Free Huawei H13-723-ENU Exam Dumps Questions & Answers

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 damaged copy exceeds the threshold.
• C.The missing copy exceeds the threshold.
• D.The number of lost blocks exceeds the threshold.

In the online log query solution, stream processing is used to complete the calculation. During the entire calculation process, intermediate calculation results need to be temporarily stored. Which of the following components is suitable for storing intermediate calculation results? (multiple choice)

• A.HDfS
• B.HBase
• C.Redis
• D.Kafka

Redis LIST data structure, which of the following scenarios is suitable for? (multiple choice)

• A.Get the latest N data operations: for example, get the latest 10 comments on a Weibo
• B.uniq operation, for example, get the weight value of all data in a certain period of time
• C.Build a queue system, such as a message queue
• D.Simulate stack operation

What are the features of Streaming in FusionInsight HD? (multiple choice)

• A.High performance
• B.Scalable
• C.Stream processing
• D.High fault tolerance

In FusionInsight HD, when using SparkSQL, which of the following methods (or tools) can be used to execute SQL statements? (multiple choice)

• A.spark-beeline
• B.JDBC
• C.spark-sql