Web Addresses and Discrete Math ApplicationsThe World Wide Web is a boundless resource of...

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Web Addresses and Discrete Math Applications

The World Wide Web is a boundless resource of information. It contains blogs, tutorials, demos, videos, text, references, and resources for just about any topic you may want to research. Computer users visit Web sites identified by an address, or URL (uniform resource locator). You are doubtless familiar with URLs, such as http://www.cnn.com or http://www.fox.com.

Unlike URLs, which use letters, the DNS (domain name system) resolves URLs into a numerical IP (Internet provider) address. These addresses are assigned to nodes in a computer network. While you answer the following questions, ask yourself if there are an infinite number of Web sites available.

Define the following:

What is a URL?

What is an IP address?

What is a DNS?

Explain:

How are URLs assigned to IP addresses?

What does DNS stand for and what does it do?

Is there a limited number of Web sites available using IP version 4 (documented as IPv4)?

What changes have been made in IPv6 compared with IPv4?

Calculate:

Given that an IP address in IPv4 is a 32-bit string, how many different addresses can be encoded? Show your calculation.Hint: Use the multiplication principle.

How many different Web sites could be encoded using IPv6? Show your calculation.

For this assignment, make sure you clearly and completely define, explain, and show all work for your calculations. The assignment should be two to three pages. Include all resources used. Review the Web Addresses and Discrete Math Applications Scoring Guide to understand how the assignment will be graded.

Preety · Accepted Answer

Web Addresses and Discrete Math Applications Assignment
Ans 1: (a). URL (Uniform Resource Locator):  On web, it is used as a tool to discover web pages. It retains the address of a given resource. These resources for example, image, a HTML/CSS web page etc. The manager of the web server is responsible to manage and handle this URL [3]. For example:
 https://www.google.com
https://searchnetworking.techtarget.com/definition/URL
are some examples of URL.
                             
Figure 1: Uniform Resource Locator (with domain name, directory and file path)
Here in Figure 1, which shows the URL and its subparts like www.example.com is the domain name, /image is the directory, apple.jpg is the file contained at that particular path [9].
(b). IP Address (Internet Protocol): It is a distinctive address through which a device has been identify over web. It is a collection of rules leading the organization of data which is directed over web. With the help of IP addresses, communication can be done between various devices. IP address provide and differentiate between various computers, websites, routers etc. [10]. An IP address can be range from 0 to 255. IPV4 and IPv6 are 2 types of IP addresses. In IPv4, it have space of more than 4 billion IP addresses and it is older version as compared to IPV6. Whereas IPv6 version is the latest version, which offer more than trillions of IP addresses as compared to IPV4.
Figure 2: IP Address
As shown in Figure 2, which represents the IP address of 32 bits, separated into 4 parts of 8 bits each. 
Figure 3: Various IP address classes (from A to E)
As shown in Figure 3, which represents various IP addresses range from A to E representing various host addresses as well as network addresses [7].
(c). DNS (Domain Name System):  With the help of DNS, it join the websites through corresponding human readable domain names and these domain names have distinctive ID. For example, internet phone-book. The DNS works as shown in figure 4.
· User i.e.

Web Addresses and Discrete Math Applications The World Wide Web is a boundless resource of information. It contains blogs, tutorials, demos, videos, text, references, and resources for just about any...

Web Addresses and Discrete Math Applications

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