Confluent CCDAK Exam - Topic 4 Question 84 Discussion

Actual exam question for Confluent's CCDAK exam

Question #: 84
Topic #: 4

[All CCDAK Questions]

To prevent network-induced duplicates when producing to Kafka, I should use

Amax.in.flight.requests.per.connection=1

Benable.idempotence=true

Cretries=200000

Dbatch.size=1

Show Suggested Answer

Suggested Answer: B

Producer idempotence helps prevent the network introduced duplicates. More details herehttps://cwiki.apache.org/confluence/display/KAFKA/Idempotent+Producer

by Ronald at Nov 23, 2025, 09:11 PM

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Matthew

3 months ago

Overall, B is the safest option for preventing duplicates.

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Lyda

3 months ago

D seems too limiting. Batch size of 1 isn't efficient.

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Omega

3 months ago

I feel like C is overkill. 200,000 retries?

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Detra

3 months ago

A could work too, but it might slow things down.

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Shantay

4 months ago

I agree, B makes sense. Idempotence is key.

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Bettyann

4 months ago

I’m not sure about D, batch.size=1 feels limiting.

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Wendell

4 months ago

Totally agree with B, it’s essential for avoiding duplicates.

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Terina

5 months ago

Wait, retries=200000? That seems excessive!

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Leota

5 months ago

A) max.in.flight.requests.per.connection=1 is also a good choice.

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Krissy

5 months ago

B) enable.idempotence=true, because who wants to deal with network-induced duplicates? Not this guy!

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Goldie

5 months ago

I'd go with B as well. Retries and batch size won't help with duplicate prevention.

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Jose

5 months ago

Definitely B. Enabling idempotence is the way to go to prevent those pesky network-induced duplicates.

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Malissa

5 months ago

Batch size seems more about performance than duplicates, so I doubt D is correct. I’m really torn between A and B!

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Dalene

6 months ago

I feel like retries could help, but I don't think it's the right answer for preventing duplicates. So, I would lean towards B as well.

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Tammara

6 months ago

I'm not entirely sure, but I remember something about max in-flight requests affecting duplicates. Maybe A is relevant?

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Corazon

6 months ago

I think enabling idempotence is the key here, so I would go with B. It sounds familiar from our practice sessions.

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Franchesca

6 months ago

B seems like the most straightforward solution. Enabling idempotence should do the trick.

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Jamie

6 months ago

I'm a bit confused on the difference between these options. I'll need to review the docs again.

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Hobert

6 months ago

I'm pretty sure the answer is B. Enabling idempotence is the way to go here.

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Felix

7 months ago

I think B is the best choice. It ensures no duplicates.

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Carmela

7 months ago

B) enable.idempotence=true is the way to go!

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Hildegarde

7 months ago

B) enable.idempotence=true is the correct answer.

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Daron

7 months ago

Option B is the way to go. Enabling idempotence is the key to avoiding those annoying duplicates.

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Reuben

8 months ago

Okay, let's see. Preventing duplicates is key, so I'm leaning towards B or D.

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Tamar

8 months ago

Hmm, this one's tricky. I'll need to think through the Kafka producer configs carefully.

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Audry

2 months ago

I agree, let's go with option B!

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Milly

2 months ago

That could help too, but idempotence is more reliable.

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Trinidad

3 months ago

But what about max in flight requests?

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Chara

3 months ago

Definitely! It prevents duplicates effectively.

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Danica

7 months ago

I think enabling idempotence is key here.

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