Google Professional Cloud Database Engineer Exam - Topic 8 Question 35 Discussion

Actual exam question for Google's Professional Cloud Database Engineer exam

Question #: 35
Topic #: 8

[All Professional Cloud Database Engineer Questions]

You released a popular mobile game and are using a 50 TB Cloud Spanner instance to store game data in a PITR-enabled production environment. When you analyzed the game statistics, you realized that some players are exploiting a loophole to gather more points to get on the leaderboard. Another DBA accidentally ran an emergency bugfix script that corrupted some of the data in the production environment. You need to determine the extent of the data corruption and restore the production environment. What should you do? (Choose two.)

AIf the corruption is significant, use backup and restore, and specify a recovery timestamp.

BIf the corruption is significant, perform a stale read and specify a recovery timestamp. Write the results back.

CIf the corruption is significant, use import and export.

DIf the corruption is insignificant, use backup and restore, and specify a recovery timestamp.

EIf the corruption is insignificant, perform a stale read and specify a recovery timestamp. Write the results back.

Show Suggested Answer

Suggested Answer: D

BMS is the only Google database service which supports Oracle aside from GCVE. It allows you to use all native Oracle features including RAC. Since GCVE isn't mentioned, it has to be D - Bare Metal Solution.

by Clarence at Jun 18, 2024, 03:30 AM

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Erasmo

3 months ago

D seems pointless if the corruption is significant, no?

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Noah

3 months ago

C is a bit overkill, right? Just stick to A.

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Blondell

3 months ago

Wait, can you really use stale reads for this? Sounds risky!

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Natalie

4 months ago

I think B could work too, but not sure if it's the best option.

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Emogene

4 months ago

Definitely A, backup and restore is the way to go!

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Audra

4 months ago

I feel like if the corruption is insignificant, a stale read might be the way to go, but I’m not entirely confident about the recovery timestamp part.

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Thad

4 months ago

I practiced a similar question where we had to decide between backup and restore or import/export, but I can't recall the specifics for this scenario.

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Susy

4 months ago

I think a stale read could be useful too, but I’m a bit confused about when to use it versus backup and restore.

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Adelle

5 months ago

I remember we discussed using backup and restore for significant corruption, but I'm not sure if that's the only option.

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Dalene

5 months ago

The import and export option could be worth considering, but I'm not sure how that would work with a 50 TB dataset. I'll need to look into the specifics of that approach.

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Portia

5 months ago

I'm leaning towards the backup and restore approach as well, especially if the corruption is significant. That seems like the most reliable way to get the production environment back to a stable state.

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Lettie

5 months ago

I'm a bit confused about the stale read option. Does that mean we can read the data without modifying it? I'll need to research that a bit more.

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Terrilyn

5 months ago

Okay, let's see. If the corruption is significant, I think using backup and restore with a recovery timestamp would be the safest option. That way, we can restore the data to a known good state.

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Helga

5 months ago

Hmm, this seems like a tricky one. I'll need to carefully analyze the extent of the data corruption before deciding on the best approach.

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Minna

5 months ago

Okay, let me think this through. I think the best question to ask is option B - "Will the FlexCard only be used for testing?" That would help me understand the context and impact of the changes.

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Corazon

5 months ago

I thought Network might have some relevant information, but I feel like Alarms is more likely to have the failure details based on past exercises.

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Dong

10 months ago

Ah, the age-old question of 'to restore or not to restore?' If the corruption is insignificant, I'd definitely go with option D. Backup and restore with a recovery timestamp is like a spa day for your data. But if it's significant, A or B might be the way to go. Although, I've got to admit, the 'stale read and write back' move sounds kind of like a dance move from the '80s.

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Lemuel

8 months ago

Yeah, option A seems like the way to go for significant corruption. We can't afford to lose any important game data.

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Mona

8 months ago

I agree, option A sounds like the most reliable solution in this situation. We need to make sure we restore the data accurately.

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Cherrie

8 months ago

I think we should go with option A if the corruption is significant. Backup and restore with a recovery timestamp seems like the safest bet.

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Felicitas

10 months ago

This is where the real fun begins! If the corruption is significant, I'd probably go with B. Stale read and write back, baby! It's like playing 'tag' with the data, but with a recovery timestamp as the ultimate 'get out of jail free' card. As for the 'import and export' option, that's just asking for trouble. It's like trying to juggle flaming chainsaws while riding a unicycle.

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Ligia

9 months ago

Definitely, we need to be careful with our next move to restore the production environment without causing more issues.

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Kaitlyn

9 months ago

Yeah, it's like making a calculated risk to ensure the data integrity is maintained. Import and export sounds too risky.

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Quentin

9 months ago

I agree, using a stale read and write back seems like the best option in this situation. It's like a strategic move in a game.

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Cherry

10 months ago

Well, well, well, looks like we've got a good ol' fashioned data disaster on our hands. If it's a significant corruption, I'd probably go with option A. Backup and restore is the classic move, and who doesn't love a good recovery timestamp? It's like a time machine for your data!

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Kate

8 months ago

Player1: Let's get this data disaster sorted out quickly.

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Glen

8 months ago

Player3: Definitely, we need to make sure we can roll back to a safe point.

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Youlanda

9 months ago

Player2: Agreed, it's a classic move for significant corruption.

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Dana

9 months ago

Player1: Yeah, backup and restore with a recovery timestamp sounds like the way to go.

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Keith

10 months ago

Okay, let's think this through. If the corruption is insignificant, D seems like the way to go. But if it's significant, then A or B might be the better options. I'm just hoping I don't have to do the 'import and export' dance. That's like playing 'musical chairs' with the data.

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Junita

9 months ago

B) If the corruption is significant, perform a stale read and specify a recovery timestamp. Write the results back.

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Lauryn

10 months ago

A) If the corruption is significant, use backup and restore, and specify a recovery timestamp.

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Vashti

11 months ago

Hmm, this is a tricky one. Let's see, if the corruption is significant, I'd go with option A or B. Backup and restore with a recovery timestamp seems like the safest bet. Although, a stale read might be faster if I'm feeling adventurous.

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