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If a database exception occurs in a PolarDB cluster because important data is deleted by mistake, how i can data be restored?
Suggested Answer: A
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28 comments · newest first
SO
Son
6 days ago
Practice makes perfect!
RO
Rodrigo
11 days ago
I just hope I remember this in the exam.
LU
Lucina
16 days ago
It’s essential for recovery.
TI
Tijuana
22 days ago
I feel unsure about the redo log part.
KE
Keneth
27 days ago
A covers both backup and redo log.
RO
Rodrigo
1 month ago
But Level-1 might not cover everything.
LU
Lucina
1 month ago
I prefer B. Redo log is crucial.
SO
Son
1 month ago
Level-2 backup is more comprehensive.
TI
Tijuana
2 months ago
Why A?
SO
Son
2 months ago
I think A is the best choice.
RO
Rodrigo
2 months ago
This question is tricky.
DE
Deja
2 months ago
D is too risky. Level-1 alone won't cut it.
AU
Audry
2 months ago
C seems too limited. Level-2 is the way to go.
TE
Tegan
2 months ago
I like A too. Redo log is essential for recovery.
KI
Kiera
3 months ago
A feels right. Can't risk losing data permanently.
JE
Jesusita
3 months ago
But B lacks the depth of A. Level-2 is safer.
DE
Deeanna
3 months ago
I'm leaning towards B. Level-1 backup is still useful.
KA
Kate
3 months ago
I agree, A makes sense. Redo log helps too.
JU
Jutta
3 months ago
I think A is the best choice. Level-2 backup is crucial.
ST
Stanton
3 months ago
Totally agree with A, it's the safest choice!
DO
Dolores
4 months ago
Wait, are we sure about the redo log part?
GE
Gearldine
4 months ago
C) Level-2 backup alone isn't enough, right?
ST
Stephaine
4 months ago
I think B) Level 1 backup + Redo log could work too.
AN
Andra
4 months ago
A) Level-2 backup + Redo log is the best option.
LA
Lashon
4 months ago
I vaguely recall that Level-1 backups are quicker but less reliable for restoring important data. Maybe that's why Level-2 is the better choice here?
TA
Tamar
6 months ago
I'm a bit confused about the redo log's role in this scenario. Does it really matter if we have Level-1 or Level-2 backup?
BR
Brittni
6 months ago
I remember practicing a similar question where we had to choose between Level-1 and Level-2 backups. I feel like Level-2 is usually the safer option.
JU
Juan
6 months ago
I think we discussed something about Level-2 backups being more comprehensive, but I'm not entirely sure how the redo log fits in.