18 Questions
What is a key consideration when designing systems that manage real-time data versus those that manage historical data?
Different solutions
What is the primary goal of identifying the correct needs of a system?
To identify the technical solutions
What is a characteristic of event-driven data delivery approaches?
Sensor nodes transmit their data only when an event is noticed
What is a benefit of adjusting sampling time to lower for more slowly changing phenomena?
Preserving other resources while maintaining good accuracy
What is a key challenge in designing systems that manage data?
Balancing conflicting requirements
What is a factor that affects the technical decisions on how to obtain, transmit, process, and analyze data?
Application needs
What is a characteristic of IoT data in terms of its generation?
Data is generated on different rates, depending on sources
What is a challenge of IoT data due to its heterogeneity?
Data is in various formats, including semi-structured and unstructured data
What is a characteristic of IoT data in terms of its uncertainty?
Data is sometimes uncertain and unreliable
What is a characteristic of IoT data in terms of its velocity?
Data is generated on different rates, depending on sources
What is a consequence of making decisions based on problematic IoT data?
It can cause issues and inaccurate decisions
What is a characteristic of IoT data in terms of its volume?
A large amount of data is generated per thing
What is the primary concern when using interval-based data transmission in sensor nodes?
Data velocity
Which approach is typically used in alarm-type applications?
Data is pushed by the sensors
What is the primary goal of data aggregation in WSN and IoT?
To provide more refined information rather than raw data
What is a disadvantage of IoT compared to WSN when it comes to data aggregation?
Dealing with less compatible data
What is determined by the querying system in a pull-based data transmission approach?
The data need
What is a common approach to combine multiple data transmission methods?
Combining more than one data transmission method
This quiz covers the concepts of real-time data analysis, system design, and the trade-offs between different system requirements. It explores how application needs affect system design and the importance of optimizing system performance. Topics include time-critical systems, data transmission, and processing.
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