Protocols and IP addresses | Computing | Quizalize & Oak National Academy

Starter quiz

What is the main purpose of a computer network?
- to allow computers to communicate and share resources ✓
- to prevent computers from being used
- to make computers run faster
- to store files on a single computer
Which of the following is an example of a device that can be shared on a computer network?
- keyboard
- mouse
- printer ✓
- monitor
Which of these describes a computer network?
- a single computer not connected to any other devices
- a group of devices that can communicate with each other ✓
- a type of software application
- a device that connects to the internet
Which type of cable uses light pulses to transmit data?
- Ethernet cable
- fibre-optic cable ✓
- USB cable
- power cable
Arrange the following steps in the order they would typically occur when sending an email, starting with the first step.
- 1
  
  ⇔
  
  The sender composes the message and enters the recipient's email address.
- 2
  
  ⇔
  
  The sender clicks the "Send" button.
- 3
  
  ⇔
  
  The email server checks if the recipient's address is correct.
- 4
  
  ⇔
  
  The email is delivered to the recipient's inbox.
Match each network hardware component to its description.
- router
  
  ⇔
  
  directs data between different networks ✓
- server
  
  ⇔
  
  provides services to other devices on the network ✓
- client
  
  ⇔
  
  requests services from a server ✓
- network cable
  
  ⇔
  
  physically connects devices in a wired network ✓

Exit quiz

What is a network protocol?
- a type of hardware used to connect devices
- a set of rules that allows devices to communicate ✓
- a unique identifier assigned to each device on a network
- a physical device that connects computers
Which of the following is an example of a protocol used for email communication?
- an email address must have a single "@" symbol ✓
- the use of a password to protect an email account
- the ability to attach files to an email
- the option to forward an email to someone else
What could happen if a website address doesn't follow the correct protocol?
- the web page will not load ✓
- the website will be slower to load
- the user will be unable to access the internet
- the user's computer might be infected with a virus
What is the main reason why computers need protocols when communicating over a network?
- to prevent data from being transmitted too quickly
- to ensure that data is sent to the correct device in the correct format ✓
- to allow users to access websites without an internet connection
- to enable communication between devices that use different operating systems
What is an IP address?
- a physical address where a device is located
- a unique number assigned to a device on a network ✓
- a password used to protect a network
- a type of cable used to connect devices
Which of the following is a valid IP address format?
- 192.168.25.1 ✓
- 192-168-25-1
- 192.168.25
- 192.168.25.256

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Lesson Details

Key learning points

Protocols are sets of rules that are followed to allow communication to take place.
IP adresses are given to devices on a local network.
IP addresses need to be unique on the same network.
The IP addresses of both the receiver and sender need be added to every network message.

Common misconception

Computers only need protocols when sending emails or accessing websites.

Protocols are essential for all sorts of activities, not just email or browsing websites. Protocols are also needed for streaming movies, playing online games, making video calls, etc. Anything being sent across a network needs to follow a protocol.

Keywords

Network - a group of devices connected together, wirelessly or using cables, to enable communication
Protocol - a set of rules used to allow devices to communicate with each other
Ip address - a unique identifier, such as 192.168.4.8, that is assigned to a networked device