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Microsoft DP-201

Designing an Azure Data Solution

Verified practice questions with detailed answers, clear explanations, and community discussion.

  • 208

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  • 3 days ago

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Question 1 of 208

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.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You are designing an HDInsight/Hadoop cluster solution that uses Azure Data Lake Gen1 Storage.

The solution requires POSIX permissions and enables diagnostics logging for auditing.

You need to recommend solutions that optimize storage.

Proposed Solution: Ensure that files stored are larger than 250MB.

Does the solution meet the goal?

Answer choices
Show answer

Correct answer: B

The proposed solution does not fully meet the goal. Ensuring that files are larger than 250MB is a good start, but the best practice recommendation for Azure Data Lake Storage Gen1 is to have file sizes of at least 256MB or larger. This practice reduces the overhead associated with POSIX permissions and auditing, as well as improving performance metrics such as authentication checks, file connections, and copying/replication speeds. Therefore, the proposed solution of targeting file sizes just above 250MB falls short of this best practice threshold.

Question 2 of 208

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.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You are designing an HDInsight/Hadoop cluster solution that uses Azure Data Lake Gen1 Storage.

The solution requires POSIX permissions and enables diagnostics logging for auditing.

You need to recommend solutions that optimize storage.

Proposed Solution: Implement compaction jobs to combine small files into larger files.

Does the solution meet the goal?

Answer choices
Show answer

Correct answer: A

Implementing compaction jobs to combine small files into larger files is an effective solution for optimizing storage in HDInsight/Hadoop clusters using Azure Data Lake Gen1 Storage. Small files can introduce significant overhead due to numerous POSIX permission checks and auditing processes. By compacting these files into larger ones, the solution reduces the number of open file connections, lowers the overhead from authentication checks, speeds up copying and replication processes, and simplifies the management of permissions. Therefore, the proposed solution meets the goal by optimizing the storage effectively.

Question 3 of 208

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.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You are designing an HDInsight/Hadoop cluster solution that uses Azure Data Lake Gen1 Storage.The solution requires POSIX permissions and enables diagnostics logging for auditing.You need to recommend solutions that optimize storage.Proposed Solution: Ensure that files stored are smaller than 250MB.Does the solution meet the goal?

Answer choices
Show answer

Correct answer: B

POSIX permissions and diagnostics logging in Data Lake Storage Gen1 involve an overhead that becomes more significant with numerous small files. Small files lead to higher authentication checks, more open file connections, and slower copying/replication. To optimize storage and meet the goal, it is recommended to store larger files, ideally at least 256MB, rather than smaller ones.

Question 4 of 208

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.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You are designing an Azure SQL Database that will use elastic pools. You plan to store data about customers in a table. Each record uses a value for

CustomerID.

You need to recommend a strategy to partition data based on values in CustomerID.

Proposed Solution: Separate data into customer regions by using vertical partitioning.

Does the solution meet the goal?

Answer choices
Show answer

Correct answer: B

The proposed solution suggests using vertical partitioning to separate data into customer regions. Vertical partitioning involves splitting a table vertically into multiple tables with fewer columns, and it is typically used to distribute tables with different schemas across databases. However, the requirement is to partition data based on CustomerID values, which indicates a need to distribute rows across multiple partitions. This is best achieved using horizontal partitioning, or sharding, which evenly distributes rows of a table across multiple databases with identical schemas based on a partition key like CustomerID. Therefore, vertical partitioning does not meet the goal, and the correct answer is 'No'.

Question 5 of 208

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.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You are designing an Azure SQL Database that will use elastic pools. You plan to store data about customers in a table. Each record uses a value forCustomerID.

You need to recommend a strategy to partition data based on values in CustomerID.

Proposed Solution: Separate data into customer regions by using horizontal partitioning.

Does the solution meet the goal?

Answer choices
Show answer

Correct answer: B

The proposed solution suggests separating data into customer regions using horizontal partitioning. However, the goal is to partition data based on values in CustomerID, not on regions. Horizontal partitioning, also known as sharding, should be used to partition the data based on the customer ID values to ensure efficient distribution and management of data across databases. Therefore, the proposed solution does not meet the goal as stated.

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Charles Sirois
Canada
As this was my first certification exam, I was understandably nervous about what to expect. These study materials made the preparation process much easier, and many of the questions closely reflected those on the actual exam.
Lance Chambers
United States
Wasted about a month going through the free dump sites scattered all over reddit, half the answers were wrong and the other half were for a version of the exam that doesn't even exist anymore. Eventually gave in and paid the small fee here, and the difference was night and day.
Alisha Kelly
Italy
Honestly, I had already gone through the official documentation quite thoroughly, but still didn't feel fully confident going in. This helped things finally click for me. I realized I knew the material, but just hadn't connected all the pieces yet.
Casper Claassen
Netherlands
Used this along with Microsoft Learn and the combo worked really well. The practice questions made the stuff I'd read actually stick. Passed first attempt, no complaints from me.
Gabriele Ghesla
Italy
The content is accurate and clearly presented, and it's more affordable than competitors. The team has been incredibly responsive whenever I've had an issue, and they've been open to small changes that improve the platform.
Morgan Farmer
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I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
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Neil Savage
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A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.
Morgan Farmer
United Kingdom
I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Remi Nuyts
United States
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Archie Hopkins
United States
I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
Nancy Mcbride
United States
Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Neil Savage
United States
A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.

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