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

1. In the FusionInsight HD system, with regard to the Hive JDBC interface type, which of the following descriptions is correct?

A) When using JDBC to submit SQL, you can add a semicolon ";" after the SQL statement.
B) Hive is different from traditional databases, so the connection established by JDBC does not need to be closed.
C) In a secure cluster environment, before establishing a connection with Hive, you need to log in using a unified authentication method.
D) In a network isolation environment, ZooKeeper's IP can be configured as either a service IP or a management IP.

2. In FusionInsight HD, regarding Ooze job management, which of the following operations can be performed on suspended jobs? (multiple choice)

A) submit
B) kill
C) run
D) resume

3. In Spark application development, which of the following codes can correctly count words?

A) val counts = textFile.flatMap (line=>line.split (" ")).map (word => (word, 1)).groupByKey ()
B) val counts = textFile.map (line=>line.split (" ")).map (word => (word, 1)).groupByKey ()
C) val counts = textFile.flatMap (line=>line.split (" ")).map (word => (word, 1)).reduceByKey(_ +_)
D) val counts = textFile.map (line => line.split ("')).map (-rd => (word, 1)).reduceByKey(_ +_)

4. In the MapReduce development framework, what is the function of the InputFormat class?

A) Split the input data into individual splits, and further split the split into <key, value> pairs, which are then used as the input of the map function
B) Combine key-value pairs with the same key value in the result of the map phase
C) Sort and merge the results of the map stage
D) Combine the results of all map stages to get the final result

5. 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) True
B) False

Solutions: