Huawei HCIA-Big Data V2.0 - H13-711 模擬練習
Which of the following are the resident processes of the Spark service? "Multiple choices"
正解: A,B
HDFS supports large file storage, and supports multiple users to write to the same file, as well as modify the file anywhere.
正解: B
The Kerberos system is designed with client / server structure and DES encryption technology to enable mutual authentication. Both the client and the server can perform identity authentication for each other.
正解: A
Among the following options, is the exact description of the role of the standby NameNode in Huawei Fusioninsight HD system? "Multiple choices"
正解: B,D
Fusioninsight HD system deployment elbow, if the Solr index is stored on HDFS by default, do you understand the following correctly?
正解: B
After a Loader job in Fusioninsight HD is submitted to Yam, the job cannot be stopped manually.
正解: B
The minimum processing unit of HBase in Fusioninsight HD system is Region. Where is the routing information between User Region and RegionSeiver stored?
正解: B
When using Flume to input data, in order to prevent losing data due to restart of the Flume process, which of the following channel types is recommended?
正解: B
Which of the following types of data is not semi-structured?
正解: D
About the Fusioninsight HD installation process is correct?
正解: C
A user information table megjable is stored in HBase of Fusioninsight HD, and Rowkey is the user megjable?
ERSIONS => 2 Which pieces of data will be returned?
ERSIONS => 2 Which pieces of data will be returned?
正解: B
From the perspective of the life cycle, which stages does the data mainly go through? (Multiple choices)
正解: A,B,C,E
Each stage of a Spark task can be divided into jobs, and the score is marked as shuffle.
正解: B
When the HDFS Client writes a file, the writing position of the first copy of the data is determined by the NameNode, and the writing position of the other copies is determined by the DataNode.
正解: B