Confluent CCDAK Exam - Topic 2 Question 76 Discussion

Actual exam question for Confluent's CCDAK exam

Question #: 76
Topic #: 2

[All CCDAK Questions]

Select the Kafka Streams joins that are always windowed joins.

AKStream-KStream join

BKTable-KTable join

CKStream-GlobalKTable

DKStream-KTable join

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Suggested Answer: D

min.insync.replicas does not impact producers when acks=1 (only when acks=all)

by Nicolette at Mar 22, 2025, 03:54 PM

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Ivory

7 months ago

I thought all joins were windowed in Kafka Streams!

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Percy

7 months ago

Wait, are you sure about KStream-GlobalKTable?

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Shawna

7 months ago

Totally agree, that’s a key point!

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Shonda

7 months ago

KTable-KTable join is not windowed, right?

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Alesia

8 months ago

KStream-KStream join is always windowed.

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Mitsue

8 months ago

I definitely remember that KStream-KTable joins can be windowed, but I’m confused about the others.

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Nickie

8 months ago

I feel like KStream-GlobalKTable might be windowed, but I can't recall the details.

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Juliana

8 months ago

I remember practicing a question about KTable-KTable joins, and I think those are not windowed.

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Vi

9 months ago

I think KStream-KStream joins are usually windowed, but I'm not sure if that's the only one.

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Kenneth

9 months ago

I've got this! The Kafka Streams joins that are always windowed are KStream-KStream and KTable-KTable. The other two options, KStream-GlobalKTable and KStream-KTable, are not always windowed.

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Edna

9 months ago

Okay, let me think this through. I know that KStream-KStream joins are always windowed, and KTable-KTable joins are also always windowed. I'm not sure about the other two options, though.

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Christa

9 months ago

Hmm, I'm a bit unsure about this one. I know Kafka Streams has different join types, but I can't quite remember which ones are always windowed.

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Natalya

9 months ago

This looks like a straightforward Kafka Streams question. I'll need to think through the different join types and which ones are always windowed.

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Alonso

1 year ago

I don't know about you guys, but I'm going to have to rewatch the Kafka Streams joins section of the course. These windowed joins are giving me a headache!

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Germaine

1 year ago

D) KStream-KTable join

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Dewitt

1 year ago

D) KStream-KTable join

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Anthony

1 year ago

C) KStream-GlobalKTable

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Armanda

1 year ago

C) KStream-GlobalKTable

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Hollis

1 year ago

B) KTable-KTable join

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Danica

1 year ago

B) KTable-KTable join

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Michal

1 year ago

A) KStream-KStream join

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Rosalyn

1 year ago

A) KStream-KStream join

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Irving

1 year ago

Wait, does that mean I can't just join my KStreams like I would with regular SQL? That's a bummer, man.

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Dominic

1 year ago

Hmm, I think the answer might be A) KStream-KStream join. Wasn't there something about how Kafka Streams handles the time-based semantics of these joins?

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