General Instructions

An image recognition program uses machine learning (ML) to recognise letters. It is trained using a range of images of handwritten letters. Each of the images below is labelled with the letter B when training the program.

Fragment 1 and Fragment 2 are Python code that achieve the same purpose.
 

Fragment 1

numbers = [1, 2, 3, 4, 5]
total = 0
for num in numbers:
    total += num
print(total)
 

Fragment 2

numbers = [1, 2, 3, 4, 5]
print(sum(numbers))

Consider the following cascading style sheet (CSS) code fragment for a website.

    body {

        font-size: 100%;
        font-style: italic;
        line-height: 1.8;
        font-weight: normal;
    }
    hl {
        text-align: center;
        font-style: normal;
        font-size: 250%;
        letter-spacing: Spx;
        background-color: rgb(0, 0, 100);
        color: white;
        font-weight : 900;
        border: 3px solid green;

    }

Consider this code fragment.

FOR index = 5 TO 3
    word[index] = word[index-2]
NEXT index

The array, word, contains the following data.

index

word[index]

A weather app is to be designed to display real-time updates such as:

• rain commencing within the next 10 minutes
• weather event warnings and warning cancellations
• location specific weather conditions.

An algorithm is required by a school to rate the risk of a location for school excursions.

A teacher completes a 10-question survey to assess potential hazards for the location. Each question is given a score from 1 (low) to 5 (high), and the scores are stored in a 10-element integer array called Risks.
 

The scores for each question are added to give a total risk score.

The excursion risk is rated as:

• Low (total less than 20)
• Medium (total between 20-35)
• High (total above 35).

A streaming service has exclusive rights to broadcast a live event each Sunday afternoon.

In an organisation, temporary passwords are automatically generated for new user accounts. Each password is created from the first three letters of the username followed by '123'.
 

For example, the username 'NESA' will have the password 'NES123'.
 

When a user logs in for the first time, they are asked for their username and password. They receive a welcome message or an error message, depending on whether the password entered follows the rules of new user accounts.

Below is the Issues table for a technical support company. Fix Time, in minutes, is the time taken to complete each job.

An animal classification tool is to be developed. The classes to be used are shown below.

A food delivery service offers prepackaged meals tailored to different dietary preferences, for example, vegetarian and gluten-free. It has developed a website for customers to place orders. The website is ready for testing and feedback.
 

The website includes:

• a menu that dynamically updates based on meal availability
• user accounts where customers can track deliveries and manage subscriptions
• a backend that processes orders and payments, updates stock and communicates with the delivery team.

A construction company introduces a safety monitoring system that uses art ificial intelligence. Cameras and wearable sensors track worker
movements and environmental conditions. The system detects unsafe behaviours through artificial intelligence, such as:

• standing too close to operating machinery
• entering restricted zones
• failure to wear personal protective equipment (PPE).
   

Alerts are sent in real-time to site supervisors, andlong-term data is stored for further analysis.

An airline introduces a virtual personal assistant as an initial support contact point for cancelled flights, missed connections, or lost luggage. The virtual personal assistant uses a neural network to:

• analyse support queries to direct customers to the appropriate department
• recommend appropriate tone and wording to be used by the human customer support representative
• assess data such as support turnaround time, customer ratings, and repeat contacts.

As part of a computer game, a program is needed to randomly place 15 diamonds on a 5 × 5 grid. Once the locations of the diamonds have been generated, the program outputs the 5 × 5 grid, with the location of each diamond signified by an 'X'.
 

An example of the output required is shown below.

| X |   | X |   | X |
|   | X |   |   | X |
|   | X | X | X |   |
| X |   | X |   |   |
| X | X | X | X | X |

Watch the video, and then answer the question.