Computing and Informatic docx.

Assignment 1
Deadline: Sunday 16/02/2020@ 23:59
[Total Mark for this Assignment is 5]
College of Computing and Informatics
Instructions:
You must submit two separate copies (one Word file and one PDF file) using the Assignment Template on
Blackboard via the allocated folder. These files must not be in compressed format.
It is your responsibility to check and make sure that you have uploaded both the correct files.
Zero mark will be given if you try to bypass the SafeAssign (e.g. misspell words, remove spaces between words,
hide characters, use different character sets or languages other than English or any kind of manipulation).
Email submission will not be accepted.
You are advised to make your work clear and well-presented. This includes filling your information on the cover
page.
You must use this template, failing which will result in zero mark.
You MUST show all your work, and text must not be converted into an image, unless specified otherwise by the
question.
Late submission will result in ZERO mark.
The work should be your own, copying from students or other resources will result in ZERO mark.
Use Times New Roman font for all your answers.
E-Portals Development
Student Details:
Name: ###
CRN: ###
ID: ###

Pg. 1 ReferencesReferences
Question One
Ajax—what it is, how it works, and what it’s used for?
Ajax is the abbreviation of Asynchronous JavaScript and XML. It is defined as a
technique though which interactive web applications can be created in a better and
faster process (Jang 2016). This is also made possible by using HTML, CSS,
JavaScript and XML.
The working functionality of Ajax is performed as follows:
1. A user would send a request from the built-in UI. Thus, a call from JavaScript would
go to the XMLHttpRequest object.
2. HTTP Request would be sent to the dedicated server by the XMLHttpRequest object
(Chikurtev, Yovchev and Chikurtev 2016).
3. After the request would be asked, the server would interact with the database using
PHP, JSP, ASP.net and Servlet.
4. Data would then be retrieved from the database.
5. The server would then send JSON data or XML data to the XMLHttpRequest
callback function.
6. The data from HTTP and CSS would then be displayed at the user browser.
Ajax is defined as a client-side script that is able to communicate with the database or
server without the additional need for complete page refresh or post-back. It is thus
1 MarksLearning
Outcome(s):
Describe the use
of portals in
marketing.

Pg. 2 ReferencesReferences
defined as a generic term for the various kinds of JavaScript techniques that are
majorly used for connecting to the web server in a dynamic form without the extra
need for loading different web pages (Deyab and Atan 2015). Thus, AJAX, which runs
in the background of most web pages helps in bringing effectiveness, thus making
applications and websites to run faster and responsive for web users.