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Technology MCQ and Descriptive Questions & Answers


What is the difference between r+ and w+ modes in Python?
Which of the following is the right way to use the DateTime class?

Which of the following must be installed on your computer so as to run PHP script?

(i) Adobe Dreamweaver

(ii) WAMP

(iii) Apache and PHP

(iv) IIS

Which of the below statements is equivalent to $add += $add?
The memory_limit is only applicable if ________ is enabled when you configure PHP.
In Python, How do you get the current position within the file?
Before you can start processing images with PHP, you must first add the ability to upload images to your administrative form on ________
How many error levels are available in PHP?
Correct syntax of file.writelines() is in Python?
Which version of PHP introduced the concept called late static binding?
The readlines() method returns ____________
Which superglobal stores a variety of information pertinent to a file uploaded to the server via a PHP script?
Which one of the following functions will convert a string to all uppercase?

What will be the output of the following Python expression if a=10 and b =20 ?

a=10
b=20
a=a^b
b=a^b
a=a^b
print(a,b)
What is the default value of max_execution_time directive? This directive specifies how many seconds a script can execute before being terminated.
Which of the following is true for variable names in Python?
Inheritance is the means by which one or more classes can be derived from a/an ___________ class.
What is the return value of trunc() in python?

What would be the output of PHP Unset() function ?

<?php
$_SESSION[‘username’] = “eduqarAdmin”;   
unset($_SESSION['username']);
printf("Username now set to: %s", $_SESSION['username']);
?>
What happens if no arguments are passed to the seek function in Python, ?
In file handling in python, What is the use of “w” in file handling?
Is Python case sensitive when dealing with identifiers?
Before you try to process the file, you need to make sure that your $err value is equivalent to _________
It is not possible for the two’s complement value to be equal to the original value in any case.
Which keyword is used to put a stop on inheritance?
What is the default port number of HTTPs?
Which one of the following statements should you use to set the session username to eduqarAdmin?
Which of the following expressions results in an error for int function?
_______________________ exceptions are raised as a result of an error in opening a particular file.
What is the current syntax of rename() a file in Python?
Which feature allows us to call more than one method or function of the class in single instruction?

What will be the final value of the following Python expression?

float(4+int(2.39)%2)
A mutator method is also called as ___________

How to use array_search() function on PHP array ?

    <?php
    $state = array ("LA", "SFO", "Chicago",
    "Jersey City");
    echo (array_search ("LA", $state) );
    ?>
Which version of PHP introduced the static keyword?
To open a file c:\marks.txt for reading, we use _____________
Which directive sets a maximum allowable amount of memory in megabytes that a script can allow?
In Python, To remove string “hello” from list1, we use which command?
Which of the following will run without errors in python?
([\w-]+) will match ___________
Which one of the following function operates similarly to fgets(), except that it also strips any HTML and PHP tags form the input?

When using mysql_real_escape_string() function, Is there an SQL injection possibility even ?  

If I look at the following PHP code : 


$Id= mysql_real_escape_string($_GET('login'));
$password = mysql_real_escape_string($_GET('password'));

$sql = "SELECT * FROM table WHERE login='$id' AND password='$password'";

Is there any possible injection that would get through the PHP code above?
When you are building administrative links you’ll need to accept two arguments, which of the following are they?

The class from which the child class inherits is called ________

i) Child class

ii) Parent class

iii) Super class

iv) Base class
Which one of the following function checks for the existence of DNS records?
Which one of the following preg PHP functions is used to take a string, and put it in an array?
In Python, To insert 5 to the third position in list1, we use which command?
How many except statements can a try-except block have?

Which of the following method scopes is/are not supported by PHP?

i) private

ii) friendly

iii) static

iv) abstract
What does ~4 evaluate to, in python?