Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
DigitalTech AS Level
DigiTech AP1/2 Revision Cards WJEC
| Question | Answer |
|---|---|
| What is the purpose of a router? [1] | Connects different networks and forwards data packets between them using IP addresses. In a home, it usually connects the local network to the internet. |
| What is the purpose of a switch? [1] | Connects devices within the same LAN and forwards data to the correct device or port, usually using MAC addresses. |
| What is the purpose of a wireless access point? [1] | Allows wireless devices to connect to a wired network or LAN using radio signals, normally Wi-Fi. |
| Why can a home router be described as a hybrid device? | Connects the home LAN to other networks, such as the internet, and forwards packets between networks. |
| What does the switch function do in a home hybrid device? | Provides wired Ethernet connections between devices on the local network and sends data to the intended device. |
| What does the wireless access point function do in a home hybrid device? | Allows devices such as phones, tablets and laptops to connect to the LAN wirelessly. |
| Why has IPv6 become necessary? | IPv4 has a limited number of addresses, and these began to run out as more computers, phones, sensors and other devices connected to the internet. |
| Write an exam-ready comparison of IPv4 and IPv6. [2] | IPv4 uses 32-bit addressing and has a limited address space. IPv6 uses 128-bit addressing, providing vastly more addresses and allowing the continued growth of internet-connected devices. |
| What is the main difference between IPv4 and IPv6? [2] | IPv4 uses 32-bit addresses, while IPv6 uses 128-bit addresses. IPv6 therefore provides a vastly larger number of possible IP addresses. |
| How can a Machine Learning system improve? | It can improve its predictions or decisions when it is trained with more relevant and suitable data. |
| What Is Machine Learning? | Machine Learning is a subset of Artificial Intelligence in which a computer system is trained using data. It identifies patterns in the data and uses them to make predictions or decisions. |
| How does Machine Learning differ from a traditional algorithm? | A traditional algorithm follows rules explicitly written by a programmer. A Machine Learning system learns patterns or rules from training data instead. |
| How can a Machine Learning system improve? | It can improve its predictions or decisions when it is trained with more relevant and suitable data. |
| Write an exam-ready answer about Machine Learning. [3] | Machine Learning allows a computer system to learn patterns from data and use those patterns to make predictions or decisions. A traditional algorithm follows rules explicitly written by a programmer, whereas a Machine Learning system derives its rules. |
| Give an example of a traditional algorithm compared with Machine Learning. | A traditional spam filter might mark an email as spam if it contains a programmed keyword. A Machine Learning spam filter is trained using examples of spam and legitimate emails, then learns patterns to classify new emails. |
| What are the four phases in the evolution of the Internet? [8] | Connectivity; networked economy; collaborative experiences; Internet of Everything. |
| What was the connectivity phase? | The Internet was mainly used to connect people to information. Examples include email, web browsing and online searching. |
| What was the main purpose of the connectivity phase? | To digitise access to information and allow people to communicate or retrieve information online. |
| Give examples of the connectivity phase. | Email, websites, web browsing and search engines. |
| What was the networked economy phase? | Businesses began using the Internet to connect organisations, customers and business processes. |
| Give examples of the networked economy phase. | E-commerce, online shopping, online banking, digital marketing and digitally connected supply chains. |
| What effect did the networked economy have? | It changed how organisations sold products, communicated with customers and operated their business processes. |
| What were collaborative experiences? | The Internet was used to digitise social and business interactions, allowing people to communicate, share content and work together online. |
| Give examples of collaborative experiences. | Social media, mobile devices, online video, Cloud computing, video conferencing and online collaboration tools. |
| What effect did collaborative experiences have? | They changed how people communicate, work, share information and create content. |
| What is the Internet of Everything? | A connected system involving people, processes, data and things. Devices can collect and exchange data, which can be analysed to support decisions or automated actions. |
| What are the four parts of the Internet of Everything? | People, processes, data and things. |
| Give examples of Internet of Everything systems. | Smart homes, wearable devices, connected vehicles, smart factories and smart cities. |
| How do sensors contribute to the Internet of Everything? | Sensors collect data from the physical world. The data can then be transmitted, analysed and used to trigger actions or decisions. |
| What is the progression between the four Internet phases? | The Internet developed from connecting people to information, to connecting businesses, then connecting people and their experiences, and finally connecting people, processes, data and physical things. |
| What is a concise definition of a LAN? | A Local Area Network connects devices within a limited area, such as a home, school or office. |
| Which device normally uses MAC addresses to identify devices on a LAN? | A switch. |
| Which device normally uses IP addresses to forward packets between networks? | A router. |
| What type of connection does a wireless access point provide? | A wireless network connection, normally using Wi-Fi radio signals. |
Created by:
user-2066060
Popular Computers sets