Graded Quiz: ETL and ELT Processes
Graded Quiz • 30 min Quiz10 Questions Week 1
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Graded Quiz: ETL and ELT Processes

Graded Quiz • 30 min Quiz10 Questions Week 1

Q:

ETL process consists of Extract > Transform > Load. Which of these three processes is also known as data wrangling?

Q:

The ELT process has no information loss. What is the main reason for this benefit?

Q:

Which of the following pain points does ELT address?

Q:

ETL processes include a storage facility called a staging area. In ELT the staging area fits the description of what?

Q:

There are many techniques for extracting data. Choosing the technique usually depends on what?

Q:

Extracting data from IoT devices involves large volumes of redundant data. What is used to decrease the data volume of redundant data and only extract features of interest from raw data?

Q:

ETL uses the schema-on-write approach and ELT uses the schema-on-read approach. What is the biggest difference in these two approaches?

Q:

Which of the following examples of information loss during transformation can involve false negatives?

Q:

Which of the following loading techniques is between batch and stream loading?

Q:

Which of the following loading techniques can split a single file into smaller chunks?

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