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A producer just sent a message to the leader broker for a topic partition. The producer used acks=1 and therefore the data has not yet been replicated to followers. Under which conditions will the consumer see the message?
Suggested Answer: C
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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.
41 comments · newest first
LO
Loren
11 months ago
Acks=1 means immediate visibility, no doubt!
LA
Lawrence
11 months ago
D is interesting, but I think it’s A for sure.
AN
Annamae
11 months ago
Wait, are you sure? I thought it needed to be replicated first.
MI
Miriam
11 months ago
Totally agree, it’s all about the leader broker!
SH
Shawna
12 months ago
Consumer will see the message right away with acks=1.
ME
Melinda
12 months ago
If I recall correctly, the consumer will only see the message when the high watermark advances, which means it’s option D.
CA
Casie
12 months ago
I feel like the consumer should see the message immediately since the leader has acknowledged it, but I could be wrong about that.
MA
Maddie
1 year ago
I think I practiced a similar question where the consumer only sees the message after replication. So, maybe it's option D?
OM
Omega
1 year ago
I remember that with acks=1, the message is considered sent once the leader acknowledges it, but I'm not sure if consumers can see it right away.
DE
Devorah
1 year ago
Whoa, this is a tricky one. I'm not totally sure about the conditions for the consumer seeing the message in this scenario. I'll have to review my Kafka concepts and try to work through the logic step-by-step.
JE
Jerry
1 year ago
Okay, I've got an idea. Since the message hasn't been replicated to the followers yet with acks=1, the consumer will only see it once the high watermark has advanced to include that message. I'm pretty confident that's the right answer.
FR
Franklyn
1 year ago
Hmm, I'm a bit confused on this one. I know acks=1 means the message is only acknowledged after the leader receives it, but I'm not sure how that impacts the consumer seeing the message. I'll have to think it through carefully.
HA
Harrison
1 year ago
This one seems tricky, but I think I can work it out. Let me think through the acks=1 scenario and how that affects when the message is visible to the consumer.
RO
Ronny
1 year ago
I'm pretty confident the answer is B. The question states the data hasn't been replicated to followers yet, so the consumer wouldn't see the message until the replication is done.
PE
Peggie
1 year ago
Okay, let me think this through. The key here is that the producer used acks=1, so the data hasn't been replicated to the followers yet. I'm guessing the consumer would only see the message once the replication is complete, so I'll go with B.
CE
Cecil
1 year ago
Hmm, I'm a bit confused here. If the producer used acks=1, does that mean the message was only written to the leader and not the followers? I'm not sure if the consumer would see it right away or not.
AN
Antonio
1 year ago
This question seems straightforward, I think the answer is B since the producer used acks=1 so the message hasn't been fully replicated yet.
ME
Merissa
1 year ago
Hmm, this seems like a tricky one. I'll need to think it through carefully.
DI
Diane
1 year ago
I feel pretty confident about this one. Based on my understanding of Dynamics 365 Supply Chain Management, the three objects that can be used to streamline the supply schedule form are transfer orders, scheduled Kanban, and production orders. I'll mark those and move on.
CA
Carman
1 year ago
This one seems pretty straightforward. I think I'll go with option C since both statements seem to be true.
KA
Kattie
1 year ago
Option E: The consumer will see the message when the producer finally remembers to hit send on their email.
TO
Toi
1 year ago
A: The consumer will see the message when the high watermark has advanced.
MA
Matthew
1 year ago
B: The consumer will see the message when the message has been fully replicated to all replicas.
YO
Yoko
1 year ago
A: The consumer will see the message right away.
MA
Margarett
1 year ago
Option C is just silly. The produce request won't fail, it will simply wait for replication to complete.
MU
Muriel
1 year ago
I'm going with option D. The consumer will see the message when the high watermark has advanced.
DE
Desmond
1 year ago
I think the produce request will fail and the consumer will never see the message.
VI
Vincent
1 year ago
I'm not sure, maybe when the message has been fully replicated to all replicas?
WI
Willard
1 year ago
I believe the consumer will see the message when the high watermark has advanced.
PA
Paola
1 year ago
I think the consumer will see the message right away.
MO
Mona
1 year ago
Option B seems correct. The consumer will see the message once it has been fully replicated to all replicas.
LA
Lauryn
1 year ago
B: That makes sense, so the consumer won't see the message right away then.
JE
Jesusita
1 year ago
A: The consumer will see the message when the message has been fully replicated to all replicas.
MY
Myra
2 years ago
Option A is incorrect. The consumer won't see the message right away because the message hasn't been replicated yet.
GE
Gerald
1 year ago
B: Got it. Thanks for clarifying!
PA
Paz
1 year ago
A: That's correct. It needs to be fully replicated to all replicas first.
AL
Alana
1 year ago
B: So, the consumer won't see the message right away?
FI
Fidelia
1 year ago
A: The consumer will see the message when the high watermark has advanced.
KI
King
2 years ago
I'm not sure, but I think the consumer will never see the message if the produce request fails.
KR
Kristeen
2 years ago
I believe the consumer will see the message when the high watermark has advanced.
MO
Mona
2 years ago
I think the consumer will see the message right away.