The diagram below illustrates the network of a small business - NSC Information Technology - Question 3 - 2018 - Paper 2
Question 3
The diagram below illustrates the network of a small business.
3.1 The computers in the cabled network are used by all staff members and the WLAN is used by clients... show full transcript
Worked Solution & Example Answer:The diagram below illustrates the network of a small business - NSC Information Technology - Question 3 - 2018 - Paper 2
Step 1
3.1.1 Give ONE reason why a wireless network is more suitable for the clients.
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A wireless network is more suitable for clients because it offers portability and mobility, allowing users to connect via laptops or mobile devices from a broader range and access to the network without being tethered by cables.
Step 2
3.1.2 Give ONE reason why all devices must have a unique IP address.
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All devices must have a unique IP address to ensure proper communication over the network, preventing conflicts and ensuring that data is sent to the correct device.
Step 3
3.1.3 Give TWO possible reasons why clients using the WLAN could experience slow connection speeds sometimes.
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Clients using the WLAN could experience slow connection speeds due to being too far away from the router, resulting in weaker signals, and because of too many users accessing the network simultaneously, leading to a lack of sufficient bandwidth.
Step 4
3.2.1 Name TWO services that can be provided by an ISP besides the connection to the internet.
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Two services that can be provided by an ISP besides internet connection are secure web hosting and spam filtering.
Step 5
3.2.2 State TWO benefits of using an ADSL connection.
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Two benefits of using an ADSL connection are that it provides a high-speed and permanent connection, and it allows for simultaneous use of internet access and telephone services.
Step 6
3.2.3 Explain the function of the switch as part of the LAN.
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The switch connects devices within the LAN and directs traffic between them, ensuring efficient communication and management of data packets.
Step 7
3.2.4(a) What medium is used by fibre-optic cables to transmit signals?
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Fibre-optic cables use glass fibers as the medium to transmit signals.
Step 8
3.2.4(b) Give TWO reasons why fibre-optic cables will be more suitable for use in a LAN than UTP cables.
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Fibre-optic cables are more suitable due to their lower interference and less electromagnetic interference (EMI), and their ability to cover larger distances without the need for signal regeneration.
Step 9
3.3.1 Explain what a thin client is.
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A thin client is a lightweight computer that relies on a server for its processing power. It typically has no hard drive and limited hardware resources.
Step 10
3.3.2 Give TWO reasons why the use of thin clients is often preferred.
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The use of thin clients is often preferred because software only needs to be installed on the server, and they save costs due to their lower specifications and smaller physical footprint.
Step 11
3.3.3 What is the purpose of a UPS?
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The purpose of a UPS (Uninterruptible Power Supply) is to provide power to connected devices for a short period during a power failure, allowing for the safe shutdown of systems.
Step 12
3.4.1 Give ONE practical example of how the staff can benefit from using the VPN.
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Staff can benefit from using the VPN as it allows them to work remotely and securely access the business network from any location, maintaining the same level of security as if they were on-site.
Step 13
3.4.2 Name the technique that is used to maintain the privacy of information during transmission on a VPN.
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The technique used to maintain privacy during transmission on a VPN is encryption.
Step 14
3.4.3 Give TWO possible reasons why a staff member may encounter problems trying to connect to the VPN.
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A staff member may encounter problems connecting to the VPN due to incorrect passwords or firewall settings blocking VPN access.
Step 15
3.5 What is the term used to describe the capability of a system to handle a reduction or a growth of its workload?
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The term used to describe this capability is 'scalability,' which refers to the system's ability to be adjusted to accommodate varying loads effectively.
