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In FusionInsight HD, what are the roles that belong to the Streaming service? (multiple choice)
In FusionInsight HD, what are the roles that belong to the Streaming service? (multiple choice)A . NimbusB . SupervisorC . BrokerD . quorumpeerView AnswerAnswer: AB
Now Redis is used to cache the data of these 10 tables. For the design of the data structure, which of the following is the best design?
Suppose there is an application, there are 10 tables, each table has tens of millions of records, and the number of fields is about 20. Now Redis is used to cache the data of these 10 tables. For the design of the data structure, which of the following is the...
When a MapReduce application is executed, which of the following actions occurred before the map phase?
When a MapReduce application is executed, which of the following actions occurred before the map phase?A . splitB . combineC . partitionD . sortView AnswerAnswer: A
Which of the following reasons will cause HDFS NameNode to enter safemode (safe read-only mode)? (multiple choice)
Which of the following reasons will cause HDFS NameNode to enter safemode (safe read-only mode)? (multiple choice)A . The disk space where the metadata of the active and standby NameNodes reside is insufficient.B . The number of lost blocks exceeds the threshold.C . The missing copy exceeds the threshold.D ....
When the HDFS client writes files to HDFS with N copies, if one of the copies fails to write, all copies will return the write failure.
When the HDFS client writes files to HDFS with N copies, if one of the copies fails to write, all copies will return the write failure.A . TrueB . FalseView AnswerAnswer: B
In FusionInsight HD, which of the following source types does Flume support? (multiple choice)
In FusionInsight HD, which of the following source types does Flume support? (multiple choice)A . AvroB . HBaseC . KafkaD . HTTPView AnswerAnswer: ACD
What are the several parameter setting methods for Spark applications? (multiple choices)
What are the several parameter setting methods for Spark applications? (multiple choices)A . Configure in the application configuration file spark-defaults.confB . When submitting the application, set it through --confC . In the application code, set by the setProperty method of SparkContextD . In the application code, set through the SparkConf...
To create a table through HBase's createTable method, what parameters must be passed in?
To create a table through HBase's createTable method, what parameters must be passed in?A . Table nameB . Table names and columnsC . Table name and column familyD . Can be emptyView AnswerAnswer: C
Regarding the disaster tolerance of Streaming, which of the following statements is correct? (multiple choice)
Regarding the disaster tolerance of Streaming, which of the following statements is correct? (multiple choice)A . After the Supervisor process exits, it can be automatically recognized and pulled up by Nimbus without affecting the running business.B . Worker can be automatically pulled up by Supervisor after abnormal exit without manual...
In this scenario, which of the following is the best solution?
A certain project needs to save the online data in a certain area and search the full text whether there is any sensitive information in these online records to prevent crimes in the area. In this scenario, which of the following is the best solution?A . Create an index on...
