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Confluent CCDAK Exam - Topic 1 Question 9 Discussion

In Avro, removing or adding a field that has a default is a __ schema evolution
A) full
B) backward
C) breaking
D) forward

Confluent CCDAK Exam - Topic 1 Question 9 Discussion

Actual exam question for Confluent's CCDAK exam
Question #: 9
Topic #: 1
[All CCDAK Questions]

In Avro, removing or adding a field that has a default is a __ schema evolution

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Suggested Answer: A

Clients with new schema will be able to read records saved with old schema and clients with old schema will be able to read records saved with new schema.


by Carmela at May 06, 2022, 11:15 PM

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Magdalene
8 months ago
Adding/removing defaults is tricky, but it’s still backward.
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Fannie
9 months ago
Yeah, definitely backward. No doubt about it!
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Ocie
9 months ago
Wait, is it really backward? I thought it was forward.
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Dalene
9 months ago
Totally agree, default fields make it backward compatible!
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Beckie
9 months ago
It's a backward schema evolution.
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Timmy
9 months ago
I vaguely recall that removing a field is usually breaking, but adding one with a default might not be. This is tricky!
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Celestina
9 months ago
I feel like this might be a forward evolution since defaults can help with new readers, but I could be mixing it up with another concept.
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Lenna
9 months ago
I remember practicing a question about schema evolution, and I think it was related to how defaults help maintain compatibility.
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Adrianna
9 months ago
I think adding or removing a field with a default is considered backward compatibility, but I'm not entirely sure.
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Tuyet
9 months ago
I'm a bit confused by this question. I know the CiscoCertUtil tool is used for certificate-related tasks, but I'm not sure of the specific functions. I'll have to guess and hope I get at least one right.
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Dominga
9 months ago
I went over a similar question in practice where the focus was on avoiding unnecessary transformations too, but I feel like there's more to consider with the service relationships in this case.
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Truman
10 months ago
I'm a bit confused by this question. Is client access the same as user access or are they different? I'll need to review my notes to make sure I understand the concept properly.
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Ronnie
10 months ago
Hmm, I'm a bit unsure about the difference between REST and Query requests. I'll need to think this through carefully.
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