Describe the Apache Storm System and Topology DATA-ENGINEERING-OPTIMIZE Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is the role of tuple anchoring in Apache Storm's reliability mechanism?

   • AIt stores tuples in ZooKeeper for recovery
   • BIt establishes a parent-child relationship between tuples
   • CIt assigns a unique ID to each tuple
   • DIt determines the stream grouping for a tuple
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   What does a Storm topology represent in terms of computation?

   • AA cluster configuration
   • BA data storage schema
   • CA streaming computation
   • DA batch processing job
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   What is the smallest unit of parallelism in a Storm topology that can be independently scaled?

   • AExecutor
   • BTask
   • CSupervisor
   • DWorker
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   In an Apache Storm cluster, which component is responsible for distributing code and assigning tasks to worker nodes?

   • ANimbus
   • BZooKeeper
   • CSupervisor
   • DExecutor
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A Storm cluster has 3 Supervisor nodes, each with 4 worker slots. A team submits a topology with 6 workers and a bolt with a parallelism hint of 12. After submission, they notice that the bolt's executors are only running on 2 of the 3 Supervisors, even though the third Supervisor has available slots. What is the most likely reason?

   • AThe topology's worker count is 6, and Storm's scheduler distributed the workers across only 2 Supervisors due to its default scheduling strategy
   • BThe third Supervisor has a different version of Storm than the other two
   • CThe bolt's parallelism hint of 12 requires more than 4 workers, so it cannot fit on the third Supervisor
   • DThe third Supervisor is not running ZooKeeper
   Reveal Solution Discussion Select an answer first