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

1. In Python, which non-primitive data structure can only be a collection of primitive data types?

A) Dictionary
B) Tuple
C) Array
D) List

2. What is a data pipeline best practice related to Extract-Transform-Load (ETL) jobs?

A) ETL jobs should be manually executed and monitored to ensure the highest quality.
B) ETL jobs should be flexible to source data changes such as new variables or attributes.
C) A failed ETL job should be re-run immediately without taking any corrective actions.
D) A failed ETL job should always be marked as completed so that any other scheduled jobs can execute.

3. What is the storage architecture of Pravega?

A) Object-based storage
B) In-memory storage
C) Columnar storage
D) File-based storage

4. An organization has decided to structure their governance model to allow either a single individual or a team to control and maintain the master data.
Which governance model is being implemented?

A) Distributed
B) Federated
C) Hybrid
D) Centralized

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

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

Solutions: