Confluent CCDAK Exam - Topic 4 Question 89 Discussion

Actual exam question for Confluent's CCDAK exam

Question #: 89
Topic #: 4

Suppose you have 6 brokers and you decide to create a topic with 10 partitions and a replication factor of 3. The brokers 0 and 1 are on rack A, the brokers 2 and 3 are on rack B, and the brokers 4 and 5 are on rack C. If the leader for partition 0 is on broker 4, and the first replica is on broker 2, which broker can host the last replica? (select two)

Show Suggested Answer

Suggested Answer: B, E

When you create a new topic, partitions replicas are spreads across racks to maintain availability. Hence, the Rack A, which currently does not hold the topic partition, will be selected for the last replica

by Brice at Mar 05, 2026, 07:31 PM

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Telma

2 hours ago

I feel confused about the replication factor. Is it really necessary?

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Janey

5 days ago

I think the answer is D and F. They are in different racks.

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Reiko

10 days ago

So, is it really true that we can't have replicas on the same rack?

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Gilma

16 days ago

I think it has to be on a different rack, so D and F make sense.

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Lang

2 months ago

Wait, why can't it be on broker 1?

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Dawne

2 months ago

Definitely options D and F!

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Dana

2 months ago

The last replica can't be on the same rack as the leader or first replica.

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Adela

3 months ago

I agree, it has to be 5 or 3 for sure!

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Willie

3 months ago

Wait, why can't it be on broker 1?

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Talia

3 months ago

I think it could be broker 5 or 3.

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Gladys

3 months ago

Definitely, it has to be on rack C or A.

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Enola

3 months ago

The last replica can't be on the same rack as the leader.

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Rodrigo

3 months ago

I’m confused about the options. Can’t the last replica be on broker 3 too? It seems like it fits the criteria.

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Tracey

4 months ago

I practiced a similar question, and I think the last replica could be on broker 5 since it's on a different rack from both the leader and the first replica.

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Luis

4 months ago

I'm not entirely sure, but I remember something about balancing replicas across racks to avoid single points of failure. Maybe brokers 1 or 5?

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Apolonia

4 months ago

I think the last replica needs to be on a different rack from the leader and the first replica, so it can't be on broker 2.

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