Skip to main content

About this free course

Download this course

Share this free course

Discovering computer networks: hands on in the Open Networking Lab
Discovering computer networks: hands on in the Open Networking Lab

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

3.2 Segmentation of data

In this part you will look how and why data is broken up into smaller chunks for delivery across a network. You will be using the TCP/IP layered model that was introduced in Session 1. This will help you understand the differences between switching and routing that you will be looking at in subsequent parts.

Watch the video below, which is about 4 minutes long.

Segmentation of data

Download this video clip.Video player: 17_segmentation_of_data.mp4
Copy this transcript to the clipboard
Print this transcript
Show transcript|Hide transcript
 
Interactive feature not available in single page view (see it in standard view).

The TCP/IP protocol suite and the concept of layers can be difficult to understand. Try this drag-and-drop activity that highlights some of the main points to take away.

Drag the darker blue answers into the white blank areas.

Activity 2 Test yourself

5 minutes

Which networking device would you use …

Using the following two lists, match each numbered item with the correct letter.

  1. Switch

  2. Router

  • a.… for delivery of data across a local network?

  • b.… for delivery of data across other networks (the internet)?

The correct answers are:
  • 1 = a
  • 2 = b

Which TCP/IP layer is responsible …

Using the following two lists, match each numbered item with the correct letter.

  1. Network Access

  2. Internet

  • a.… for delivery of data across a local network?

  • b.… for delivery of data across other networks (the internet)?

The correct answers are:
  • 1 = a
  • 2 = b

What name is used for a data unit …

Using the following two lists, match each numbered item with the correct letter.

  1. Frame

  2. Packet

  • a.… for delivery of data across other networks (the internet)?

  • b.… for delivery of data across a local network?

The correct answers are:
  • 1 = b
  • 2 = a

What addressing scheme is used …

Using the following two lists, match each numbered item with the correct letter.

  1. MAC address

  2. IP addresses

  • a.… for delivery of data across other networks (the internet)?

  • b.… for delivery of data across a local network?

The correct answers are:
  • 1 = b
  • 2 = a