Exam DP-200 topic 2 question 9 discussion

Actual exam question from Microsoft's DP-200

Question #: 9
Topic #: 2

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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You plan to create an Azure Databricks workspace that has a tiered structure. The workspace will contain the following three workloads:
✑ A workload for data engineers who will use Python and SQL
✑ A workload for jobs that will run notebooks that use Python, Scala, and SQL
✑ A workload that data scientists will use to perform ad hoc analysis in Scala and R
The enterprise architecture team at your company identifies the following standards for Databricks environments:
✑ The data engineers must share a cluster.
✑ The job cluster will be managed by using a request process whereby data scientists and data engineers provide packaged notebooks for deployment to the cluster.
✑ All the data scientists must be assigned their own cluster that terminates automatically after 120 minutes of inactivity. Currently, there are three data scientists.
You need to create the Databricks clusters for the workloads.
Solution: You create a Standard cluster for each data scientist, a High Concurrency cluster for the data engineers, and a High Concurrency cluster for the jobs.
Does this meet the goal?

A. Yes
B. No

Show Suggested Answer

Suggested Answer: A 🗳️
We need a High Concurrency cluster for the data engineers and the jobs.
Note:
Standard clusters are recommended for a single user. Standard can run workloads developed in any language: Python, R, Scala, and SQL.
A high concurrency cluster is a managed cloud resource. The key benefits of high concurrency clusters are that they provide Apache Spark-native fine-grained sharing for maximum resource utilization and minimum query latencies.
References:
https://docs.azuredatabricks.net/clusters/configure.html

by P_11 at June 29, 2020, 4:56 a.m.

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P_11

Highly Voted 5 years ago

High Concurrency does not work for Scala...should B is correct answer Note High concurrency clusters work only for SQL, Python, and R. The performance, security, and fault isolation of high concurrency clusters is provided by running user code in separate processes, which is not possible in Scala. The Table Access Control checkbox is available only for high concurrency cluster https://docs.microsoft.com/en-gb/azure/databricks/clusters/configure

upvoted 31 times

4 years, 12 months ago

"You create a Standard cluster for each data scientist, a High Concurrency cluster for the data engineers, and a Standard cluster for the jobs" Data engineers share same cluster and only use Python and SQL -> High Concurrency Each Data Scientists needs a cluster and they are going to work with R and Scala -> Standard Jobs are going to be executed with Scala -> Standard. So correct answer is Yes

upvoted 39 times