Question 226 of 1,746
Design for New SolutionshardMultiple ChoiceObjective-mapped

SAP-C02 Design for New Solutions Practice Question

This SAP-C02 practice question tests your understanding of design for new solutions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

A company is designing a new solution to ingest real-time clickstream data from a website. The data volume varies from 100 to 100,000 events per second. The solution must buffer the data for up to 5 minutes and then deliver it to Amazon S3 for analysis. The company wants to minimize operational overhead and cost. Which service should be used to buffer the data?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "minimum / minimize"

    Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Amazon Kinesis Data Firehose

Amazon Kinesis Data Firehose is the correct choice because it is a fully managed service designed to ingest streaming data, buffer it for configurable durations (up to 15 minutes by default, but easily set to 5 minutes), and automatically deliver it to destinations like Amazon S3. It handles variable data volumes (100 to 100,000 events per second) without requiring manual scaling, minimizing operational overhead and cost compared to alternatives.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Amazon Kinesis Data Streams

    Why it's wrong here

    Requires managing shards and consumers.

  • AWS Lambda

    Why it's wrong here

    Lambda is not a buffer service.

  • Amazon Kinesis Data Firehose

    Why this is correct

    Firehose provides serverless buffering and delivery to S3.

    Clue confirmation

    The clue word "minimum / minimize" in the question point toward this answer.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Amazon SQS

    Why it's wrong here

    SQS is not optimized for high-throughput streaming.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse Kinesis Data Streams (which requires custom consumers and scaling management) with Kinesis Data Firehose (which is purpose-built for buffering and automated delivery to S3), leading them to choose the more complex option A.

Detailed technical explanation

How to think about this question

Kinesis Data Firehose uses a buffer interval (default 60 seconds, configurable up to 900 seconds) and a buffer size (default 5 MB) to accumulate records before writing to S3. Under the hood, it automatically scales the underlying shard-like resources (called 'provisioned capacity' or 'on-demand') to handle throughput spikes, and it can compress data (e.g., GZIP) and encrypt it with SSE-S3 or KMS before delivery. In a real-world scenario, if the clickstream data exceeds the buffer size before 5 minutes, Firehose will flush early to prevent memory exhaustion, ensuring no data loss.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.

TExam Day Tips

  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.

Quick reference

AWS S3 Storage Class Comparison

Storage ClassMin DurationRetrievalUse Case
S3 StandardNoneImmediateFrequently accessed data
S3 Standard-IA30 daysImmediateInfrequent access, rapid retrieval
S3 One Zone-IA30 daysImmediateNon-critical infrequent data
S3 Intelligent-TieringNoneImmediate–hoursUnknown or changing access patterns
S3 Glacier Instant90 daysMillisecondsArchive with instant retrieval
S3 Glacier Flexible90 daysMinutes–hoursArchive, flexible retrieval
S3 Glacier Deep Archive180 daysHoursLong-term compliance archive

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this SAP-C02 question test?

Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Amazon Kinesis Data Firehose — Amazon Kinesis Data Firehose is the correct choice because it is a fully managed service designed to ingest streaming data, buffer it for configurable durations (up to 15 minutes by default, but easily set to 5 minutes), and automatically deliver it to destinations like Amazon S3. It handles variable data volumes (100 to 100,000 events per second) without requiring manual scaling, minimizing operational overhead and cost compared to alternatives.

What should I do if I get this SAP-C02 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Are there clue words in this question I should notice?

Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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This SAP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SAP-C02 exam.