Apache Interview Questions and Answers

Question: What is Apache?
Apache is Web server application.


Question: What is use of Apache in Web Server?
Apache's role is all about communication over networks, and it uses the TCP/IP protocol (Transmission Control Protocol/Internet Protocol which allows devices with IP addresses within the same network to communicate with one another).


Question: From where Apache names comes?
The name "Apache" derives from the word "patchy" that the Apache developers used to describe early versions of their software development.


Question: What are feature of Apache?
Following are modules supported by Apache

• mod_access, 
• mod_auth, 
• mod_digest, 
• mod_auth_digest
• Secure Sockets Layer 
• Transport Layer Security support (mod_ssl), 
• proxy module (mod_proxy)
• URL rewriter (mod_rewrite)
• custom log files (mod_log_config)
• mod_ext_filter.

Question: Is Apache opensource?
Yes, It is


Question: Who is Initial Author of Apache?
Robert McCool


Question: In which language Apache is written?
'C' Language


Question: What is offical website of Apache?
httpd.apache.org


Question: Do I need Programming Skills to install Apache in my system?
No, You need not.

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How to remove all classes using jQuery?

Question: How to remove class for single tag or single element with jQuery?

$(document).ready(function() {
    //Use this 
    $("#idName").removeAttr('className');

    //OR use this, both will be work same
    $("#idName").attr('class', '');
});

Any element having id="idName", Its class will be removed.
Element can p, div and p etc.
removeAttr is jQuery's inbuilt function, So you must call this function after loading the jQuery file.

$(document).ready() is used to identify jQuery file loaded.


Question: How to remove class for multiple tags in single line?

$(document).ready(function() {
    $(".className").removeAttr('className');
});

Any element having className class, "class" will be delete from html  tag.
Element can p, div & p etc.
removeAttr is jQuery's inbuilt function, So you must call this function after loading the jQuery file. $(document).ready();, is used to identify jQuery file loaded.


Question: How to remove class for single tag or single element without jQuery?

$(window).load(function() { 
    //Use this 
    document.getElementById('idName').className = '';
});

Any element having idName's class will be removed.
Element can pdiv and p etc.
$(window).load();, is used to identify html is fully loaded.

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