5.1 Name a device that connects a LAN to a WAN - NSC Computer Application Technology - Question 5 - 2017 - Paper 2
Question 5
5.1 Name a device that connects a LAN to a WAN.
5.2 State TWO disadvantages of using Bluetooth to connect devices in a home area network (HAN).
5.3 Give TWO reason... show full transcript
Worked Solution & Example Answer:5.1 Name a device that connects a LAN to a WAN - NSC Computer Application Technology - Question 5 - 2017 - Paper 2
Step 1
Name a device that connects a LAN to a WAN.
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Answer
A router or a modem is commonly used to connect a Local Area Network (LAN) to a Wide Area Network (WAN).
Step 2
State TWO disadvantages of using Bluetooth to connect devices in a home area network (HAN).
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Answer
Speed of data transfer is slow: Bluetooth typically offers lower data transfer rates compared to other technologies, which can hinder performance in data-intensive applications.
Range is limited: The effective range of Bluetooth is generally up to 100 meters, which may restrict connectivity in larger areas.
Step 3
Give TWO reasons why a school may not want to use cloud storage for storing large volumes of data.
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High bandwidth costs: Schools may incur significant charges due to the large amount of data being uploaded and downloaded to and from the cloud.
Limited bandwidth and slow internet connection: Accessing cloud storage can be problematic if the school's internet connection is inconsistent or slow, leading to delays in data retrieval.
Step 4
Name ONE type of technology that uses radio waves for data transfer.
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Answer
Wi-Fi is a technology that uses radio waves for wireless data transfer.
Step 5
What is the function of a network switch?
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Answer
A network switch connects two or more computers/devices in a network, efficiently directing network traffic to minimize collisions and enhance performance.
Step 6
User access rights can limit what a user can do on a network.
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Access rights may prevent users from editing documents, accessing certain files or folders, or performing administrative tasks.
Step 7
Which software is required to access a company’s intranet?
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Answer
A web browser, such as Google Chrome or Mozilla Firefox, is typically used to access a company's intranet.
Step 8
Give an example of a program that supports VoIP, other than Skype.
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An example of a program that supports VoIP is Zoom or Microsoft Teams.
Step 9
Why is it not recommended to use VoIP for emergency calls?
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Using VoIP for emergency calls may not be reliable since the internet connection can be unstable and emergency services might not be able to trace the caller's location effectively.
Step 10
Why would a user reduce the quality of VoIP calls?
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A user might reduce the quality of VoIP calls to prevent dropped calls or to save on data costs, especially when using a limited internet connection.
Step 11
Suggest TWO ways in which a user can listen to music on a smartphone that has no headphone jack (port).
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Use wireless Bluetooth headphones or speakers: This allows users to listen to music without the need for a headphone jack.
Use a USB-C or Lightning adapter: These adapters can connect traditional headphones to the smartphone's charging port for audio output.
