A transport company has a central depot from where they run their operations - NSC Information Technology - Question 3 - 2022 - Paper 2
Question 3
A transport company has a central depot from where they run their operations.
3.1 The company has decided to use a wired LAN for the computers in the control room a... show full transcript
Worked Solution & Example Answer:A transport company has a central depot from where they run their operations - NSC Information Technology - Question 3 - 2022 - Paper 2
Step 1
3.1.1 Name the type of cable that is commonly used in a wired LAN.
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One commonly used type of cable in a wired LAN is UTP (Unshielded Twisted Pair) cable.
Step 2
3.1.2 What media is used to transmit data in a WiMAX network?
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In a WiMAX network, data is typically transmitted using radio waves.
Step 3
3.1.3 Name the wireless technology widely used to transmit data in LAN networks.
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The wireless technology widely used to transmit data in LAN networks is Wi-Fi.
Step 4
3.2.1 What is this type of secure network called?
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This type of secure network is called a VPN (Virtual Private Network).
Step 5
3.2.2 (a) What is an IP address?
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An IP address is a unique address that identifies a device on a network.
Step 6
3.2.2 (b) What is the purpose of a DNS?
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The purpose of a DNS (Domain Name System) is to obtain the correct IP address for a specific URL, allowing users to connect to websites.
Step 7
3.2.3 What is the function of a network interface card (NIC) in a network?
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The function of a NIC is to encode and decode data transmitted across a network and link a device to the network.
Step 8
3.2.4 Explain what an intranet is.
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An intranet is a private network that operates like the internet but is only accessible to a specific organization, providing secure communication within that organization.
Step 9
3.3.1 What does streaming entail?
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Streaming entails the immediate and real-time delivery of media content to a receiving device, allowing users to view the content without the need for complete downloads.
Step 10
3.3.2 How could the company prevent unauthorised users from viewing the content?
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The company could prevent unauthorized users from viewing content by implementing measures such as using a login/password system or restricting access to specific networks.
Step 11
3.4.1 How can a URL be used to determine whether the site uses SSL technology or not?
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A URL can indicate if a site uses SSL technology by starting with 'https://' instead of 'http://', where the 's' denotes that it is secure.
Step 12
3.4.2 (a) Explain how the encryption process works.
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The encryption process involves changing the format of data using a mathematical formula or key to prevent unauthorized access, ensuring that only authorized parties can decode the information.
Step 13
3.4.2 (b) What is the role of the certificate authority in the process of encryption with SSL technology?
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The role of the certificate authority (CA) is to verify the identity of the certificate holder and ensure that the connection is secure, providing trust in the encryption process.
Step 14
3.5 Explain the difference between the functions of a router and a modem.
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A modem converts the format of a signal for a specific communication medium, while a router determines the best route for data transmission between two points on a network, facilitating communication across different networks.
Step 15
3.6.1 Name the type of search where the search is based on the meaning of the words.
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The type of search based on the meaning of words is called a semantic search.
Step 16
3.6.2 Explain the purpose of using SEO by the company.
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The purpose of using SEO (Search Engine Optimization) is to increase the company's visibility in search engine results, making it easier for users to find the website and boosting online traffic.
Step 17
3.7.1 Identify the protocol used by this site.
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The protocol used by the site is FTP (File Transfer Protocol) as indicated by the address 'ftp://'.
Step 18
3.7.2 What other popular type of file sharing services has largely replaced this type of site?
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Cloud storage services such as Google Drive and Dropbox have largely replaced FTP sites for file sharing.
Step 19
3.7.3 Name ONE benefit of using file storage services that are available on the internet.
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One benefit of using online file storage services is the ability to access files from multiple devices, providing flexibility and convenience.
