Describe Pravega and Its Storage Architecture DATA-ENGINEERING-OPTIMIZE Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is the primary purpose of the low-latency tier (Tier 1) in Pravega?

   • ATo provide long-term, cost-effective storage for historical data.
   • BTo store data in a format compatible with external data lakes.
   • CTo enable fast writes and reads for real-time data access.
   • DTo provide a backup copy of data for disaster recovery.
   Reveal Solution Discussion Select an answer first
2. 17expert · medium

   A company is designing a Pravega deployment for a multi-tenant environment. Each tenant produces a high volume of data and requires low-latency writes. They are considering using a single stream for all tenants with routing keys to separate data. What is a potential drawback of this approach?

   • AA single stream cannot be scaled to handle high volume.
   • BThe durable tier will fill up faster with a single stream.
   • CRouting keys do not work with multiple segments.
   • DA single stream may not provide sufficient isolation, and a noisy neighbor could impact write latency for other tenants.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which statement best describes Pravega's role in a streaming data architecture?

   • AA streaming storage system that provides durable, scalable, and ordered storage for continuous data streams.
   • BA message broker that routes events between producers and consumers with transient queues.
   • CA batch processing framework that periodically ingests and analyzes large volumes of historical data.
   • DA stream processing engine that executes continuous queries over data in motion.
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A fraud detection system uses Pravega to stream transaction data. The system must process transactions for each account in the order they occurred. The team decides to use a routing key based on the account ID. What does this ensure?

   • AThe Flink job can process transactions from all accounts in parallel without any ordering constraints.
   • BTransactions are written to the durable tier immediately, reducing latency.
   • CAll transactions for an account are written to the same segment, preserving order within that segment.
   • DTransactions are evenly distributed across all segments, but order is not guaranteed.
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   Which of the following is a key component of Pravega's storage architecture?

   • APartitions
   • BSegments
   • CBuckets
   • DShards
   Reveal Solution Discussion Select an answer first