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Alibaba ACA-Operator Exam - Topic 8 Question 84 Discussion

Which of the following engines is NOT supported by PolarDB?
B) MongoDB
A) Oracle
C) MySQLo
D) PostgreSQL

Alibaba ACA-Operator Exam - Topic 8 Question 84 Discussion

Actual exam question for Alibaba's ACA-Operator exam
Question #: 84
Topic #: 8
[All ACA-Operator Questions]

Which of the following engines is NOT supported by PolarDB?

Show Suggested Answer Hide Answer
Suggested Answer: B

https://www.alibabacloud.com/help/doc-detail/58764.htm


by Maurine at Jun 10, 2025, 09:44 PM

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Jesusa
7 months ago
Definitely not Oracle!
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Charlene
7 months ago
I thought it supported all major databases?
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Ciara
8 months ago
Wait, is MySQLo even a real thing?
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Lennie
8 months ago
Yeah, it's MongoDB that's not in the mix.
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Maryann
8 months ago
PolarDB doesn't support MongoDB.
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Sylvia
8 months ago
I definitely recall that PolarDB supports MySQL and PostgreSQL, but I can't remember if MongoDB was included or not.
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Vincent
8 months ago
I feel like I saw something about Oracle not being compatible with PolarDB, but I could be mixing it up with another database.
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Asha
9 months ago
I remember practicing a question about database engines, and I think MongoDB was mentioned as not being supported.
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Anglea
9 months ago
I think PolarDB supports MySQL and PostgreSQL, but I'm not sure about Oracle.
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Val
9 months ago
Easy peasy! PolarDB is a PostgreSQL-compatible database, so it definitely supports PostgreSQL. The other options are all different database engines, so the answer has to be C, MySQLo.
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Miss
9 months ago
Okay, I've got this. PolarDB is an Alibaba Cloud database service that's compatible with PostgreSQL. So the answer has to be C, MySQLo, since that's a different database engine that PolarDB wouldn't support.
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Shaquana
9 months ago
Hmm, I'm a bit confused on this one. I know PolarDB is a PostgreSQL-compatible database, but I'm not sure about the other engine support. I'll have to think this through carefully and review my notes before answering.
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Delila
9 months ago
I'm pretty sure PolarDB supports Oracle, so I'll eliminate that option. MongoDB is a NoSQL database, so that's probably not supported either. I think the answer is C, MySQLo, since PolarDB is a relational database and wouldn't support a non-relational engine like that.
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Frederica
1 year ago
Haha, the answer is definitely B. MongoDB. I mean, who even uses MongoDB with PolarDB? That's like trying to fit a square peg in a round hole.
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Vicky
10 months ago
Haha, the answer is definitely B. MongoDB. I mean, who even uses MongoDB with PolarDB? That's like trying to fit a square peg in a round hole.
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Rodrigo
10 months ago
D) PostgreSQL
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Cherri
10 months ago
C) MySQL
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Celestina
10 months ago
B) MongoDB
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Royal
10 months ago
A) Oracle
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Floyd
10 months ago
Haha, the answer is definitely B. MongoDB. I mean, who even uses MongoDB with PolarDB? That's like trying to fit a square peg in a round hole.
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Casie
10 months ago
D) PostgreSQL
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Glory
10 months ago
C) MySQL
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Zack
11 months ago
B) MongoDB
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Vallie
12 months ago
A) Oracle
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Thurman
1 year ago
Hmm, I think it's gotta be B. MongoDB, right? PolarDB is all about the relational databases, not the NoSQL ones.
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Yun
10 months ago
Exactly, PolarDB focuses on relational databases like MySQL and PostgreSQL.
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Leatha
10 months ago
Yeah, you're right. PolarDB doesn't support MongoDB.
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Pedro
11 months ago
D) PostgreSQL
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Felice
11 months ago
C) MySQL
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Jamal
11 months ago
B) MongoDB
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Amber
11 months ago
A) Oracle
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Doretha
1 year ago
I'm not sure, but I think PolarDB does not support MongoDB because it is a NoSQL database.
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Alisha
1 year ago
I'm pretty sure PolarDB doesn't support MongoDB. That's like mixing apples and oranges!
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Shalon
12 months ago
Reuben: Exactly, mixing in a NoSQL database like MongoDB would be strange.
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Reuben
12 months ago
User 2: Yeah, it's more focused on relational databases like MySQL and PostgreSQL.
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Joni
1 year ago
User 1: I think you're right, PolarDB doesn't support MongoDB.
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Fannie
1 year ago
I disagree, I believe the answer is A) Oracle.
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Doretha
1 year ago
I think the answer is B) MongoDB.
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