1.
Write a post
discussing the following:
(i)
Discuss TCP/IP
protocol.
Transport Control Protocol: Transmission
control protocol (TCP) is a network communication protocol designed to handles
data packets over the Internet. Besides, Transmission Control Protocol is one
of the most used protocols in digital network communications and is part of the
Internet protocol suite, commonly known as the TCP/IP suite.
Internet Protocol (TCP/IP): Internet
Protocol (IP) is the principal set (or communications protocol) of digital
message formats and rules for exchanging messages between computers across a
single network or a series of interconnected networks, using the Internet
Protocol Suite (often referred to as TCP/IP). Messages are exchanged as
datagrams, also known as data packets or just packets. IP is the primary
protocol in the Internet Layer of the Internet Protocol Suite, which is a set
of communications protocols consisting of four abstraction layers: link layer
(lowest), Internet layer, transport layer and application layer (highest).
(ii)
Differentiate
server side code and client side code. List AT LEAST THREE (3) differences.
Server side code: There are several server-side technologies that can be used when
developing web applications. Server-side processing is used to interact with
permanent storage like databases or files. The server will also render pages to
the client and process user input. Server-side processing happens when a page
is first requested and when pages are posted back to the server. Examples of
server-side processing are user validation, saving and retrieving data, and
navigating to other pages.
Client side code: Client side development is done almost exclusively in JavaScript. The reason JavaScript is
called a client side language is because it runs scripts on your computer after
you’ve loaded a web page. In contrast
to server-side code, client-side scripts are embedded on the client’s web page
and processed on the client’s internet browser. Client-side scripts are written
in some type of scripting language like JavaScript and interact directly with
the page’s HTML elements like text boxes, buttons, list-boxes and tables. HTML
and CSS (cascading style sheets) are also used in the client. In order for
client-side code to work, the client’s internet browser must support these
languages.
(iii)
Differentiate THREE (3) network scopes.
Internet: The internet is a global network of
interconnected networks, connecting private, public and university networks in
one cohesive unit.
Intranet: An intranet is a private enterprise network
that uses internet and web technologies for information gathering and
distribution within an organization.
Extranet: An extranet is a community of interest
created by extending an intranet to selected entities external to an
organization.
