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9.1 Is Bluetooth a suitable technology to use in this scenario? Motivate your answer - NSC Computer Application Technology - Question 9 - 2017 - Paper 2

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9.1 Is Bluetooth a suitable technology to use in this scenario? Motivate your answer. 9.2 A member's voting controller does not connect to the wireless network, alt... show full transcript

Worked Solution & Example Answer:9.1 Is Bluetooth a suitable technology to use in this scenario? Motivate your answer - NSC Computer Application Technology - Question 9 - 2017 - Paper 2

Step 1

Is Bluetooth a suitable technology to use in this scenario? Motivate your answer.

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Answer

Bluetooth is not a suitable technology for this scenario because it has a limited range of around 10 meters, which may not cover the distance from all audience members to the server. Additionally, signals can be obstructed by walls and other obstacles, making it unreliable for ensuring all votes are received by the server.

Step 2

Name TWO troubleshooting steps that can be followed to solve the problem.

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Answer

  1. Ensure that the device is paired with the server. If it isn’t, it won’t be able to connect.
  2. Restart the device and server to refresh the connection and eliminate any temporary glitches.

Step 3

Explain what is meant by streamed.

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Streaming refers to the continuous transmission of audio or video content over the internet. In streaming, the data is delivered in small packets, allowing the content to be played back in real-time as it is received, rather than waiting for the entire file to download.

Step 4

Name TWO components that are required to be able to stream a live event.

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  1. A high bandwidth internet connection to support the data flow required for streaming.
  2. A digital camera or computer capable of capturing the event and transmitting it live.

Step 5

State ONE potential disadvantage of using live streaming.

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One potential disadvantage of live streaming is that data usage can be high, which may lead to buffering issues if the connection speed is insufficient.

Step 6

Which type of software can be used for input by visually impaired users?

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Answer

Speech-to-text software can be used by visually impaired users to input data and navigate their devices through voice commands.

Step 7

State TWO advantages of a wireless network over a cabled network.

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Answer

  1. Wireless networks are generally more convenient as they eliminate the need for physical cables, allowing devices to connect from anywhere within range.
  2. Wireless networks facilitate mobility, enabling users to move freely with their devices without being restricted by cable length.

Step 8

State TWO additional hardware components that are required to create the wireless network.

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Answer

  1. A wireless access point or wireless router to enable network connectivity.
  2. A Wi-Fi adapter to provide wireless capability to devices that do not have built-in wireless functionality.

Step 9

Which upgraded version of Wi-Fi will be suitable to use for the wireless network?

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Wi-Fi 5 (802.11ac) or Wi-Fi 6 (802.11ax) would be suitable for creating a fast and reliable wireless network.

Step 10

Give TWO examples of what NFC (near field communication) can be used for.

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Answer

  1. NFC can be used for contactless payments, allowing users to make transactions by tapping their devices at a point of sale.
  2. NFC can be used for data sharing, enabling quick transfer of files or information between two devices that are within close proximity.

Step 11

Describe TWO ways in which the organisers can prevent their computers from being accessed by unauthorised software.

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  1. Installing up-to-date antivirus software to protect against malicious programs that can compromise system security.
  2. Regularly scanning the computer for vulnerabilities and suspicious attachments in emails to avoid threats from unauthorized access.

Step 12

What is the function of a driver?

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Answer

A driver functions as a translator between the operating system and the hardware of a device, enabling the system to communicate effectively with hardware components and ensuring proper operation.

Step 13

Faster and improved data processing

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Answer

Utilizing electronic clickers for vote counting is faster than manual counting. It allows for a more accurate and efficient counting process while reducing human errors during the tallying phase.

Step 14

Improved data storage

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Large amounts of voting data can be securely stored on digital mediums such as servers, rather than relying on physical copies like paper, which reduces the risk of loss and enhances accessibility for future reference.

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