Quiz Review - (1-2)
Master the Data Pipeline Quiz
Test your knowledge on data engineering and pipeline management with our comprehensive quiz! This quiz covers various aspects of data pipelines, SQL databases, and data management techniques, ensuring you have a solid understanding of the field.
Whether you’re an aspiring data engineer or a seasoned pro, this quiz will help reinforce your knowledge and highlight areas for improvement. Challenge yourself today!
- 34 engaging questions
- Various topics including SQL, NoSQL, and data lakes
- Improve your skills and knowledge
How does Alooma help if schema changes? (Choose all)
Automapper can automatically create new columns or adjust records to account for adds/changes
Restream Queue collects any data that is not loaded to warehouse
It cannot if engineering is not told
Dylan teaches them a lesson
What could happen if the engineer doesn't tell the BI team that they are going to change a field/schema?
Data is lost
Automatic consolidation occurs
Replication starts
What are the key takeaways to the story of how Alooma started? (Select all)
Companies are moving data to the Cloud
Surveyed around 150 companies
Saw the need for engineers to do pipelining better
Justin was pivotal at closing a funding round
What is the restream queue? (select all)
Lets you define how the events from each input are handled
Ensures full data integrity
Adjusts fields when new columns are added
Collects all the events that were not loaded to data warehouse
What are our competitors' equivalent to Restream Queue (who use batch method)? (Select all)
Copy/Paste
Resend the data over again as a batch
They do not fix errors at all
For Max's example of a customer who thought we were pushing twice the number of events to Redshift, what was actually happening?
They were duplicating their events using the code engine
They were not accounting for different languages
They had a hidden server that they didn't know about
What are some examples of events that could cause errors to occur? (select all)
Data warehouse is down
Credentials went bad
Automapper did not recognize the field
The restream queue restreamed the events
Why do companies struggle with scaling (in context of data pipelines)? (select all)
Underestimate how difficult it is to add a new input
Cannot handle the speed of data coming in
Manual processes between the analysts and engineers
What are distinguishing characteristics about data scientists? (select all)
Often work with BI tools
Enjoy coding
Come up with the questions to answer
Mathematician who can code
What angle should we take when 'selling' a data engineer? (select all)
Auto Mapper can save them time
No longer have to wait on Engineering Resources
Code Engine can help them transform the data
What would they rather be doing with their time?
What are distinguishing 'facts' about data engineers? (select all)
Build the data pipelines
Do not use the data
Often stay up at night with maintenance
Often think it is easy to create a pipeline
What angle should we take when 'selling' a data scientist? (select all)
Auto Mapper can save them time
No longer have to wait on Engineering Resources
Code Engine can help them transform the data
What would they rather be doing with their time?
What is an array? (select all)
Multiple items stored in a list
[1, 2, 4, "IA"]
Multiple items stored in [keyvalue] pairs
True/False
What is a dictionary/record data type? (select all)
Multiple items stored in a list
[1, 2, 4, "IA"]
Multiple items stored in [keyvalue] pairs
True/False
What does SQL stand for? (Choose Best Answer)
Standard Query Language
Simple Query Language
Standard Question List
Structured Query Language
What is one reason that SQL is important? (Choose best answer)
It allows you to speak to dylan
It allows you to dream about sunshine on a cloudy day
It allows you to communicate with a database
It solves every problem in a pipeline
What is schema? (Choose best answer)
Method to connect tables inside SQL
A series of complicated schemes (capers)
A non-structured approach to a data warehouse
Organization of data within a database (e.g. Names and data types)
What is an example of a NoSQL database that Alooma supports? (Select all)
MongoDB
Cassandra
Redis
Postgres
What is a VPN? (Choose Best Answer)
Virtual Private Network
Virtual Personal Network
Visual Private Network
Visual Personal Network
Which Data warehouse(s) does Alooma support? (Up to Date)
Amazon Big Query
MySQL
Google Redshift
Snowflake
Why do companies choose Redshift versus Big Query? (Select all)
Redshift is built like a more traditional SQL database
It can be more costly/difficult to use BQ if other applications are Amazon
Redshift is a more managed solution
What is Hadoop? (Select All)
Open Sourced Project
The quickest data warehouse option
Often compared to Google Big Query
Designed to store extremely large datasets
What is a data lake? (Select all)
Similar to a data warehouse but uses a flat architecture
A storage method for data
Has no traditional hierarchy system (i.e. Files or folders to store data)
What makes a schema change so difficult for analysts, BI team, or data scientists? (Select all)
They do not have access to the source database
They have to wait on engineers (IT) to fix the pipeline
Field is no longer an integer or a column has been moved/renamed
Why use a data warehouse (versus 1 large database)? (select all)
CRUD is faster
Need to transform or do some sort of action on the source database
Have multiple data sources with different schemas
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