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Confluent CCDAK Exam - Topic 1 Question 8 Discussion

A topic has three replicas and you set min.insync.replicas to 2. If two out of three replicas are not available, what happens when a produce request with acks=all is sent to broker?
A) NotEnoughReplicasException will be returned
B) Produce request is honored with single in-sync replica
C) Produce request will block till one of the two unavailable partition is available again.

Confluent CCDAK Exam - Topic 1 Question 8 Discussion

Actual exam question for Confluent's CCDAK exam
Question #: 8
Topic #: 1
[All CCDAK Questions]

A topic has three replicas and you set min.insync.replicas to 2. If two out of three replicas are not available, what happens when a produce request with acks=all is sent to broker?

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Suggested Answer: A

With this configuration, a single in-sync replica becomes read-only. Produce request will receive NotEnoughReplicasException.


by Lawrence at May 07, 2022, 07:20 PM

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Paola
8 months ago
C is interesting, but I don't think it blocks like that.
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Lashawn
9 months ago
B seems off, acks=all needs more replicas.
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Shawn
9 months ago
Wait, is it really that strict? Sounds harsh!
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Stacey
9 months ago
Totally agree with A, can't have enough replicas!
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Louvenia
9 months ago
A is correct, NotEnoughReplicasException will be returned.
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Kenneth
9 months ago
I'm pretty certain that if two replicas are unavailable, we can't satisfy the min.insync.replicas requirement, so it should return an exception.
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Lavonna
9 months ago
I feel like the request would still go through with just one in-sync replica, but that doesn't seem right with acks=all.
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Vicki
9 months ago
I remember practicing a similar question, and I believe the produce request would block until one of the replicas is back online.
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Tracey
9 months ago
I think if two replicas are down, we might get a NotEnoughReplicasException, but I'm not entirely sure.
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Shaquana
9 months ago
I'm not totally sure about this one. The options seem a bit confusing to me.
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Steffanie
9 months ago
This looks like a straightforward multiple-choice question. I'll carefully read through the options and the provided information to determine the correct answer.
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Johanna
9 months ago
Okay, let's see. Scoping to the image names makes sense, as that would target the specific containers we want. Namespaces could work too, but that might be too broad. I'll go with option A.
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Lai
10 months ago
Hmm, I'm a bit confused by this question. There are a few different options presented, and I'm not sure which one would be the most appropriate. I'll need to think through the implications of each approach carefully.
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