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3.1 A network is formed when connecting two or more devices to make communication between the devices possible - NSC Information Technology - Question 3 - 2021 - Paper 2
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3.1 A network is formed when connecting two or more devices to make communication between the devices possible. 3.1.1 Which LAN standard is commonly used in a cable... show full transcript
Worked Solution & Example Answer:3.1 A network is formed when connecting two or more devices to make communication between the devices possible - NSC Information Technology - Question 3 - 2021 - Paper 2
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3.1.2 Give TWO reasons why a star topology is popular in networks.
Answer
- Ease of Troubleshooting: In a star topology, if one device fails, it does not affect the rest of the network. This makes it easier to identify and resolve issues.
- Scalability: New devices can be easily added or removed from the network without disrupting the entire network structure, allowing for flexibility as needs change.
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3.1.3 Explain why the use of a switch will be an advantage in a network.
Answer
A switch enhances network performance by directing data packets to the correct port based on the destination MAC address. This capability reduces network congestion and increases overall efficiency, as it minimizes unnecessary traffic and maximizes bandwidth.
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3.3.1 Employees will need to have access to their documents stored on the server at the office. Name the type of network with which they can access these documents through the internet.
Answer
The type of network they would use is a Virtual Private Network (VPN). A VPN allows secure access to the office network over the internet.
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3.3.3 Explain what is meant by files being synchronised when saved in this context.
Answer
Synchronised files automatically update across all devices connected to a shared online storage. When changes are made, files saved on one device will reflect changes on all other devices, ensuring that employees have access to the most current version.
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3.4.1 Explain the difference between a customised search and a context-aware search.
Answer
A customised search is tailored to include specific parameters based on user preferences or needs. In contrast, a context-aware search incorporates additional information, such as the user's location, to provide more relevant results.
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3.5.2 Briefly explain how server-side scripting is implemented to establish an interactive web page.
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Server-side scripting processes user requests on the web server before sending a response to the web browser. This allows for dynamic content generation tailored to individual user actions, enhancing interactivity.
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3.6 State TWO advantages of using a DSS.
Answer
- Analyse Information: A Decision Support System (DSS) helps analyze large amounts of data to aid in decision-making processes.
- Present Information: It can present data in summarized or graphical formats, facilitating easier comprehension and quicker decisions.
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3.7 Give ONE reason why the quality of information presented by wikis, such as Wikipedia, are NOT always reliable.
Answer
Wikis can be edited by anyone, which raises concerns about the accuracy and credibility of the information provided. Without proper vetting, the content may be biased or factually incorrect.