Real-Time Data Analysis and System Design

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What is a key consideration when designing systems that manage real-time data versus those that manage historical data?

Different solutions (correct)

Scalability

Energy efficiency

Cost

What is the primary goal of identifying the correct needs of a system?

To reduce energy efficiency

To optimize for all requirements

To identify the technical solutions (correct)

To understand the phenomena being observed

What is a characteristic of event-driven data delivery approaches?

Data is transmitted continuously

Sensor nodes transmit their data only when an event is noticed (correct)

Data is transmitted on query

Data is transmitted periodically

What is a benefit of adjusting sampling time to lower for more slowly changing phenomena?

Preserving other resources while maintaining good accuracy Signup and view all the answers

What is a key challenge in designing systems that manage data?

Balancing conflicting requirements Signup and view all the answers

What is a factor that affects the technical decisions on how to obtain, transmit, process, and analyze data?

Application needs Signup and view all the answers

What is a characteristic of IoT data in terms of its generation?

Data is generated on different rates, depending on sources Signup and view all the answers

What is a challenge of IoT data due to its heterogeneity?

Data is in various formats, including semi-structured and unstructured data Signup and view all the answers

What is a characteristic of IoT data in terms of its uncertainty?

Data is sometimes uncertain and unreliable Signup and view all the answers

What is a characteristic of IoT data in terms of its velocity?

Data is generated on different rates, depending on sources Signup and view all the answers

What is a consequence of making decisions based on problematic IoT data?

It can cause issues and inaccurate decisions Signup and view all the answers

What is a characteristic of IoT data in terms of its volume?

A large amount of data is generated per thing Signup and view all the answers

What is the primary concern when using interval-based data transmission in sensor nodes?

Data velocity Signup and view all the answers

Which approach is typically used in alarm-type applications?

Data is pushed by the sensors Signup and view all the answers

What is the primary goal of data aggregation in WSN and IoT?

To provide more refined information rather than raw data Signup and view all the answers

What is a disadvantage of IoT compared to WSN when it comes to data aggregation?

Dealing with less compatible data Signup and view all the answers

What is determined by the querying system in a pull-based data transmission approach?

The data need Signup and view all the answers

What is a common approach to combine multiple data transmission methods?

Combining more than one data transmission method Signup and view all the answers

Real-Time Data Analysis and System Design

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