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Confluent CCDAK Exam - Topic 1 Question 6 Discussion

Your streams application is reading from an input topic that has 5 partitions. You run 5 instances of your application, each with num.streams.threads set to 5. How many stream tasks will be created and how many will be active?
D) 25 created, 5 active
A) 5 created, 1 active
B) 5 created, 5 active
C) 25 created, 25 active

Confluent CCDAK Exam - Topic 1 Question 6 Discussion

Actual exam question for Confluent's CCDAK exam
Question #: 6
Topic #: 1
[All CCDAK Questions]

Your streams application is reading from an input topic that has 5 partitions. You run 5 instances of your application, each with num.streams.threads set to 5. How many stream tasks will be created and how many will be active?

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Suggested Answer: D

One partition is assigned a thread, so only 5 will be active, and 25 threads (i.e. tasks) will be created


by Whitley at May 04, 2022, 09:51 AM

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Beatriz
8 months ago
I thought it would be more than 5 active with 5 instances.
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Aileen
9 months ago
Definitely B, 5 created and 5 active!
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Jaime
9 months ago
Wait, how can there be 25 tasks? That seems off.
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Trina
9 months ago
I think it's actually 25 created, but only 5 active.
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Kimberlie
9 months ago
5 tasks created, 5 active!
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Dorethea
9 months ago
I thought that if there are 5 partitions and 5 threads, it would mean 25 tasks in total. But I’m not sure if all of them would be active at the same time.
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Domingo
9 months ago
I practiced a similar question, and I think each instance can handle one task per partition, so maybe 5 active? That feels right, but I’m a bit confused.
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Hailey
9 months ago
I remember that the number of stream tasks is based on the number of partitions, so I think there will be 5 created. But I'm not sure about how many will be active with 5 instances running.
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Mabel
9 months ago
I feel like the answer is D, 25 created and 5 active, because the threads multiply, but only one thread can work on each partition at a time.
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Bronwyn
9 months ago
Ah, I remember learning about this in class. The xinetd config files are stored in a specific directory, so I just need to recall the full path.
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Rory
10 months ago
I feel pretty confident about the parent-child component event handling, but the other options are making me second-guess myself. I'll need to carefully review each choice.
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