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

1. In Spark, which of the following is the operator that takes the intersection of the DataFrame?

A) dropDuplicates():DataFrame
B) intersect (other: Data Fra me): Data Fra me
C) filter (condifionExpr: String): DataFrame
D) join (right: DataFrame, join Exprs: Column): DataFrame

2. In the FusionInsight HD HBase cluster, Table1 belongs to Namespace1, Table2 belongs to Namespace2, and Table1 has two column families, namely cf11 and cf12, and Table2 has a column family named cf21. Which of the following schemes allows user account A to be at the same time Have read and write permissions for cf11 and cf21. (Multiple choice)

A) Give the user account global read permission
B) Grant the user account Table1 and Tablet2 read and write permissions
C) Grant the user account Namespace1 and Namespace2 read and write permissions
D) Grant the user account Namespace1 read and write permissions

3. 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) 10
B) 20
C) 5
D) 30

4. Which of the following measures can improve the query performance of HBase? (multiple choice)

A) Use secondary indexes to adapt to more query scenarios
B) Query frequent attributes are placed in front of rowkey
C) Pre-divide regions to make regions evenly distributed and improve concurrency
D) The data read at the same time are stored in the same cell

5. In the FusionInsight HD product, what is the role name of the Kafka service?

A) Broker
B) Consumer
C) Producer
D) ZooKeeper

Solutions: