Your community has established a community policing forum (CPF) - NSC Computer Application Technology - Question 9 - 2017 - Paper 2
Question 9
Your community has established a community policing forum (CPF). The chairperson of the forum has asked you to help with improving their ICT system.
9.1 The CPF off... show full transcript
Worked Solution & Example Answer:Your community has established a community policing forum (CPF) - NSC Computer Application Technology - Question 9 - 2017 - Paper 2
Step 1
9.1.1 These computers are quite slow. Suggest TWO ways to improve their performance.
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To improve the performance of these computers, you can:
Upgrade the RAM: Increasing the RAM from 1 GB to at least 4 GB will allow for more applications to run simultaneously and enhance overall speed.
Upgrade the Hard Drive to an SSD: Replacing the traditional hard disk drive (HDD) with a solid-state drive (SSD) will significantly improve boot up times and application loading times.
Step 2
9.1.2 The mouse on one of the computers is not working. Discuss how you would go about checking what the problem may be.
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To diagnose the problem with the mouse, follow these steps:
Check the Physical Connection: Ensure that the mouse is properly connected to the USB port and that the cable is not frayed or damaged.
Check the Batter: If it’s a wireless mouse, check if the batteries are functioning and replace them if necessary.
Test with Another Mouse: Use another mouse to see if the issue persists, which can help identify if the original mouse is faulty.
Check Driver Functionality: Restart the computer and check if the driver is functioning properly in the device manager.
Step 3
9.1.3 Currently these computers cannot be connected wirelessly. Name TWO devices that can be added as components to the computers to make wireless communication possible.
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Wi-Fi USB Adapter: This device can be plugged into a USB port on the computer to enable wireless connectivity.
Wi-Fi PCI Card: An internal card can be installed inside the computer to provide built-in wireless capability.
Step 4
9.1.4 State TWO ways in which one can know that these computers are old.
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Slow Performance: If the computers frequently lag when running basic tasks, this is a sign of outdated hardware.
Outdated Operating System: The use of an older version of Windows, such as Windows 7, indicates that the computers may not support modern software and updates.
Step 5
9.2.1 Explain why the CPF should purchase high-capacity hard drives.
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Purchasing high-capacity hard drives is essential because:
Increased Storage Space: High-capacity drives can accommodate more videos, which is crucial for a surveillance system that generates large amounts of data.
Future-Proofing: Higher capacity drives provide flexibility for future storage needs and expansion of the surveillance system.
Step 6
9.2.2 Suggest ONE way to manage the situation when the HDDs are full, but recording must continue.
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One effective way to manage full HDDs is to implement automatic overwriting of the oldest recorded videos. This method ensures that the storage is continuously available while maintaining recent footage.
Step 7
9.2.3 State TWO disadvantages of using wireless cameras.
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Limited Range: Wireless cameras may experience connectivity issues if they are positioned too far from the Wi-Fi router.
Security Risks: Wireless cameras can be more vulnerable to hacking and unauthorized access compared to wired systems.
Step 8
9.3.1 Give TWO reasons why it may not be a good idea to discuss victims of crime on social media.
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Privacy Concerns: Sharing information about victims can compromise their privacy and dignity, potentially leading to further trauma.
Legal Implications: Discussing ongoing legal cases on social media may interfere with investigations and legal processes.
Step 9
9.3.2 Explain why it would be good to use WhatsApp for alerting residents to possible threats.
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Using WhatsApp for alerts is beneficial because:
Instant Communication: WhatsApp allows for immediate communication with residents, ensuring they receive alerts quickly.
Group Functionality: It enables the creation of broadcast lists, sending alerts efficiently to multiple residents at once.
Step 10
9.3.3 What type of software could be used to help residents to access the contents of text messages?
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Text-to-speech software can be utilized to help residents listen to the content of text messages, making the information more accessible, especially for those with visual impairments.
Step 11
9.4 Give TWO reasons why it would be a good idea for the CPF to back up their data to a cloud service.
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Accessibility: Cloud services allow data to be accessed from anywhere with internet connectivity, ensuring that important information is always available.
Disaster Recovery: In case of hardware failures or other disasters, cloud backups provide a reliable recovery option.
Step 12
9.5.1 Name TWO database features that can be used to determine the number of females who are older than 60 years.
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Queries: Features that allow for specific retrieval of records based on set criteria can be used to filter females over 60.
Reports: Reports can be generated to provide summaries and counts of specific demographics in the database.
Step 13
9.5.2 What is the advantage of using an input form instead of a table in Datasheet View to capture data?
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Using an input form offers a user-friendly interface that allows data input conditions to be customized, improves clarity, and reduces input errors compared to the spreadsheet-like table format.
Step 14
9.6.1 Suggest THREE ways to make the graph easier to understand.
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Add a Title: A clear title will help viewers quickly understand the subject of the graph.
Label Axes: Clearly labeling the x-axis and y-axis makes it easier to interpret the data presented.
Add Data Labels: Including data labels on the bars will provide specific values at a glance.
Step 15
9.6.2 Why would a pie graph not be suitable to represent this information?
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A pie graph would not be suitable because it cannot accurately display both types of data (burglaries and car thefts) simultaneously, as pie charts are best suited for parts of a whole rather than for comparing different categories.