Confluent Exam CCDAK Topic 1 Question 46 Discussion

Actual exam question for Confluent's CCDAK exam

Question #: 46
Topic #: 1

[All CCDAK Questions]

In Avro, adding a field to a record without default is a __ schema evolution

Aforward

Bbackward

Cfull

Dbreaking

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 Josephine at Dec 22, 2023, 02:43 PM

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Nina

1 months ago

Adding a field without a default? Sounds like a great way to 'Avro-id' compatibility issues. *ba dum tss*

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Ellsworth

1 months ago

Wait, you mean Avro has schemas? I thought it was just a fancy way to say 'Avocado'! *scratches head*

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Tesha

1 months ago

D all the way, baby! Breaking changes are my middle name. *flexes biceps*

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Pearlene

14 days ago

B) backward

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Amie

21 days ago

A) forward

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Devorah

1 months ago

Easy peasy, it's C. Full schema evolution, right? Who needs defaults anyway, am I right? *winks*

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Leota

5 days ago

Exactly, defaults are overrated. *winks*

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Tina

8 days ago

I agree, who needs defaults anyway?

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Sabrina

14 days ago

Yes, you're right! It's C. Full schema evolution.

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Lashawna

2 months ago

Hmm, I'm not sure about this one. Might be B or D. Gotta double-check the Avro docs on schema evolution.

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Jacquelyne

17 days ago

Let's check the Avro docs to be sure.

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Judy

21 days ago

I believe it's D) breaking.

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Kelvin

1 months ago

I think it's B) backward.

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Wei

2 months ago

I think the answer is D. Adding a field without a default is definitely a breaking change in Avro schema evolution.

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Edward

2 months ago

I'm not sure, but I think it's either A) forward or C) full.

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Esteban

2 months ago

I agree with Shad, adding a field without default is a forward schema evolution.

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Shad

2 months ago

I think the answer is A) forward.

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Hubert

2 months ago

That makes sense. I agree with you.

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Dahlia

3 months ago

I believe the answer is D) breaking because adding a field without default can break compatibility with existing data.

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Hubert

3 months ago

What do you think the answer is for this question?

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