FlinkmiddleWatermarkmechanism useduntiedecidechaossequenceproblem.WatermarkCan it be produced in the following way?

• A.Inherit get Current Watermark
• B.inheritassiknerWithPunctuateca termmarks
• C.Inherit assignerWithPeriodicWatermarks
• D.Inherit assigner Timestamp WithWatermark

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The key features of Zookeeper include which of the following options?

• A.atomicity
• B.reliability
• C.wait for irrelevance
• D.eventual consistency

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Huawei Fusioninsight HD is the first big data platform in China that complies with national financial and other garbage protection. What are the following aspects of its security?

• A.everything aboveA. True
• B.system security
• C.Data Security
• D.Authority authentication

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Flume's properties configuration file can configure multiple channels to transmit data.

• A.False
• B.True

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ElasticSearch's shards index fragmentation can break up the index data and distribute it to different nodes.

• A.False
• B.True

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