Amazon BDS-C00 Exam - Topic 1 Question 125 Discussion

Actual exam question for Amazon's BDS-C00 exam

Question #: 125
Topic #: 1

An organization is using Amazon Kinesis Data Streams to collect data generated from thousands of temperature devices and is using AWS Lambda to process the data. Devices generate 10 to 12 million records every day, but Lambda is processing only around 450 thousand records. Amazon CloudWatch indicates that throttling on Lambda is not occurring.

What should be done to ensure that all data is processed? (Choose two.)

AIncrease the BatchSize value on the EventSource, and increase the memory allocated to the Lambda function.

BDecrease the BatchSize value on the EventSource, and increase the memory allocated to the Lambda function.

CCreate multiple Lambda functions that will consume the same Amazon Kinesis stream.

DIncrease the number of vCores allocated for the Lambda function.

EIncrease the number of shards on the Amazon Kinesis stream.

Show Suggested Answer

Suggested Answer: A, E

https://tech.trivago.com/2018/07/13/aws-kinesis-with-lambdas-lessons-learned/

by Mariann at Jan 05, 2026, 05:16 AM

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Jacquelyne

3 days ago

B and D are just weird choices. Clearly A and E are the right answers here.

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Dominga

8 days ago

I'd go with C and E. Spreading the load across multiple functions sounds like a good idea.

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Bronwyn

13 days ago

A and E seem like the way to go. Gotta process all that data, you know?

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Monte

19 days ago

I’m a bit confused about the memory allocation part. Does increasing memory really affect the processing speed, or is it just for handling larger payloads?

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Trevor

24 days ago

Creating multiple Lambda functions sounds like a good idea, especially since we have so many records coming in. I saw a similar question about scaling Lambda functions.

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Trinidad

29 days ago

I think we might need to increase the BatchSize too, but I can't recall if that would actually help with the overall throughput.

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Elliott

1 month ago

I remember reading that increasing the number of shards can help with processing more records, but I'm not sure if that's the only thing we need to do.

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Cordelia

1 month ago

Increasing the number of shards on the Kinesis stream could also help distribute the load and get more data processed. I'll need to consider that option as well.

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Kimberlie

1 month ago

I think the key here is to get more parallelism in the processing. Creating multiple Lambda functions to consume the same stream sounds like a good approach.

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Lindsay

2 months ago

I'm a bit confused about the BatchSize. Should I increase or decrease it? And how will that affect the processing?

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Johnna

2 months ago

Okay, let's see. Throttling isn't the issue, so I don't think increasing the memory or vCores will help. Maybe I should focus on the Kinesis stream itself.

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Jaime

2 months ago

Hmm, this is a tricky one. I'll need to think through the options carefully to make sure I don't miss anything.

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