Your community has established a community policing forum (CPF) - NSC Computer Application Technology - Question 9 - 2017 - Paper 2

To troubleshoot the issue with the mouse, I would:

• Check if the mouse is properly plugged into the USB port or if the cord is frayed or damaged.
• Verify if the batteries are dead (for wireless mice) and replace them if necessary.
• Connect a different mouse to the computer to determine if the issue lies with the mouse itself or with the computer settings.

To enable wireless communication for the computers, two devices that can be added are:

1. Wi-Fi USB Adapter: This device plugs into a USB port and provides wireless connectivity.
2. Wi-Fi PCI Card: This card is installed inside the computer and allows for a wireless network connection.

Two signs that indicate these computers are old include:

1. Low Clock Speed: The Intel Dual Core 1.2 GHz processor is considered outdated compared to current standards.
2. Limited RAM: With only 1 GB RAM, the computers may struggle to run modern applications and operating systems efficiently.

The CPF should purchase high-capacity hard drives because:

• Storage Needs: Surveillance video files consume a significant amount of space; high-capacity drives can store a larger volume of data, reducing the frequency of data deletion or transfer.
• Future-proofing: Investing in high-capacity hard drives ensures that the system can accommodate increasing video quality and storage requirements as technology progresses.

One effective way to manage the situation would be to use cloud storage solutions. By establishing a routine to automatically upload old footage to the cloud, the local HDDs can free up space to continue recording.

Two disadvantages of using wireless cameras are:

1. Limited Range: Wireless cameras may have a restricted operational range and may not work well in areas with poor signal reception.
2. Security Risks: Wireless cameras can be vulnerable to hacking or unauthorized access if proper security measures are not implemented.

Discussing victims of crime on social media may not be advisable due to:

1. Privacy Concerns: Victim's identities and personal information could be compromised, leading to legal issues.
2. Public Backlash: Conversations could lead to public shaming or harassment towards victims, particularly from a judgmental audience.

Using WhatsApp for alerts is beneficial because:

• Instant Communication: The app allows for quick dissemination of information to all residents as it delivers messages instantly.
• Group Functionality: Groups can be formed for targeted alerts, ensuring that only those who need to be informed receive the message.

Text message management software or chat client applications can be utilized to help residents access and track conversations, making it easier to retrieve important information.

Backing up data to a cloud service is a good idea because:

1. Remote Access: Cloud storage allows access to data from any location, ensuring important information is available even in emergencies.
2. Automatic Backups: Many cloud services provide features for automatic backups, minimizing the risk of data loss.

Two database features that can assist are:

1. Queries: Specific queries can be created to filter the database and count records that meet the required criteria.
2. Filters: Filters can be applied to view only records corresponding to females over the age of 60.

Using an input form has advantages such as:

• User-Friendly Interface: Forms can be designed with user-friendly interfaces that simplify data entry, especially for those unfamiliar with database layouts.
• Controlled Input: Forms can enforce data validation rules, ensuring higher accuracy in the information collected.

To improve the clarity of the graph, one could:

1. Add a Title: A clear title provides context for the data being represented.
2. Add Gridlines: Including gridlines can help readers track values more easily.
3. Use Different Colors: Employ distinct colors for bars representing different data classifications (e.g., burglaries vs. car thefts) to improve visual differentiation.

A pie graph would not be suitable because it cannot effectively represent two distinct datasets (burglaries and car thefts) simultaneously. This format is better for showing parts of a whole, rather than comparing different categories directly.