The system time of the node where the HDFS client is located must be consistent with the system time of the FusionInsight HD cluster. If there is a time difference, the time difference should be less than a few minutes?
A. 5
B. 20
C. 10
D. 30
正解:A
質問 2:
In the process of Flume cascade transmission, you can use the fail over mode to transmit, so that if the Flume node of the next hop fails or the data is received abnormally, it can automatically switch to another way to continue transmission.
A. False
B. True
正解:B
質問 3:
Regarding FusionInsight HD's Spark, which of the following programming languages can be used to develop Spark applications? (multiple choice)
A. Java
B. Scala
C. C
D. Python
正解:A,B,D
質問 4:
In FusionInsight HD, what are the roles that belong to the Streaming service? (multiple choice)
A. Broker
B. quorumpeer
C. Supervisor
D. Nimbus
正解:C,D
質問 5:
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. Kafka
B. Redis
C. HBase
D. HDfS
正解:A,B
質問 6:
Which of the following descriptions about the characteristics of Kafka is correct? (multiple choice)
A. Kafka can achieve message persistence
B. Kafka is a high-throughput, distributed, publish-and-subscribe messaging system
C. Kafka is suitable for offline and online message consumption scenarios
D. Kafka can ensure that the messages in each Partition are in order
正解:A,B,C,D
質問 7:
When designing a certain collection of Solr, you need to design its Schema, and realize the design of the Schema by configuring the schema.xml file. What is wrong about the Schema statement below?
A. Schema is similar to the table structure in a relational database. It is used to define the structure of index data. It mainly consists of three parts: unlqueKey, Field and FleldType.
B. copyField can be defined as follows: <field name= " cat " type= " string " indexed = " true " stored = " true " docValues= " true " multiValued= " false " /> <field name= " dog " type = " string " indexed = " true " stored = " true " docValues= " true " multi Valued = " false " /> <field name= " text " type= " text_general " indexed = " true " stored = " false " multiValued = " false " /> <copyField source= " cat " dest= " text " maxChars= " 30000 " /> <copyField source= " dog " dest= " text " maxChars = " 30000 " />.
C. For fields that do not need to store the original value, the stored attribute can be set to false.
D. For a field of the same document, there are multiple values, and they all need to be retained, then the multiValued of the field must be set to true.
正解:B
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本当にさ、迷ってるなら、Huaweiの問題集を買えばいいのでは?って感じです。今回のH13-723の問題集の内容もすごくわかりやすくて素敵です。また買いに来ます。