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Huawei H13-723 Exam Syllabus Topics:

Huawei HCIP-Big Data Developer V1.0 Sample Questions:

1. In Spark, assuming that lines is a DStream object, the filter statement can filter out 80% of the data. Which statement is correct for the following two statements:
X: lines.filter(...).groupByKey(...)
Y: lines.groupByKey(...).filter(...)

A) It is impossible to determine the performance difference between X and Y
B) X and Y have the same performance
C) X has higher performance than Y
D) X has lower performance than Y

2. What are the several parameter setting methods for Spark applications? (multiple choices)

A) When submitting the application, set it through --conf
B) Configure in the application configuration file spark-defaults.conf
C) In the application code, set by the setProperty method of SparkContext
D) In the application code, set through the SparkConf object

3. What is the role of the setMapOutputCompressorClass class in the development of MapReduce applications?

A) Set the compression method of Smap input
B) Set the compression method of map output
C) Set the delivery method of map output
D) Set the compression method of reduce output

4. When developing applications in the FusionInsight HD security version, the keytab file can be used for Kerberos security authentication.

A) False
B) True

5. 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) For fields that do not need to store the original value, the stored attribute can be set to false.
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 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.
D) 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.

Solutions: