Exam DP-203 topic 1 question 31 discussion

"Data must remain in the Archive tier for at least 180 days or be subject to an early deletion charge. For example, if a blob is moved to the Archive tier and then deleted or moved to the Hot tier after 45 days, you'll be charged an early deletion fee equivalent to 135 (180 minus 45) days of storing that blob in the Archive tier." <- from the sourced link. This explains why we have to use two different access tiers rather than both as archive.

The answers are correct. Data must remain in the Archive tier for at least 180 days or be subject to an early deletion charge. For example, if a blob is moved to the Archive tier and then deleted or moved to the Hot tier after 45 days, you'll be charged an early deletion fee equivalent to 135 (180 minus 45) days of storing that blob in the Archive tier. A blob in the Cool tier in a general-purpose v2 accounts is subject to an early deletion penalty if it is deleted or moved to a different tier before 30 days has elapsed. This charge is prorated. For example, if a blob is moved to the Cool tier and then deleted after 21 days, you'll be charged an early deletion fee equivalent to 9 (30 minus 21) days of storing that blob in the Cool tier. https://docs.microsoft.com/en-us/azure/storage/blobs/access-tiers-overview

configuring a trigger in a pipeline to delete logs when they reach their expiration date is a valid approach to automatically manage log retention in Azure.

Correct answers

correct

Given answer is correct.

The answers are correct

Infrastructure: archive access tier (and pay penalty for early deletion) / application: archive access tier ; Azure Blob storage lifecycle management rules

as per microsoft price lists: https://azure.microsoft.com/en-us/pricing/details/storage/blobs/ to store 50 terabytes in cool storage is around 500 usd/month to store 50 terabytes in archive storage is around 50 usd/month the retention for infrastructure logs is 60 days; files must remain in archive for minimum of 180 otherwise early delete penalty is to be paid; oki doki, 180 days minus 60 days, is 120 days; so around 4 month; 4*50 usd = 200 usd; its still WAY cheaper than cool storage; and the logs will not be accessed during retention (and even if they are , in archive they can be also retrieved, who cares if it takes hours); id go for archive for both

As per my calculations of storing the data in both the tiers and early deletion penalty, the archive storage (for both) is much cheaper than cool tier and archive tier. Assumption is that the data is not accessed from archive tier. The reference link for calculations : https://azure.microsoft.com/en-us/pricing/details/storage/blobs/

Given Answers are correct

While I understand the reason for such answer, I still have doubts. If we think about costs of storage then answer will be different. E.g. (west europe region, all costs for data retrevial are removed) Cool storage for 1 month for 1TB costs 11.10 Eur for 1 month (that is 11,10x6=66,6 for 180 days) and archive storage costs 3,41 Eur per month (that is 3,41x6=20,46 Eur for 6 months). Therefore Archive tear is cheeper even you need to keep the data for 180 days instead of 30. I would go for Archive tier in both cases.

given answer is correct

I think that infrastructure logs should be Cool tier due to the 60 days retention period. At the Archive tier they will be early deletion charge (they should remain at least 180 days in Archive), as mentioned in the answer's provided link.

The question says "You do not expect that the logs will be accessed during the retention periods" - so there is no reason to keep any of them as Cool, so the correct answer should be to put them both in Archive

But the question says 360 days and 60 days for the 2 logs...whereas archive tier could store only upto 180 days .Also the cool tier has lesser storage cost /- hour as compared to archive tier.So should'nt the answer be cool tier for both?

Answers are correct