Drawing a network diagram

Name:

Date:

Class:

Quick Questions

Shade in the A or B circle for each question.

1. In a network diagram, what does a line between two symbols usually show?

A A connection between the two devices

B The amount of RAM in each device

2. Which is the best way to show a device in a network diagram?

A A labelled symbol, such as a box labelled Router

B An unlabelled shape that everyone has to guess

3. How is a wireless link often drawn in a network diagram?

A A solid line is the only option, so wired and wireless look the same

B A dashed line or a wave symbol

4. Which device would you label at the centre of a star network to link the wired computers?

A Monitor

B Switch

5. Where does a router usually sit in a diagram of a home or school network?

A Between the local network and the internet

B Only inside a printer

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1network diagram		AThe symbols are not labelled and the diagram is missing the device that joins them, so you cannot tell how data actually travels.
2Solid line between a laptop and a switch		BTablet - - - - Wireless Access Point
3A wireless link is drawn as a dashed line from a tablet to a wireless access point, showing data can travel without a cable.		CA solid line shows a wired connection, but the tablet connects by Wi-Fi, so the link should be dashed.
4Each device symbol needs a label so the reader knows which device it is, such as the router that connects the network to the internet.		DA drawing that shows each device as a labelled symbol and each connection as a line, so you can see how data can travel between devices.
5[Laptop] ---- [Printer] (no switch or router drawn, no labels)		EA wired link, such as an Ethernet cable, joining two devices
6[Tablet] ---- [Wireless Access Point] (solid line used for a Wi-Fi link)		F[Router] ---- [Switch] ---- [Server]

Definitions

network diagram

Fill in the Blanks

Complete each line of code by filling in the missing parts.

______("Router", "router")

link("Switch", "Server", "_____")

link("Laptop", "Router", "________")

device("File Server", "______")

device("Switch", "switch") device("PC", "computer") ____("Switch", "PC", "wired")

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A add router R1

B add switch S1

C add server Web1

D link R1 S9 wired

Question 2

A add routr R1

B add laptop L1

C link R1 L1 wireless

Question 3

A add router R1

B label R1 "Switch"

C add switch S1

D link R1 S1 wired

Question 4

A add switch S1

B add P1 phone

C link S1 P1 wireless

Question 5

A add router R1

B add switch S1

C add laptop L1

D link S1 L1

E link R1 S1 wired

Answer Key

Drawing a network diagram

Section A: Quick Questions

A — A connection between the two devices

A — A labelled symbol, such as a box labelled Router

B — A dashed line or a wave symbol

B — Switch

A — Between the local network and the internet

Section B: Match the Pairs

network diagram → A drawing that shows each device as a labelled symbol and each connection as a line, so you can see how data can travel between devices.

Solid line between a laptop and a switch → A wired link, such as an Ethernet cable, joining two devices

A wireless link is drawn as a dashed line from a tablet to a wireless access point, showing data can travel without a cable. → Tablet - - - - Wireless Access Point

Each device symbol needs a label so the reader knows which device it is, such as the router that connects the network to the internet. → [Router] ---- [Switch] ---- [Server]

[Laptop] ---- [Printer] (no switch or router drawn, no labels) → The symbols are not labelled and the diagram is missing the device that joins them, so you cannot tell how data actually travels.

[Tablet] ---- [Wireless Access Point] (solid line used for a Wi-Fi link) → A solid line shows a wired connection, but the tablet connects by Wi-Fi, so the link should be dashed.

Section C: Definitions

network diagram — A drawing that shows each device as a labelled symbol and each connection as a line, so you can see how data can travel between devices.

Section D: Fill in the Blanks

device("Router", "router")

link("Switch", "Server", "wired")

link("Laptop", "Router", "wireless")

device("File Server", "server")

device("Switch", "switch")
device("PC", "computer")
link("Switch", "PC", "wired")

Section E: Spot the Error

D — A line can only join devices that are already in the diagram. S9 was never added. The switch is S1, so it should be link R1 S1 wired.

A — The device type is misspelled, so the tool cannot draw the router symbol. It should be add router R1.

B — R1 is the router, so its label must say Router. Labelling it Switch would mislead anyone reading the diagram. It should be label R1 "Router".

B — The add command needs the device type first, then its name. It should be add phone P1.

D — Every link must say whether it is wired or wireless so the correct kind of line is drawn. It should be link S1 L1 wired.