2.2 Packet Switching

2.2 Packet switching

Page 36

Fill in the Blanks

What is the title of todays lesson?

Multiple Choice

Why data needs to be broken down into packets to be sent from one device to the other?

• To reduce the amount of data being sent

• To prevent data from being encrypted during transmission

• To ensure the data can fit through network bandwidth limitations

• Because we like to break down everything

Match

Match each keyword with its definition.

• A section of a packet that contains the destination, the source, and the number packet.

• The actual data of the packet

• The unique address that is given to a device when its connected to a network.

• A small unit of data that is transmitted over a network

• The final section of a packet that contains error detection information.

Header

Payload

Internet Protocol address (IP)

Packet

Trailer

• Header

• Payload

• Internet Protocol address (IP)

• Packet

• Trailer

Fill in the Blanks

A method of transmitting data packets across a network. Each data packet is able to take an individual pathway across the network. (Page 36)

animation
https://upload.wikimedia.org/wikipedia/commons/f/f6/Packet_Switching.gif

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Packet switching

The packets can be transmitted through different pathways across the network.

Packet switching

Fill in the Blanks

What do we call a system where computers and devices are joined together using cables or wireless technology?

Multiple Choice

True or False: There is only one pathway that packets can travel through.

• True

• False

• I decide the pathway. I am the packets master.

Fill in the Blanks

What device determines the pathway that packets will travel through?

Router

is the device that controls which pathway will be used to transmit each packet.

Draw

Activity 2.2 page 37.

Draw the pathway of each of the 5 packets using different colours:

The pathway the first packet takes is(red):

• Router 1 • Router 2.

The pathway the second packet takes is(Orange): • Router 1 • Router 4 • Router 5.

The pathway the third packet takes is(Yellow): • Router 1 • Router 3 • Router 2.

The pathway the fourth packet takes is(Green): • Router 1 • Router 4 • Router 3 • Router 5.

The pathway the fifth packet takes is(Blue): • Router 1 • Router 3 • Router 5.