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?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
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.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
In a star topology, new devices can be easily added, removed, or set up on the network without disrupting others.
Troubleshooting and maintenance are simplified, as issues can be isolated to individual connections.
Step 3
Explain why the use of a switch will be an advantage in a network.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Using a switch in a network allows for better management of network traffic. It directs data to the correct port, which minimizes collisions and increases bandwidth efficiency. This ensures that communications between devices are faster and more reliable.
Step 4
Who is a seeder when downloading files from the internet when using BitTorrent?
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A seeder is a person or point from which a downloaded file is being shared. They have a complete copy of the file and help distribute it to others downloading through BitTorrent.
Step 5
State the difference between the internet and an intranet.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The internet is a vast, global network that shares information accessible to everyone, whereas an intranet is a smaller, private network that shares information accessible only within a limited group or organization.
Step 6
Name the type of network with which they can access these documents through the internet.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The type of network they can access these documents through is a Virtual Private Network (VPN).
Step 7
What is a back door when referring to network security?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A back door is a loophole programmed into software that allows unauthorized access to the system, bypassing standard security controls.
Step 8
Explain what is meant by files being synchronised when saved in this context.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Files being synchronized means that any changes or updates made to the files on one device will automatically be reflected on all other devices connected to the online storage, ensuring that everyone has the most current version.
Step 9
Explain the difference between a customised search and a context-aware search.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A customised search tailors search results based on user-defined criteria or preferences, while a context-aware search uses additional information, such as the user's physical location, to provide more relevant search results.
Step 10
Why does a sponsored link affect the results obtained from a search engine?
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Sponsored links can shift the focus of search results, often leading users to paid advertisements rather than organic search results. Advertisers pay for their links to appear, sometimes even when not relevant to the search query.
Step 11
Name TWO different scripting languages.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
JavaScript.
PHP.
Step 12
Briefly explain how server-side scripting is implemented to establish an interactive web page.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Server-side scripting retrieves information from a database based on the user's profile or request. The web page is dynamically created on the server before being sent to the user's browser, allowing for personalized and interactive content.
Step 13
State TWO advantages of using a DSS.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A Decision Support System (DSS) analyses data and presents it summarized, aiding managers in making informed decisions.
It assists in identifying trends, thereby supporting decision-making processes effectively.
Step 14
Give ONE reason why the quality of information presented by wikis, such as Wikipedia, are NOT always reliable.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Wikis can be edited by anyone, which can lead to misinformation or unverified content being presented as factual.
