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Huawei HCIP-Big Data Developer Sample Questions:

1. 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

2. Suppose there is an application, there are 10 tables, each table has tens of millions of records, and the number of fields is about 20.
Now Redis is used to cache the data of these 10 tables. For the design of the data structure, which of the following is the best design?

A) A hash structure is adopted, and a table uses a hash KEY, and a row in the table records a field for the hash KEY.
B) Using a hash structure, each row record of each table uses a hash KEY, the field of the hash KEY corresponds to the field of the table record, and each table is designed with a different prefix to distinguish it.
C) Using string structure, each row of each table uses a KEY, and value is the concatenated value of all the fields in a row of the table.
D) Using string structure, each field in each row of each table uses a KEY.

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

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

4. Hive service and HBase service are deployed on a FusionInsight cluster, and two apps (applications) are deployed on Tomcat. One app is to access the HBase service, and the other app is to access the Hive service. Regarding authentication, which methods are as follows Is it right? (multiple choice)

A) Just do authentication on the app that accesses the Hive service.
B) Just do authentication on the app that accesses the HBase service
C) Combine these two apps into one and do authentication on the new app
D) Deploy these two apps to two independent Tomcats, and then authenticate each

5. 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) Simulate stack operation
C) uniq operation, for example, get the weight value of all data in a certain period of time
D) Build a queue system, such as a message queue

Solutions: