In the Fusionlnisght HD system, the number of Partitions and the number of copies must be set when creating a Kafka Topic. Setting multiple copies can enhance the disaster recovery capability of…

Question

Options

• ATrue
• BFalse

• A
  72% (28)
• B
  28% (11)

Explanation

Option A is correct because when creating a Kafka Topic in FusionInsight HD (Huawei's big data platform), you must configure both the number of Partitions (which controls parallelism and throughput) and the number of Replicas/Copies (which controls fault tolerance). Multiple replica copies ensure that if a broker node fails, other brokers holding copies of the partition data can continue serving requests - this is precisely what "disaster recovery capability" means in this context.

Option B is wrong because the statement is entirely accurate: both parameters are indeed required at Topic creation time, and multiple copies genuinely do enhance disaster recovery by preventing data loss when nodes go down.

Memory tip: Think of Partitions as "lanes on a highway" (more lanes = more throughput) and Copies/Replicas as "backup lanes" (if one lane is blocked, traffic reroutes). In Kafka, you always set both at Topic creation - you can't add disaster recovery as an afterthought. The phrase "copies → disaster recovery" is a direct 1:1 relationship worth memorizing.

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