3. Network Model Select an industry or a business what you know better (especial

Question

3. Network Model Select an industry or a business what you know better (especially how It works). Identify activities and design a protocol suit Application Layer a. b. i. List of all of header names within the request and response of HTTP protocol Briefly write down their functions C. TCP Suppose there is a small commercial retail building in your town that has essentially one room. On one side of the room is a real estate agency and on the other side of the room is a guy who sells tea. What is the relationship between this setup and the concept of IP addresses with TCP port numbers? What are the principal functions of TCP and what would happen in computer communication without this layer? i. ii.

Explanation / Answer

3.(a)

Consider the Network of a College.

There can be numerous activities related to network on a college campus such as:

> Downloading/ Uploading of data

> Intranet sharing

>Firewall blocking of prohibited materials and security protocols

Now for a college TCP/IP Protocol is used along with firewall and other web filtering tool to avoid unreliable connection and poor performance.

(b)

HTTP headers allow an exchange of some additional information between client and server. It consists of

General header:

>Date (time in seconds for an object has been in a proxy cache)

>Cache-Control (Directives for Caching Mechanism)

>Connection (Whether the connection closes after the transmission)

Request Header:

>Accept (Understanding the content)

>Cookie (Looking for any cookie for the link before)

>User Agent ( Identifying the device used to access the web page)

Response Header:

>Age

>Location ( URL to redirect the page to)

>Server ( Information about the softwares used by the server)

Entity Header

>Content type (specifies the content type such as text or doc files)

>Content Encoding (Encoding used for the content of the web page)

c(i)

Port numbers are used to address different services running on the same machine.

Here the tea seller and the real estate agency are services but the region of the room they are occupying is referred to as the port address.

c(ii)

Principle functions of TCP:

>Establish and maintains a connection between client and server

> It Controls data handling and packaging

>Data transfer

> Providing reliability to the connection.

> Providing flow control and congestion avoidance.

If TCP layer was not there then the whole OSI model will collapse, it is the main layer which connects client and server (the backbone of the internet)

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.