Remember: A message is cut into packets, and each packet gets a number. The packets travel by different roads, and the other computer puts them back in order.
Read and answer
Read the story, then answer.
The dragon crosses the seaMina drew the biggest dragon ever for her cousin Sam, who lived across the sea. She tapped send, and the dragon vanished from her screen. Her computer cut the picture into tiny pieces called packets. Each packet got a label with a number and the place it was going. The packets zoomed into the internet, a huge network of computers joined together. Helper computers called routers sent each packet on its way. The packets did not all take one road. One road was busy and slow, so a router sent packets another way. At Sam's house the packets began to arrive, but not in order! Number four came first, and number two came last. Sam's computer used the numbers to put the packets in order: one, two, three, four, five, six. Piece by piece, the dragon appeared on Sam's screen.
1
The packets of Mina's dragon arrive at Sam's computer in this order. Which packet arrived first?
Packet 1Packet 2Packet 4
2
Sam's computer puts the six packets in order. The last one is packet number .
3
All the packets must take the same road.
TrueFalse
4
Packets can arrive in any order.
TrueFalse
5
One road is busy and slow. What does a router do?
It waits for the road to clearIt sends packets another wayIt stops the message
6
Why does every packet get a number?
So it travels fasterSo the router can keep itSo the other computer can put the packets back in order
Match, order and fix
7
Join each word to what it is.
1a packet
2a router
3a packet's number
4the internet
Aa huge network of computers joined together
Btells it its place in the order
Ca small piece of a message
Dsends each packet onward
8
Circle everything that is written on a packet's label.
🔢its number📍the place it is going🎨the dragon's colors
9
Put what happened to Mina's picture in order.
Mina's computer cuts the dragon into packets
Sam's computer puts the packets in order
The packets travel by different roads
The whole dragon shows on Sam's screen
Each packet gets a number and a place to go
The packets arrive at Sam's house, maybe in any order
10
A friend says packets always arrive in order, so numbers are not needed. What is the mix-up to fix?
Packets can arrive in any order, so the numbers are neededPackets are not cut up at allRouters never send packets anywhere
11
The dragon was cut into six packets. Packets 4, 1, 6 and 3 have arrived. Which packets are still on their way?
5 and 61 and 22 and 5
12
Write a short message in four pieces, one on each line, and number the pieces.
13
Draw two roads from Mina to Sam, one busy and one clear. Draw packets on them.
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