Question

Web Server Infrastructure

Web application infrastructure includes sub-components and external applications that provide efficiency, scalability, reliability, robustness, and most critically, security.

• The same advancements made in web applications that provide users these conveniences are the same components that criminal hackers use to exploit them. Prudent security administrators need to be aware of how to harden such systems.

Use the graphic below to answer the following questions:

Stage 1	Stage 2	Stage 3	Stage 4	Stage 5
Client	Firewall	Web Server	Web Application	Database

1. What stage is the most inner part of the web architecture where data such as, customer names, addresses, account numbers, and credit card info, is stored?

2. Which stage includes online forms, word processors, shopping carts, video and photo editing, spreadsheets, file scanning, file conversion, and email programs such as G mail, Yahoo and AOL.

3. What stage is the component that stores files (e.g. HTML documents, images, CSS stylesheets, and JavaScript files) that's connected to the Internet and provides support for physical data interactions between other devices connected to the web?

4. What stage is where the end user interacts with the World Wide Web through the use of a web browser?
5. Which stage is designed to prevent unauthorized access to and from protected web server resources?

Answer 1

ANSWERS:

1)The information regarding the customer names,credit card info,adreeses,and other confidential information is stored in the database(stage 5)

2)Web application(stage 4) like mail, helps us to view emails and provide us with the functiionality that we require on the web.

3)Web server(STAGE 3) is responsible for the storage of files like html,images related to the internet and acts as a middleman between the different devices and helping with the interconnection

4)Client stage(STAGE 1) is where the user is actually connected with the internet,a client server forms a bridge to the web server through the firewall by sending an authorised connection request,which upon authentication is opened to the end user.

5)The firewall (STAGE 2)protects against the unauthorised access by accepting or rejecting connection requests upon performing some basic security checks.(just like a gatekeeper)

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