DS3002 Sample Quiz

Which of the following is not a typical product of an ETL pipeline?

• Complete analysis with summary data

• Cleaned data that is loaded into a system

• Transformed data that is ready for analysis

• Filtered or sorted data ready to consume

What is the purpose of a "shebang" line in a script?

• Connects the script to the correct interpreter.

• Gives instructions for where to run.

• Grants permissions to another user to execute it.

• Is an internal comment to the developer.

What is a "delimiter"?

• A program that executes your code.

• A separation between data columns.

• A limitation of computing resources.

• A maximum number of records in a data file.

Which of the following is not true about JSON?

• JSON has a strict structure for every record.

• JSON allows you to define arbitrary data fields.

• JSON is made up of only arrays and objects.

• JSON records can freely vary in length.

What are the advantages to using Amazon S3 for data storage? (Select all that apply)

• S3 can be reached by almost any computer.

• S3 can store data objects of any type or size.

• S3 is inexpensive and highly resilient.

• S3 allows me to edit my files without ever downloading them.

In the following bash command, what is the value of $3?

• mycommand

• milk

• bread

• bananas

• water