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

1. Suppose there is an application that needs to frequently access the user table in the Oracle database. In order to improve performance, Redis is introduced to cache user information.
For this scenario, which of the following is the best data structure choice for Redis?

A) hash
B) sorted set
C) list
D) set

2. In Spark, because DataFrame is a higher-level interface than RDD, the call level will be more. Therefore, the performance of all programs developed based on DataFrame will be worse than that of programs developed based on RDD.

A) False
B) True

3. When the cluster is normal, the Redis client initiates a get call, and there are () message interactions between the client and the server?

A) 1
B) 3
C) 2
D) 4

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

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

5. When creating a user through the FusionInsight manager interface, if you want the user to have read and write permissions for all topics, but do not have the permission to create topics, which group of Kafka service should be added?

A) Kafka group
B) Kafkasuperuser group
C) Kafkaadmin group

Solutions: