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The following description of the Flink window, which is wrong? (Multiple choice)
The following description of the Flink window, which is wrong? (Multiple choice)A . The scrolling windows do not overlap in time.B . The scrolling windows overlap in time.C . There is an overlap between the time points between the sliding windows.D . There is no overlap between the time point...
SparkStreaming has higher real-time performance than Storm.
SparkStreaming has higher real-time performance than Storm.A . TrueB . FalseView AnswerAnswer: B
Which of the following description of ZooKeeper feature is wrong?
Which of the following description of ZooKeeper feature is wrong?A . Updates sent by the client are applied in the order in which they were sent.B . A message is received by more than half of the servers and it can be successfully written to disk.C . Message updates can...
Which of the following application scenarios generate data based on unstructured data? (Multiple Choice)
Which of the following application scenarios generate data based on unstructured data? (Multiple Choice)A . CRM customer relationship management businessB . Seismic surveying and mapping analysis businessC . Taobao online payment serviceD . Financial instrument imaging businessView AnswerAnswer: BCD
The memory size allocated by YARN to the Container in the Hadoop system can be set by the parameter yarn.app.mapreduce.am.resource.mb.
The memory size allocated by YARN to the Container in the Hadoop system can be set by the parameter yarn.app.mapreduce.am.resource.mb.A . TrueB . FalseView AnswerAnswer: B
Which of the following is the wrong description about Flink barrier?
Which of the following is the wrong description about Flink barrier?A . The barrier is periodically inserted into the data stream and flows as part of the data stream.B . The barrier is the core of the Flink snapshot.C . A barrier separates the data of this cycle snapshot from...
Which application scenarios is HBase not suitable for?
Which application scenarios is HBase not suitable for?A . Require application scenarios with full ACID characteristicsB . Massive data application scenariosC . High throughput application scenarioD . Semi-structured data application scenarioView AnswerAnswer: A
The following statement about ZKFC, which is wrong?
The following statement about ZKFC, which is wrong?A . ZKFC (ZKFailoverController) is used as a client of the ZooKeeper cluster to monitor the status information of the NameNode.B . The ZKFC process needs to be deployed in the node of the NameNode and the Leader node of the ZooKeeper.C ....
Which of the following does not belong to the characteristics of the MapReduce component in Hadoop?
Which of the following does not belong to the characteristics of the MapReduce component in Hadoop?A . Easy to programB . Good scalabilityC . Real-time calculationD . High fault toleranceView AnswerAnswer: C
Which of the following scenarios are not good for Flink components? (Multiple choice)
Which of the following scenarios are not good for Flink components? (Multiple choice)A . Batch processingB . Iterative calculationC . Stream processingD . Data storageView AnswerAnswer: BD
