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5.1 What is the '802.11' communications technology or standard better known? 5.2 Explain what the general function of a firewall is - NSC Computer Application Technology - Question 5 - 2016 - Paper 2
Question 5
5.1 What is the '802.11' communications technology or standard better known? 5.2 Explain what the general function of a firewall is. 5.3 Name TWO Internet techno... show full transcript
Worked Solution & Example Answer:5.1 What is the '802.11' communications technology or standard better known? 5.2 Explain what the general function of a firewall is - NSC Computer Application Technology - Question 5 - 2016 - Paper 2
Step 1
Step 2
Explain what the general function of a firewall is.
Answer
A firewall controls and monitors access from the network/devices to and from another network, such as the Internet. It acts as a security barrier that prevents unauthorized access and protects the integrity of the internal network.
Step 3
Step 4
Give TWO advantages for a user of using an app on a phone instead of a web browser to access a banking site or Facebook.
Answer
- Fewer steps to get to the content - users can open the app directly without needing to navigate through a web browser.
- Simplified layout and functionality - apps are specifically designed for mobile use, providing a better user experience.
Step 5
Briefly explain what file synching (file synchronisation) is and why it is so useful.
Answer
File synching is a system/method of keeping files that are on multiple devices in several different physical locations consistent and up to date. It is useful because it ensures that the same version of a file is accessible from various devices, reducing the risk of version conflicts.
Step 6
State TWO ways in which websites or Internet services allow you to regain access to your existing account if you have lost your password.
Answer
- Using a recovery (or registered) email address with a link to reset your password.
- Sending a message/code to your registered cellphone number for verification.
Step 7
Suggest TWO realistic ways of ensuring that the data cap/limit on your Internet lasts the whole month without reducing the amount of time you spend on the Internet.
Answer
- Limit the amount of video streaming by avoiding high-definition content and using lower resolutions.
- Use a browser that consumes less data, such as Opera Mini.
Step 8
Give TWO reasons why it might be better to use the 'bookmarks'/favourites' feature to 'remember' a previously visited website as opposed to using the 'history' feature.
Answer
- Bookmarks/Favourites are categorized and easier to search for specific previously visited sites.
- The History feature is recorded chronologically, making it more cumbersome to find a specific website that was previously visited.