Confluent Exam CCDAK Topic 3 Question 78 Discussion

Actual exam question for Confluent's CCDAK exam

Question #: 78
Topic #: 3

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 Teddy at May 02, 2025, 10:44 PM

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Florencia

18 hours ago

Alright, I think I've got it. Brokers 0 and 1 are on rack A, so they're not eligible. Brokers 2 and 3 are on rack B, and we already have a replica on broker 2. That leaves brokers 4, 5, and 3 as potential options for the last replica. I'll go with C) 2 and F) 3.

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Alex

5 days ago

Okay, let's think this through. The topic has 10 partitions, and the replication factor is 3. So, we need to find two brokers that can host the last replica for partition 0, given that the leader is on broker 4 and the first replica is on broker 2. Hmm, this is a tricky one.

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