Kafka is a distributed message publishing and subscription system. It only forwards messages and does not save messages.

• A.True
• B.False

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In Huawei's big data solution, which of the following components are included in the hadoop layer?

• A.Miner
• B.Spark
• C.Hive
• D.Flink

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FLINK adopts the checkpoint mechanism to ensure fault tolerance in the running of applications.

• A.False
• B.True

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What items can Fusionlnsight Manager perform health checks on? (Multiple choice)

• A.Service
• B.Role
• C.Host
• D.Examples

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Are the following descriptions correct about the HBase file storage module (HBase FileStream, HFS for short)?

• A.HFS encapsulates the interface between HBase and HDFS
• B.Provide functions such as file storage, reading, and deletion for upper-layer applications
• C.HFS is a separate module of HBase
• D.Applied in the upper layer of Fusioninsight HD

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