a network of everyday devices that are connected to the internet and can communicate with each other

the protection of an individual's personal information and the control over how it is used

Internet of Things

Computing

In this unit pupils will explore the impact networks have on our daily lives. They will define what a network is and explore the benefits of networking, before covering how data is transmitted across networks using protocols. They will investigate different types of network and hardware required.

Computer networks and data transmission

a collection of websites connected through hyperlinks

a network of connected devices, such as smart speakers and lights

a type of programming language used to create websites

a network that only connects smartphones and computers

Which of the following best describes the internet of things (IoT)?

Which of these are examples of an IoT device?

The smart speaker is recording all your conversations.

It's constantly sending data to the internet.

The smart speaker is using the microphone to measure the temperature.

Why may a smart speaker always have its microphone turned on?

your activity levels and health information

Many people use fitness trackers or smart watches that connect to the internet. What kind of data might these devices collect and share?

The devices can make it easier for hackers to access your home network.

IoT devices may collect or share data about you without you realising.

The devices and systems can be difficult to set up and use.

They use a lot of energy, which can increase your electricity bill.

How can IoT devices sometimes raise privacy concerns?

Which of these are a potential benefit of the IoT?

It breaks down the web page data into packets.

It stores and delivers the web page data to the user's web browser.

It encrypts the web page data for secure transmission.

What is the role of a web server in displaying a web page?

HTTP is a secure protocol that encrypts data.

HTTP defines the rules for communication between web browsers and web servers.

HTTP is not a commonly used protocol on the internet.

Which of the following statements about HTTP is true?

a small segment of data that is part of a larger message

a set of rules for sending and receiving data

an error message sent across the internet

What is a data packet when talking about networks?

to store the main content of the data being transmitted

to provide information about the packet, such as source and destination address

to make it easier to transmit data in smaller chunks

to prevent attackers from intercepting the data

What is the main reason why data is broken down into packets before being sent over the internet?

Packets can take different routes, improving the reliability of transmission.

Packets are always delivered in the correct order.

Packets prevent any data loss during transmission.

Packets are only used for small amounts of data.

Which of the following is a benefit of using packets to transmit data?

Starter Quiz