Exam DP-201 topic 4 question 17 discussion

Actual exam question from Microsoft's DP-201

Question #: 17
Topic #: 4

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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A company is developing a solution to manage inventory data for a group of automotive repair shops. The solution will use Azure Synapse Analytics as the data store.
Shops will upload data every 10 days.
Data corruption checks must run each time data is uploaded. If corruption is detected, the corrupted data must be removed.
You need to ensure that upload processes and data corruption checks do not impact reporting and analytics processes that use the data warehouse.
Proposed solution: Create a user-defined restore point before data is uploaded. Delete the restore point after data corruption checks complete.
Does the solution meet the goal?

A. Yes
B. No

Show Suggested Answer

Suggested Answer: A 🗳️
User-Defined Restore Points -
This feature enables you to manually trigger snapshots to create restore points of your data warehouse before and after large modifications. This capability ensures that restore points are logically consistent, which provides additional data protection in case of any workload interruptions or user errors for quick recovery time.
Note: A data warehouse restore is a new data warehouse that is created from a restore point of an existing or deleted data warehouse. Restoring your data warehouse is an essential part of any business continuity and disaster recovery strategy because it re-creates your data after accidental corruption or deletion.
Reference:
https://docs.microsoft.com/en-us/azure/sql-data-warehouse/backup-and-restore

by Ash1602 at July 8, 2020, 1:36 p.m.

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Ash1602

Highly Voted 4 years, 10 months ago

I think this should be NO, as rollback to restore point will affect the reporting and analytic processes... When the data is found corrupted, a rollback to previous restore point would happen, causing a lag. And even when the file is uploaded, the corrupted data would reside in the db until it is detected by corruption check and restored to previous point... that would also affect reporting....

upvoted 9 times

D_Duke

4 years, 5 months ago

Although I've given you a thumb as I believe in real world your words make perfect sense, I must say that the question seems to be tricky as it states that the 'upload and corruption check shouldn't impact reporting', regardless of the restoration to a previous point. That way the answer is correct.

upvoted 4 times

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cmihai

Highly Voted 4 years, 9 months ago

why not ingest into staging layer, perform validations and decide whether to load into DWH?

upvoted 9 times

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syu31svc

Most Recent 4 years, 5 months ago

https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/backup-and-restore#user-defined-restore-points: "This feature enables you to manually trigger snapshots to create restore points of your data warehouse before and after large modifications. This capability ensures that restore points are logically consistent, which provides additional data protection in case of any workload interruptions or user errors for quick recovery time" Answer is correct

upvoted 9 times

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Exam DP-201 topic 4 question 17 discussion

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Ash1602

D_Duke

cmihai

syu31svc

SY0-701