Confluent Exam CCDAK Topic 1 Question 51 Discussion

Actual exam question for Confluent's Certified Developer for Apache Kafka exam

Question #: 51
Topic #: 1

[All Certified Developer for Apache Kafka Questions]

In Avro, adding an element to an enum without a default is a __ schema evolution

Abreaking

Bfull

Cbackward

Dforward

Show Suggested Answer

Suggested Answer: A

Since Confluent 5.4.0, Avro 1.9.1 is used. Since default value was added to enum complex type , the schema resolution changed from:

(<1.9.1) if both are enums:** if the writer's symbol is not present in the reader's enum, then an error is signalled. **(>=1.9.1) if both are enums:

if the writer's symbol is not present in the reader's enum and the reader has a default value, then that value is used, otherwise an error is signalled.

by Cheryl at Apr 09, 2024, 07:07 PM

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Tommy

11 days ago

Wait, wait, wait...is this a trick question? I feel like there's gotta be a catch here. Maybe the answer is 'D) forward' because it's adding new functionality, even though it's technically a breaking change. Ugh, Avro schemas are the bane of my existence!

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Moon

13 days ago

Hah, classic Avro tricks! You know, I heard the exam writers have a secret club where they come up with these mind-bending questions. They probably have a dart board with all the answer options on it.

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Annelle

14 days ago

I'm not too sure about this one. Is it 'backward' because it's compatible with older clients, or 'forward' because it's adding new functionality? Decisions, decisions...

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Deonna

15 days ago

Okay, let's think this through. Adding an element to an enum without a default...that's gotta be a breaking change, right? I mean, you're introducing a new value that old clients won't know how to handle.

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Lyda

17 days ago

Hmm, this one's tricky. I feel like I should know the answer, but my brain's just not clicking right now. Maybe I need to chug another cup of coffee before the exam.

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Edda

19 days ago

Ah, the old enum schema evolution conundrum! This is a classic trick question, I tell you. Gotta keep us on our toes, don't they?

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