Questions and Answers
Which of the following is a symmetric encryption algorithm?
Asymmetric encryption algorithms use the same key for both encryption and decryption.
False
What are the three stages of a simple algorithm?
Input, Process, Output
The Australian Privacy Principles were established in the year _____ to guide the handling of personal information.
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Match the following data transmission protocols with their primary functions:
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Which of the following factors affects data security?
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Latency refers to the delay in data transmission over a network.
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What is the role of hashing in data storage and transfer?
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During a video call with a friend, you notice a long delay between asking a question and your friend responding. This is most likely due to:
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Which Australian Privacy Principle would be breached if a librarian provided details about a customer who borrowed a book to a friend?
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JSON is a human-readable format that is suitable for data exchange between systems.
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The __________ network protocol is primarily used to exchange files over the internet.
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In a streaming data system to ensure high-quality video, which of the following must be minimised?
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Explain the purpose of code comments and annotations.
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Why is JSON an effective exchange method for customer data across a networked system?
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Match the following network transmission protocols with their primary functions:
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All data in a programming environment must be converted to JSON format for secure data exchange.
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What are the features of network protocols that facilitate data transfer?
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Study Notes
Encryption and Authentication Strategies
- Symmetric encryption algorithms include DES, Triple DES, AES, Blowfish, and Twofish, which use the same key for both encryption and decryption.
- Asymmetric encryption, such as RSA, uses a pair of keys (public and private) for encryption and decryption, enhancing security during data transmission.
- Data compression reduces file size, while encryption secures data during storage and transfer, and hashing ensures data integrity by generating fixed-size output from input data.
Usability and User Interface Development
- Usability principles focus on making solutions user-friendly and efficient, influencing design and functionality.
- Visual communication principles aid in the development of user interfaces, ensuring clarity and enhancing user experience.
Australian Privacy Principles (APP)
- APP (2014) emphasizes ethical handling of personally identifiable or sensitive data, mandating transparency and secure management in digital environments.
Network Transmission Principles
- Key concepts include latency (delay in communication), jitter (variation in packet arrival time), and protocols like HTTP, HTTPS, FTP, and VPN which govern internet data transmission.
- Efficient methods for data exchange involve REST, JSON, and XML, facilitating structured communication across networked systems.
Problem Analysis and Solution Requirements
- Boundary of scope determination involves analyzing constraints, requirements, and environmental limitations relevant to the problem.
- Critical components for solution implementation include ensuring data integrity, modular design, and evaluating security risks related to data confidentiality, integrity, availability, and privacy.
Data Processes and Code Implementation
- Data flow diagrams illustrate the relationship between external entities, data sources, processes, and storage, aiding in system analysis.
- Code comments and annotations enhance understanding and clarity of algorithms and functions within the codebase.
Digital Communication and Representation
- Effective communication employs language conventions, annotations, sketches, and diagrams to convey solutions and information clearly to specific audiences.
- Prototyping components for data exchange solutions ensures structured information handling, utilizing appropriate programming environments.
Database Management and SQL
- SQL commands such as CREATE, DROP, ALTER, INSERT, and SELECT facilitate data manipulation and structure management in databases.
- Understanding data types, error-checking, iterative structures, and collections, including arrays and lists, is fundamental for effective programming.
Evaluation and Security Impact
- Desk checking algorithms helps validate their functionality and predict outputs, identifying potential errors.
- Assessing data security impact involves analyzing implications on personal, social, and economic needs, refining solutions based on prescribed and self-determined criteria.
Key Questions for Review
- Features of network protocols: Identify key characteristics of two protocols that facilitate website data transfer.
- Understanding latency in communication: A long response delay in video calls typically indicates latency issues.
- Effectiveness of JSON: Recognize why JSON is suitable for data exchange across networks due to its human-readable format and ease of integration with programming languages.
- APP breach scenarios: Understanding which Australian Privacy Principle would be violated in a situation of unauthorized information disclosure.
- Streaming requirements: Ensure minimal latency and jitter for optimal video and audio streaming quality.
- FTP protocol purpose: Acknowledge that FTP is primarily used for file exchange over the internet.
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Description
This quiz focuses on the various encryption and authentication strategies for securing data transmissions. Explore the differences between symmetric and asymmetric encryption algorithms, including DES, Triple DES, AES, Blowfish, Twofish, and RSA. Test your understanding of how data compression and encryption work together to protect information.
