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

1. Which tools are used for security considerations in the Hadoop ecosystem? (Select all that apply)

A) Apache Sentry
B) Apache Atlas
C) Apache Knox
D) Apache Flink
E) Apache Ranger

2. What is characteristic of HBase?

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

3. Which CouchDB function can be used to create a document?

A) Update
B) Insert
C) Create
D) List

4. Refer to the exhibit.

Which shows a table named Student.
What changes must be made to the table in order to achieve 1NF?

A) Split table into two tables named Student and Zip
B) Remove duplicate rows in the table
C) Make Zip the primary key in the table
D) Split table into two tables named Student and DoB

5. Which IoT data processing tool enables businesses to make real-time decisions to capitalize on the Analytics of Things (AoT)?

A) Apache Kafka
B) Nautilus
C) Pravega
D) Apache NiFi

Solutions: