Confluent CCDAK Exam - Topic 4 Question 63 Discussion

Actual exam question for Confluent's CCDAK exam

Question #: 63
Topic #: 4

You have a Kafka cluster and all the topics have a replication factor of 3. One intern at your company stopped a broker, and accidentally deleted all the data of that broker on the disk. What will happen if the broker is restarted?

AThe broker will start, and other topics will also be deleted as the broker data on the disk got deleted

BThe broker will start, and won't be online until all the data it needs to have is replicated from other leaders

CThe broker will crash

DThe broker will start, and won't have any data. If the broker comes leader, we have a data loss

Show Suggested Answer

Suggested Answer: C

Kafka Connect Sink is used to export data from Kafka to external databases and Kafka Connect Source is used to import from external databases into Kafka.

by Eun at Sep 11, 2024, 07:10 PM

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Sage

6 months ago

Nah, I don't think it will crash, that's not how Kafka operates.

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Kaitlyn

6 months ago

Definitely option B, that's how replication works!

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Ula

6 months ago

Wait, so if it becomes a leader, we lose data? That's wild!

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Rory

7 months ago

I think it will just replicate the missing data from leaders.

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Emerson

7 months ago

The broker will start without data, but it won't crash.

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Hana

7 months ago

I believe the broker will start without data, but I’m not clear on whether it will crash or just operate in a degraded state.

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Yuette

7 months ago

I'm a bit confused about this one. I feel like the broker should just start up, but I can't remember if it will lead to data loss if it becomes the leader.

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Pearly

7 months ago

I remember practicing a similar question, and I think the broker will start but won't be fully online until it gets the data replicated from the other brokers.

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Carisa

8 months ago

I think if the broker is restarted after data deletion, it won't have any data, but I'm not sure if it will crash or just start without it.

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Zachary

8 months ago

Ah, I see. The broker will start, but it won't be online until it has replicated all the data it needs from the other leaders. That makes sense, given the replication factor. I'm feeling pretty confident about this one.

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Maia

8 months ago

Wait, I'm a bit confused. If the data was deleted, won't that cause issues when the broker comes back online? I'm not sure if it will just start replicating or if there could be some data loss.

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Maryann

8 months ago

Okay, let's see. If the broker's data was deleted, it should be able to recover by replicating from the other brokers, right? I'm pretty sure that's how Kafka handles this scenario.

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Adelle

8 months ago

Hmm, this is a tricky one. I'll need to think carefully about the Kafka replication process and how the broker handles data loss.

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Jose

8 months ago

I think the key here is the replication factor of 3. Since the data is replicated across multiple brokers, the broker should be able to recover the data when it restarts. But I'll need to double-check the Kafka documentation to be sure.

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Lewis

8 months ago

Okay, let's see. The first statement about temporarily writing and retrieving state data sounds correct. The second one about caching impacting scalability also seems true. I'm a bit unsure about the third and fourth statements, though.

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Buddy

8 months ago

Hmm, I'm not 100% sure about this. Let me quickly review my notes on SAML authentication to make sure I'm on the right track.

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Margurite

1 year ago

Oh boy, I can just picture the intern panicking and frantically hitting the restart button. 'Please don't crash, please don't crash!' Gotta keep that Kafka cluster healthy, folks!

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Buddy

11 months ago

C) The broker will crash

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Tawanna

12 months ago

B) The broker will start, and won't be online until all the data it needs to have is replicated from other leaders

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Sean

12 months ago

A) The broker will start, and other topics will also be deleted as the broker data on the disk got deleted

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Billy

1 year ago

Hmm, I'm going with B. As long as the replication factor is 3, the other brokers should have the data covered. Though I bet the intern's getting an earful for that little incident.

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Paulina

1 year ago

C, the broker will crash. I mean, come on, deleting all the data? That's a surefire way to make a broker go down in flames. Literally.

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Kimbery

1 year ago

D! The broker will start without any data, and if it becomes a leader, we'll have data loss. Ouch, that's a tough situation. Gotta be extra careful with those brokers.

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Nina

12 months ago

Oh no, that sounds risky. Hopefully, the replication process happens smoothly and we don't lose any important data.

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Cyndy

12 months ago

B) The broker will start, and won't be online until all the data it needs to have is replicated from other leaders

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Tamar

1 year ago

D! The broker will start without any data, and if it becomes a leader, we'll have data loss. Ouch, that's a tough situation. Gotta be extra careful with those brokers.

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Samira

1 year ago

I think the correct answer is B. The broker will start, but it won't be online until all the data it needs is replicated from the other leaders. Losing a broker is never good, but at least the data is safe.

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