TPS
What does TPS stand for in the context of information systems?
Transaction Processing System
What does LAN stand for
Local Area Network
What does Gantt chart represent in project management?
A Gantt chart visually represents a project’s schedule, showing tasks, their durations, and dependencies.
What are the five main elements of multimedia?
Text, images, audio, video, and animation.
What does SQL stand for?
Structured Query Language
What are the two main types of transaction processing?
Real Time and Batch
What is the purpose of a router in a communication system?
A router directs data traffic between different networks, determining the best path for data to travel.
What does the term stakeholder refer to in project management?
A stakeholder is anyone who has an interest in or is affected by the outcome of a project.
What is the primary advantage of using vector graphics over raster graphics?
Vector graphics can be resized without losing quality.
Name four types of information processes in an Information System.
Collecting Organising Analysing Storing Displaying Processing Transmitting and Receiving
In a TPS, what is the role of a “commit” in a transaction?
A commit finalizes a transaction, ensuring all data changes are saved and made permanent.
What is the primary function of an IP address in communication systems?
An IP address uniquely identifies a device on a network, allowing data to be routed correctly between devices.
Name Three Active Listening Techniques
1. Paraphrasing: Restating the speaker’s message in your own words to confirm understanding.
2. Clarifying: Asking questions to get more information or to better understand something the speaker said.
3. Reflecting: Repeating or reflecting on the speaker’s feelings to show empathy and understanding.
4. Summarizing: Giving a brief recap of what the speaker has said to reinforce understanding.
5. Non-verbal cues: Using body language, such as nodding, maintaining eye contact, and appropriate facial expressions, to show engagement and understanding.
Which multimedia file format is most commonly used for streaming audio online?
MP3
What is the primary function of a primary key in a database table?
To uniquely identify each record in a table.
What is an example of a real-world application of a Transaction Processing System?
An ATM withdrawal system, where a transaction is processed in real-time.
What is the significance of the OSI model in communication systems?
The OSI model standardizes the functions of a communication system into seven layers, ensuring interoperability between different systems and technologies.
Distinguish between the Agile and Waterfall Approaches to Project Management
Agile is an iterative, flexible approach focused on continuous improvement and collaboration, while Waterfall is a linear, sequential approach where each phase must be completed before moving to the next.
What is the purpose of a codec in multimedia systems?
A codec is used to compress and decompress multimedia files, allowing for efficient storage and transmission of audio and video data.
What type of database model organizes data into tables with rows and columns?
Relational database model.
What does ACID stand for and what is the role of these properties
ACID stands for Atomicity, Consistency, Isolation, and Durability. These properties ensure that transactions are processed reliably.
Explain what TCP/IP stands for and its importance in modern communication systems.
TCP/IP stands for Transmission Control Protocol/Internet Protocol. It is the foundational suite of protocols that allows devices to communicate over the internet.
Name Three constraints that could be present in any project.
Scope
Time
Cost
Technical Ability
Explain the difference between lossy and lossless compression in multimedia.
Lossy compression reduces file size by removing some data and reducing quality, while lossless compression retains all original data and quality, but results in larger file sizes.
Explain the concept of Normalisation in a Database
Normalisation is the process of organizing data in a database to reduce redundancy and improve data integrity, often involving dividing a database into two or more tables.