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What component does HBase use by default as its underlying file storage system?
What component does HBase use by default as its underlying file storage system?A . FileB . KafkaC . MemoryD . HDFSView AnswerAnswer: D
How is the main master of HBaseM elected?
How is the main master of HBaseM elected?A . Random selectionB . Ruling by RegionServerC . Adjudication through ZookeeperD . HMaster is a dual-master mode, no adjudication is requiredView AnswerAnswer: C
In the MRS platform, which component does the Flume data flow not need to pass through in the node?
In the MRS platform, which component does the Flume data flow not need to pass through in the node?A . SinkB . ChannelC . TopicD . SourceView AnswerAnswer: C
What is the default block size of HDFS in Fusioninsight HD system?
What is the default block size of HDFS in Fusioninsight HD system?A . 32MB . 64MC . 128MD . 256MView AnswerAnswer: C
Assuming that the data volume is about 200GB and the maximum fragment capacity is limited to 30GB, what is the appropriate design for the maximum number of fragments?
Assuming that the data volume is about 200GB and the maximum fragment capacity is limited to 30GB, what is the appropriate design for the maximum number of fragments?A . 9 or 10B . 7 or 8C . 3 or 4D . 5 or 6View AnswerAnswer: B
What physical resources does Redis consume mainly?
What physical resources does Redis consume mainly?A . MemoryB . BandwidthC . Hard Disk SpaceD . Disk 10View AnswerAnswer: A
Which one of the following descriptions of the characteristics of big data and traditional databases are incorrect?
Which one of the following descriptions of the characteristics of big data and traditional databases are incorrect?A . Big data is the data processing of "fish in the pond" with a clear goal; the data processing of traditional database is to judge whether other kinds of "fish" exist or not...
In the Flink technical architecture, ______ is the calculation engine for stream processing and batch processing.
In the Flink technical architecture, ______ is the calculation engine for stream processing and batch processing.A . StandaloneB . RuntimeC . DataStreamD . FlinkCoreView AnswerAnswer: B
In many small file scenarios, Spark will start a lot of tasks. When there is a Shuffle operation in the SQL logic, it will greatly increase the number of hash buckets, which will seriously affect performance. In Fusioninsight, for small file scenarios, the () operator is usually used to merge the partitions generated by the small files in the Table to reduce the number of partitions, to avoid generating too many hash buckets during shuffle and improve performance?
In many small file scenarios, Spark will start a lot of tasks. When there is a Shuffle operation in the SQL logic, it will greatly increase the number of hash buckets, which will seriously affect performance. In Fusioninsight, for small file scenarios, the () operator is usually used to merge...
What is the correct description of the Loader job in Fusionlnsight HD?
What is the correct description of the Loader job in Fusionlnsight HD?A . After the Loader submits the job to YARN for execution, if the Loade transaction is abnormal at this time, the job execution fails.B . After the Loader submits the job to YARN for execution, if a Mapper...
