Page 181 - Computer_Science_F5
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Computer Science Instructions 1. Imagine you are designing a video-
Exercise 3.8
Use the Internet to complete the
following tasks:
conferencing application. Would
1. Explore the Transport layer
you choose TCP or UDP for data
FOR ONLINE READING ONLY
Investigate how the Transport
considering the characteristics of
layer facilitates end-to-end transmission? Justify your answer
delivery of content between your each protocol and the requirements
computer and a web server with of a video conference
each click on a website. 2. Imagine you are developing a
2. Examine the roles of TCP and UDP reliable file transfer application.
(a) Study the functions of Discuss how understanding error
Transmission Control Protocol detection mechanisms in the
(TCP) and User Datagram Transport layer can be used to
Protocol (UDP) in delivering improve data integrity during file
web content to your computer. transfers.
(b) Highlight the differences 3. Explain the concept of flow control
between TCP and UDP. in the Transport layer. How does it
3. Flow control and congestion prevent data from overwhelming
avoidance the receiver?
(a) Flow control: Explore 4. Imagine you are downloading a
mechanisms that manage large file from the internet. How
the rate of data transmission might flow control mechanisms
between your computer implemented in the Transport
and a web server to prevent layer affect the download speed
overloading. you experience?
(b) Congestion avoidance:
Investigate techniques that
regulate data flow to prevent Application layer
network congestion and ensure The topmost layer in both the OSI and
optimal performance. TCP/IP models of network communication
is known as the Application layer. This
Deliverables: layer acts as a bridge between the end-
Written and detailed report including user and the network, offering a range
explanations, examples, and any of services and protocols that facilitate
relevant diagrams. Use visuals. communication between applications over
a network.
172
for Advanced Secondary Schools
Computer Science Form 5.indd 172 23/07/2024 12:33
