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Confluent CCDAK Exam - Topic 1 Question 22 Discussion

Actual exam question for Confluent's CCDAK exam
Question #: 22
Topic #: 1
[All CCDAK Questions]

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

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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.


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Sherly
4 months ago
Wait, really? I didn't know that!
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Alecia
4 months ago
Nah, it's definitely forward evolution.
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Rebecka
4 months ago
I thought it was backward compatibility?
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Skye
4 months ago
Totally agree, no default means issues.
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Terrilyn
4 months ago
It's a breaking change for sure.
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Mattie
5 months ago
I feel like this might be a forward evolution, but I can't recall the exact details from my notes.
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Raelene
5 months ago
I remember practicing a question about schema evolution, and I think it was related to backward compatibility.
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Alline
5 months ago
I think adding an element to an enum without a default is considered a breaking change, but I'm not entirely sure.
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Mitzie
5 months ago
I thought adding an enum without a default was a full schema evolution, but now I'm second-guessing myself.
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Haley
5 months ago
This is a good test of my networking knowledge. I know the main dynamic routing protocols like OSPF and BGP, and I'm pretty sure RIP is also supported. I'll double-check the other options, but I feel good about being able to select the right three.
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Destiny
5 months ago
I'm not entirely sure about this one. Removing the user from security groups or teams could also work, but I'm not confident that's the best approach. I'll need to review the options again.
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Norah
5 months ago
Hmm, I'm a bit confused on this one. I know the supply curve slopes upwards, but I can't remember if it's from left to right or right to left. I'll have to think this through carefully.
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