A data engineer has a Job with multiple tasks that runs nightly. One of the tasks unexpectedly fails during 10
percent of the runs.
Which of the following actions can the data engineer perform to ensure the Job completes each night while
minimizing compute costs?

• A.They can set up the Job to run multiple times ensuring that at least one will complete
• B.They can observe the task as it runs to try and determine why it is failing
• C.They can institute a retry policy for the entire Job
• D.They can institute a retry policy for the task that periodically fails
• E.They can utilize a Jobs cluster for each of the tasks in the Job

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Which of the statement is correct about the cluster pools?

• A.Cluster pools allow you to create a cluster
• B.Cluster pools allow you to save time when starting a new cluster
• C.Cluster pools are used to share resources among multiple teams
• D.Cluster pools allow you to perform load balancing
• E.Cluster pools allow you to have all the nodes in the cluster from single physical server rack

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A denote the event 'student is female' and let B denote the event 'student is French'. In a class of 100 students
suppose 60 are French, and suppose that 10 of the French students are females. Find the probability that if I
pick a French student, it will be a girl, that is, find P(A|B).

• A.1/3
• B.2/3
• C.1/6
• D.2/6

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Which method is used to solve for coefficients bO, b1, ... bn in your linear regression model:

• A.Apriori Algorithm
• B.Ridge and Lasso
• C.Ordinary Least squares
• D.Integer programming

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A data engineer needs to create a database called customer360 at the loca-tion /customer/customer360. The
data engineer is unsure if one of their colleagues has already created the database.
Which of the following commands should the data engineer run to complete this task?

• A.CREATE DATABASE IF NOT EXISTS customer360 LOCATION '/customer/customer360';
• B.CREATE DATABASE IF NOT EXISTS customer360 DELTA LOCATION '/customer/customer360';
• C.CREATE DATABASE customer360 DELTA LOCATION '/customer/customer360';
• D.CREATE DATABASE customer360 LOCATION '/customer/customer360';
• E.CREATE DATABASE IF NOT EXISTS customer360;

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