question:
What will be the output of the following code?
$i=4;
$j=30;
$k=0;
$k=$j++/$i++;
echo $i . " " . $j . " " . $k . " ";

5 31 7.5

Question:
Which of the following is a not a correct way of commenting in php?

/#PHP Comment


Question:
Following is a php code block:
$m=9;
$n=99;
$z=8;
$z=$n++/$m++ + --$z;
echo $z;

what will be the output?

18


Question:
Which of the following is the correct way of specifying default value?


function GetDiscount($Type = "Special") { . . . }

Question:
With reference to the following php script:
print 'Text Line1'
print 'Text Line2'
?>

What will be the output on running the script?


Error message will be printed



Question:
What will be the ouput of the following code?

for ($i = 0; $i < i ="="">

0134
Question:
Late PHP versions support remote file accessing for the functions:

include_once()
require_once()
both of them


Question:
You have designed a user login form as follows:

User Name:  
Password:  
How can you access the username entered by the user in the 'Validate.php' webpage?


a. $var= $_POST['username'];
b. $var= $_REQUEST['username'];
c. import_request_variables('p', 'p_');
$var= $p_username;
Both of them



Question:
Which of the following does not represent logical AND operator in PHP?
&amp
Question:
Which of the following is not true for a persistent connection?
These can't be converted to non-persistent connections

Question:
Which of the following are invalid data types in PHP?


char


Question:
The Manager and Office classes are as follows:
class Manager{
function printName() {
echo "Manager";
}
}
class Office{
function getManager() {
return new Manager();
}
}

$ofc = new Office();
???

?>
Which of the following should replace '???' to obtain the value of printName() function?


$ofc->getManager()->printName();

Question:                                                             
The classes are defined as follows:abstract class BaseCls{
protected abstract function getName();
}

class ChildCls extends BaseCls{

}
Which of the following implementations of getName() is invalid in ChildCls?

 public function getName(){}

Question:
Which of the following variable declarations within a class is invalid in PHP5?

var $term =3;
Question:
What will be the output of following code?
$arr = "a";
$arr[0]="b";
echo $arr;
echo $arr[0];


bb

Question:
For the following code:
the output will be:

171

Question:
What is the result of the following expression?
5+2 * 4+6

19

Question:
What will be the output of following code?
$var = 1 + "-1.3e3";
echo $var;

-1299

Question:
What will be the output of following code?
$var1="a";
$$var1="b";
echo "$var1 $a";

a b

Question:What is the output of the following code?
$a = 500;
$b = 200;

echo $a % 2
* $b;
?>

0

Question:
What will be the ouput of the following code?

if (-1)
print "true";
else
print "false";
?>

true


Question:
What will be the output of the following code?
echo 12 . 6;

126

Question:
Consider the following sample code:
$x = 0xFFFE;
$y = 2;
$z = $x && $y;

What will be the value of $z?

1 

Red is the ANSWERS
Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)