Dell Data Engineering Optimize
Domain 5Objective 2
Describe the Apache Storm System and Topology DATA-ENGINEERING-OPTIMIZE Practice Questions (Page 5)
Part of the Processing Streaming and IoT Data domain, which accounts for 20% of the DATA-ENGINEERING-OPTIMIZE exam.
23questions here
5free pages
7concepts
20%of the exam
Questions 21–23
- 21
Which component in an Apache Storm cluster acts as the coordination service, storing metadata about the cluster and topology state?
Select an answer first - 22
A Storm topology reads IoT sensor readings from a spout. Each reading contains a device ID and a temperature value. The team wants to compute the average temperature per device over a sliding window. They plan to use a bolt that receives all readings for a given device. Which stream grouping should they use to ensure all readings for the same device go to the same bolt task?
Select an answer first - 23
A Storm topology processes a stream of website clicks. A bolt needs to update a shared in-memory cache with every click. The cache is local to each bolt task, and the team wants to ensure that every click is seen by every task of the cache-update bolt. Which stream grouping should they use?
Select an answer first
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