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web.groovymark@gmail.com
- November 30, 2024
Question 41
Which IoT processing method involves reducing data to essential information?
a) Compression
b) Summarization
c) Encryption
d) Scaling
Correct Answer: b) Summarization
Explanation: Summarization transforms data into an easily understandable format, representing key trends and patterns.
Question 42
Which IoT stream processing system is considered second-generation?
a) Hadoop
b) Flink
c) Kafka
d) Spark
Correct Answer: b) Flink
Explanation: Flink is a second-generation stream processing system known for automated scaling and real-time data analysis.
Question 43
What is the primary purpose of using data compression in IoT?
a) Increasing data speed
b) Reducing storage and transmission needs
c) Enhancing data security
d) Expanding data volume
Correct Answer: b) Reducing storage and transmission needs
Explanation: Data compression minimizes the space required for data storage and transmission, saving resources in IoT systems.
Question 44
What is an LPWAN designed for in IoT applications?
a) High-speed data transmission
b) Long-range, low-power communication
c) Short-range, high-power communication
d) Secure data storage
Correct Answer: b) Long-range, low-power communication
Explanation: LPWAN is ideal for IoT, balancing long-range communication with minimal power consumption.
Question 45
What is an example of a common operation on streaming IoT data?
a) Data mining
b) Batch processing
c) Group compression
d) Real-time summarization
Correct Answer: d) Real-time summarization
Explanation: Real-time summarization simplifies data streams by presenting key insights as they are generated.
Question 46
Which component in an IoT platform manages access control for data?
a) Data server
b) Protocol adapter
c) Gateway
d) Access Control Module
Correct Answer: d) Access Control Module
Explanation: The Access Control Module restricts data access to authorized users, enhancing security in IoT systems.
Question 47
What does stream processing allow in terms of data analysis?
a) Delayed processing
b) Real-time insights
c) Data grouping for analysis
d) Simplified device control
Correct Answer: b) Real-time insights
Explanation: Stream processing enables immediate insights by analyzing data as it’s generated, crucial for time-sensitive applications.
Question 48
Which tool helps secure IoT devices by managing configurations?
a) AWS IoT Device Defender
b) Data Access Platform
c) Edge Compute
d) Gateway
Correct Answer: a) AWS IoT Device Defender
Explanation: AWS IoT Device Defender audits and monitors IoT configurations, ensuring device security.
Question 49
Which IoT architecture type supports only stream processing?
a) Lambda
b) Kappa
c) Tangle
d) Batch
Correct Answer: b) Kappa
Explanation: Kappa architecture focuses on stream processing, making it efficient for real-time data applications.
Question 50
In IoT, what is the main advantage of the Lambda architecture?
a) Supports stream and batch processing
b) Only allows batch processing
c) Only allows stream processing
d) Reduces device cost
Correct Answer: a) Supports stream and batch processing
Explanation: Lambda architecture combines real-time (stream) and historical (batch) data processing, enhancing IoT data handling flexibility.
