1. Packets, Protocols & Addresses
Learning Objectives:
5.1.5 Understand the role of and need for network protocols
5.1.6 Understand that data can be transmitted over networks using packets
5.1.8 Understand the concept of and need for network addressing and host names.

2. Starter

3. Gap Fill Activity
Now complete tasks 5 and 6.1.

4. TCP/IP
An internationally agreed protocol. It starts by establishing a ‘handshake’ to set up a connection between two devices. The data is then transferred as packets between the two devices. It specifies exactly how data must be transmitted.
Now complete task 6.2.

5. Find the MAC address of your (or your friend’s) phone.
MAC Addresses
Like a house, every device on a network needs a unique address to ensure that data reaches the correct destination.
A MAC address is a unique number written into the network card, composed of six pairs of hexadecimal characters.
00:10:5A:44:12:B5
Find the MAC address of your (or your friend’s) phone.
Android: Choose Settings then About phone then hardware information.
iPhone: Choose Settings then General then About (the MAC address is called the Wi-Fi Address).
Now complete tasks 8.1 and 8.3.

6. Host Names
A host name is a human-readable label that is assigned to a network device.
Now complete task 8.2.

7. Match-Up Quiz
Use the match-up quiz generator to create a quiz based on the following key terms:
WAN
LAN
VPN
Protocol
Packet
MAC Address
Host Name