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
Question 3
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
Step 1
Which LAN standard is commonly used in a cabled network?
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Answer
The LAN standard commonly used in a cabled network is Ethernet.
Step 2
Give TWO reasons why a star topology is popular in networks.
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Answer
New devices can easily be added or removed without disrupting the network.
If any connected device breaks, the rest of the network remains unaffected.
Step 3
Explain why the use of a switch will be an advantage in a network.
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Using a switch improves network efficiency as it can direct network traffic to the correct port, thereby reducing unnecessary data transmission and lessening overall congestion on the network.
Step 4
Who is a seeder when downloading files from the internet when using BitTorrent?
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A seeder is the person or point from which a downloaded file is being shared to others in the BitTorrent network.
Step 5
State the difference between the internet and an intranet.
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The internet is a vast global network accessible to everyone, while an intranet is a private network accessible only to a limited group, often used within organizations.
Step 6
Name the type of network with which they can access these documents through the internet.
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The type of network they can use to access documents over the internet is a Virtual Private Network (VPN).
Step 7
What is a back door when referring to network security?
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A back door is a loophole programmed into software that allows bypassing the security controls in a network or application.
Step 8
Explain what is meant by files being synchronised when saved in this context.
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Files being synchronised means that any changes or updates made to the files will automatically be reflected in all devices linked to the online storage, ensuring consistency across platforms.
Step 9
Explain the difference between a customised search and a context-aware search.
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A customised search is tailored to specific user preferences based on past behavior, while a context-aware search uses additional data, such as the user's location, to refine search results.
Step 10
Why does a sponsored link affect the results obtained from a search engine?
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Sponsored links appear based on payments made by advertisers, which can skew the visibility of relevant results based on the search query.
Step 11
Name TWO different scripting languages.
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JavaScript
PHP
Step 12
Briefly explain how server-side scripting is implemented to establish an interactive web page.
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Server-side scripting retrieves user-specific information from a database and dynamically creates a web page that is sent to the user's browser, allowing for personalized content.
Step 13
State TWO advantages of using a DSS.
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It helps in analysing information for better decision-making.
It presents information in a summarised format, aiding management in making informed choices.
Step 14
Give ONE reason why the quality of information presented by wikis, such as Wikipedia, are NOT always reliable.
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Wikis are often edited by users, which can lead to misinformation or biased perspectives being presented unless properly moderated.
