Data Management for Digital Ticketing System

Questions and Answers

How can data size be managed to reduce load on a digital ticketing system?

Data size can be managed by compressing data, using concise data formats, and eliminating unnecessary data storage.

What is a key principle of securing user data in a digital system?

The key principle is to securely transmit data and keep data size to a minimum to prevent unauthorized access and data breaches.

In the context of securing user passwords, what does the usability principle of safety entail?

The safety principle ensures that the algorithm is designed to prevent unauthorized access while allowing legitimate users to access their accounts safely.

What is a major security concern in the dentist's mobile van system?

The lack of a secure log-in system and shared email account access pose significant security risks to patient confidentiality. Signup and view all the answers

How does a VPN improve data security in the dentist's mobile van system?

A VPN provides a secure feature of end-to-end encryption, ensuring that data transmitted between the van and central server is protected from interception and eavesdropping. Signup and view all the answers

What is the purpose of a one-time pad algorithm in encryption?

The purpose is to encrypt data using a unique, random key that is only used once, ensuring secure and unbreakable encryption. Signup and view all the answers

How does an 8-character word get encrypted using a one-time pad algorithm?

Each character of the word is encrypted using the corresponding character of the one-time pad key, resulting in a secure and encrypted output. Signup and view all the answers

What is the significance of using 0 as the first index in an array for encryption?

Using 0 as the first index allows for efficient and straightforward encryption, as each character of the plaintext is matched with the corresponding character of the one-time pad key. Signup and view all the answers

What is the purpose of the `GenerateOTPKey` function in the given pseudocode?

The purpose of the <code>GenerateOTPKey</code> function is to generate an array of 8 random numbers. Signup and view all the answers

What is the purpose of the `alphabetLocation` variable in the given pseudocode?

The purpose of the <code>alphabetLocation</code> variable is to find the position of a character in the alphabet array. Signup and view all the answers

How does the given pseudocode ensure that the ciphertext is encrypted correctly?

The pseudocode ensures that the ciphertext is encrypted correctly by using the modulus operator with 26 to wrap around the alphabet array. Signup and view all the answers

What is the purpose of the `Schedules` screen in the smart home system?

The purpose of the <code>Schedules</code> screen is to allow users to set on/off schedules for individual smart plugs and groups. Signup and view all the answers

How would you symbolize the user interface for the `Schedules` screen?

The user interface for the <code>Schedules</code> screen would include a calendar component, a list of devices or groups, and checkboxes or toggle buttons to select the desired schedule. Signup and view all the answers

What is the purpose of the universal password in the digital voting system?

The purpose of the universal password is to authenticate users on voting day. Signup and view all the answers

How would you structure the data for 'Candidate X' in XML format?

The data would be structured as <code>Candidate XYear 11esports captain</code>. Signup and view all the answers

What system features would ensure the implementation of the three voting rules?

Features such as password-protected login, vote counting, and time-stamping would ensure the implementation of the three voting rules. Signup and view all the answers

What is the purpose of integrating the voting system with the existing school database?

The purpose of integrating the voting system with the existing school database is to access student and staff profiles and identify conflicts of interest. Signup and view all the answers

How would you symbolize the data flow for a programmed component that enforces the voting rules while integrating the school database?

The data flow would involve authenticating users, checking for conflicts of interest, and then casting and counting votes. Signup and view all the answers

Study Notes

Digital Ticketing System

To reduce load and keep user data secure, the system follows two criteria: minimizing data size in data stores and securely transmitting data.

Managing Data Size and Security

Minimize data size by: • Reducing unnecessary data storage • Compressing data • Storing only essential data
Ensure data security by: • Encrypting data during transmission • Using secure protocols for data transfer • Implementing access controls and authentication

Algorithm for Securing User Password and Verifying Account

BEGIN • INPUT username • INPUT password • Hash the password using a secure hashing algorithm • Store the hashed password securely • Verify the account by comparing the input password with the stored hashed password

Evaluating Security Impacts for Patient Data

Two personal data security needs not being met: • Lack of secure log-in system for the computer in the van • Multiple staff accessing the email account without secure authentication

VPN Feature for Improving Data Security

A VPN provides a secure feature by encrypting data transmission between the van's system and the central server, ensuring confidentiality and integrity of patient data.

Correcting the One-Time Pad Algorithm

Errors corrected: • Loop counter should be from 0 to 7, not 0 to 9 • Generate OTP key function should return an array of 8 random numbers • Alphabet array should be used for indexing, not alphabetLocation • Output should be displayed outside the loop

User Interface for Smart Home System

Home screen features: • Lists plugs alphabetically • Annotations describe the function of each element • Schedules allow users to set on/off schedules for individual smart plugs and groups

Schedules Screen User Interface

Schedules screen features: • Multiple on/off times per day • Selecting any day of the week • Function of each element: • Tap text to change plug or group • Press calendar icon to go to Schedules screen • Add a new smart plug • Navigate back to previous screen

Evaluating User Interface for Accessibility

Two additional features recommended to improve accessibility: • Voice control for users with mobility impairments • High contrast mode for users with visual impairments

Digital Voting System for Student Leadership Positions

Programmed components: • Registration and login feature using a universal password and student/staff email address • List of candidates organised by nominated leadership positions • Ability to count votes

Unprogrammed Processes for Site Administration

Unprogrammed processes include: • Distributing universal password to registered users via email on voting day • Importing candidate details and nominations in XML format • Checking/verifying votes • Publishing results

Candidate Data Structure in XML Format

XML structure for "Candidate X": • • `Candidate X` • `Year 11` • `esports captain` •

Ensuring Implementation of Voting Rules

System features to ensure implementation of voting rules: • Unique login credentials for each user • Time-based voting system (8:30 am - 4:00 pm) • Limiting votes to one per user

Integrating Voting System with School Database

Data flow for enforcing voting rules while integrating with school database: • School database provides student and staff profiles • Voting system verifies user credentials and checks for conflicts of interest • Voting system ensures one vote per user and enforces time-based voting rules • Results are published and stored securely

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Description

The quiz assesses knowledge on data management strategies for a digital ticketing system, focusing on minimizing data size and ensuring secure data transmission.