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Cloudera Exam CCA175 Topic 5 Question 47 Discussion

Actual exam question for Cloudera's CCA175 exam
Question #: 47
Topic #: 5
[All CCA175 Questions]

Problem Scenario 76 : You have been given MySQL DB with following details.

user=retail_dba

password=cloudera

database=retail_db

table=retail_db.orders

table=retail_db.order_items

jdbc URL = jdbc:mysql://quickstart:3306/retail_db

Columns of order table : (orderid , order_date , ordercustomerid, order_status}

.....

Please accomplish following activities.

1. Copy "retail_db.orders" table to hdfs in a directory p91_orders.

2. Once data is copied to hdfs, using pyspark calculate the number of order for each status.

3. Use all the following methods to calculate the number of order for each status. (You need to know all these functions and its behavior for real exam)

- countByKey()

-groupByKey()

- reduceByKey()

-aggregateByKey()

- combineByKey()

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Suggested Answer: B

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