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MongoDB C100DBA Exam - Topic 1 Question 89 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 89
Topic #: 1
[All C100DBA Questions]

Which of the following is true about sharding?

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Suggested Answer: A

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Kaitlyn
3 months ago
Wait, so we can't change the shard key at all? That seems odd.
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Ruthann
3 months ago
I disagree, sorting still works in sharded setups!
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Serina
3 months ago
Sharding is definitely enabled at the database level.
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Chauncey
4 months ago
I thought you could change the shard key if needed?
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Dean
4 months ago
A sharded key does create an index, that's true!
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Melissa
4 months ago
I believe sharding is enabled at the database level, but I need to double-check if that’s the same for all databases.
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Ceola
4 months ago
I’m pretty sure a sharded environment can still sort documents, but I might be mixing it up with how queries work across shards.
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Bronwyn
4 months ago
I remember something about shard keys being unchangeable once set up, so I’m leaning towards option B.
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Corrinne
5 months ago
I think sharding creates an index automatically, but I’m not entirely sure if that’s always the case.
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Tatum
5 months ago
I'm not entirely sure about D - is sharding really enabled at the database level? I'll need to review my notes on the sharding architecture.
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Joanne
5 months ago
A seems like the most straightforward answer. Creating a shard key automatically creates an index, that makes sense to me.
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Johana
5 months ago
I'm a bit confused on the sorting functionality part. Does that mean we can't sort data in a sharded environment? I'll have to double-check that.
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Terrilyn
5 months ago
Okay, I've got this. I'm pretty sure the answer is B - we can't change the shard key once it's set up.
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Tiara
5 months ago
Hmm, this is a tricky one. I'll need to think through the key points about sharding to figure this out.
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Lynelle
5 months ago
Hmm, this seems like a tricky one. I'll need to think it through carefully.
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Curt
5 months ago
Hmm, I'm a bit unsure about this one. The question doesn't provide a lot of context, and I could see arguments for both B2B and B2C. I'll need to think it through carefully before answering.
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Asha
5 months ago
This question seems straightforward, but I want to make sure I understand the key factors that could negatively impact log analysis for a multinational organization.
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Glory
10 months ago
Sharding, schmarding. I'm just going to shard some cheese and call it a day.
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Lawrence
8 months ago
C) A sharded environment does not support sorting functionality since the documents lie on various mongod instances
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Loise
8 months ago
B) We cannot change a shard key directly/automatically once it is set up
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Theola
9 months ago
A) Creating a sharded key automatically creates an index on the collection using that key
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Roselle
10 months ago
Sharding at the database level, huh? I guess that means I can shard my entire Netflix account.
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Hyun
9 months ago
C) A sharded environment does not support sorting functionality since the documents lie on various mongod instances
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Dana
9 months ago
B) We cannot change a shard key directly/automatically once it is set up
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Tamala
9 months ago
A) Creating a sharded key automatically creates an index on the collection using that key
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Charlie
10 months ago
No sorting in a sharded environment? Seriously? That's like having a car with no steering wheel.
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Barabara
9 months ago
D) Sharding is enabled at the database level
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Brandon
9 months ago
No, it's true. Sharding can make sorting more complex.
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Darci
9 months ago
C) A sharded environment does not support sorting functionality since the documents lie on various mongod instances
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Tiera
9 months ago
B) We cannot change a shard key directly/automatically once it is set up
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Alverta
10 months ago
A) Creating a sharded key automatically creates an index on the collection using that key
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Rex
10 months ago
Changing a shard key? Yeah, right. That's like trying to change your social security number - not happening.
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Dana
11 months ago
Hmm, that makes sense too. I guess we need to review the sharding concept more thoroughly before the exam.
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Maryann
11 months ago
A sharded key is automatically indexed? That's news to me. Sounds like a sly way to get me to choose A.
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Kallie
10 months ago
User 4: C) A sharded environment does not support sorting functionality since the documents lie on various mongod instances
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Emmett
10 months ago
User 2: Yeah, it does seem like a tricky question. But I think the answer is actually B) We cannot change a shard key directly/automatically once it is set up.
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Jaleesa
10 months ago
User 1: A sharded key is automatically indexed? That's news to me. Sounds like a sly way to get me to choose A.
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Janna
10 months ago
User 3: A sharded key is automatically indexed? That's news to me. Sounds like a sly way to get me to choose A.
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Elsa
10 months ago
User 2: B) We cannot change a shard key directly/automatically once it is set up
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Princess
10 months ago
User 1: A) Creating a sharded key automatically creates an index on the collection using that key
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Tandra
11 months ago
I disagree, I believe the correct answer is A) Creating a sharded key automatically creates an index on the collection using that key.
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Dana
11 months ago
I think the answer is B) We cannot change a shard key directly/automatically once it is set up.
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