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EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:

1. What is the purpose of memory management in Apache Flink?

A) Ensure no disk space is ever required
B) Convert all of the data into Java objects
C) Control how much memory the runtime operations use
D) Eliminate the need for serialization of the data

2. Match each Apache Storm component with its description.

3. Which encoding standard is used by Python 2 to store strings?

A) Binary
B) ASCII
C) Unicode
D) Static

4. What is characteristic of HBase?

A) Data warehouse infrastructure that can compile SQL queries and run the jobs in cluster
B) Tool that combines SQL, streaming, and complex analytics
C) Tool that performs real-time write operations on large datasets using Key/Value pairs
D) High-level language platform for analyzing and querying large data sets stored in HDFS

5. What is a difference between Data Governance and Master Data Management (MDM)?

A) Data Governance is a formalized system of decision making.
MDM is a comprehensive method to link all data elements to a common point of reference.
B) Data governance focuses mainly on IT practices.
MDM creates the rules and decisions for operational data processes.
C) Data governance implementation involves people, policies, rules, and metrics.
MDM is done automatically with no interference.
D) Data governance is an informal system of decision making.
MDM is a formal system of decision making.

Solutions: