Cloud

AWS DVA-C02AWS Certified Developer — Associate

AWS Certified Developer — Associate covers building, deploying, and debugging applications on AWS using SDKs, CLI, and core services.

✓ 30 free questions   ✓ No credit card   ✓ Cancel anytime

Exam facts

Everything you need to know about the AWS DVA-C02 exam.

Passing score
720 / 1000
Format & length
65 questions · 130 minutes
Voucher cost
$150 USD
Prerequisites
1+ year of hands-on AWS development recommended
Validity
3 years

Exam facts sourced from the official AWS certification page. Last reviewed June 2026.

What’s tested

Key topics on the AWS DVA-C02 exam.

The Cert Climb question bank is mapped to every domain on the official AWS DVA-C02 exam blueprint, so what you study is what the test asks.

Who it’s for

Built for the people taking this exam.

Application developers building on AWS — Lambda, DynamoDB, API Gateway, SQS, S3.

Why it matters in 2026

The career signal.

DVA-C02 is the AWS credential that aligns with serverless and microservices roles — Lambda, DynamoDB, API Gateway, Step Functions, EventBridge. Job postings for cloud developers increasingly call it out by name alongside or instead of SAA, and it pairs naturally with a language cert (Python/Node) for backend roles. Senior dev compensation with DVA-C02 in the US clusters around $130–150K.

Sample question

What a AWS DVA-C02 question looks like.

A developer is designing a DynamoDB table for a multi-tenant SaaS application where each tenant can have millions of orders. The access pattern requires fetching all orders for a specific tenant sorted by order creation timestamp, and the cardinality of tenants is very high (hundreds of thousands). Which partition key design best avoids hot partitions while supporting this access pattern?

  • AUse tenantId as the partition key and orderId as the sort key; no additional design needed.
  • BUse a composite partition key such as tenantId#shardSuffix (e.g., tenantId#1 through tenantId#10) and createdAt as the sort key, then scatter-gather across shards at read time.
  • CUse orderId as the partition key and tenantId as the sort key, then use a Scan with a FilterExpression on tenantId.
  • DUse a single-table design with the partition key set to SERVICE and the sort key set to tenantId#createdAt to co-locate all data.
See the answer & explanation

Correct: B. Use a composite partition key such as tenantId#shardSuffix (e.g., tenantId#1 through tenantId#10) and createdAt as the sort key, then scatter-gather across shards at read time.

Why: Write sharding by appending a random or deterministic suffix to the partition key (tenantId#N) distributes writes across multiple physical partitions, preventing hot-partition throttling for high-volume tenants. At read time you issue parallel Query requests for each shard and merge results — a well-known scatter-gather pattern. Option A creates a hot partition for any tenant with very high write throughput. Option C requires a full-table Scan, which is expensive and does not scale. Option D co-locates all tenant data under a single partition key value 'SERVICE', which creates the most extreme hot-partition scenario possible.

Start free trial

What you get

Everything you need to actually pass.

Full question bank

40 questions covering every objective on the official AWS DVA-C02 exam blueprint, with detailed explanations on every option — right and wrong.

Quiz modes

Timed exam simulation, missed-only review, topic drills, and a daily question of the day. Practice the way you study best.

Flashcards

Spaced-repetition flashcards generated from each topic. Pull them up on a phone in the gap between meetings.

Progress tracking

See per-topic accuracy and answered counts. Find weak areas before they cost you on test day.

Per-category premium

Unlocking AWS DVA-C02 unlocks every other Cloud exam in the Cert Climb catalog — pay once, stack credentials.

No-fluff explanations

Every wrong answer comes with a 2-3 sentence explanation of why it’s wrong, not just “the correct answer is X.” Pattern recognition is the whole game.

Read while you study

AWS DVA-C02 articles & study guides

FAQ

Frequently asked questions about AWS DVA-C02

What is the AWS DVA-C02 exam?

AWS Certified Developer — Associate covers building, deploying, and debugging applications on AWS using SDKs, CLI, and core services.

How many questions are on the AWS DVA-C02 exam, and how long is it?

65 questions · 130 minutes

What is the passing score for the AWS DVA-C02 exam?

720 / 1000

How much does the AWS DVA-C02 exam cost?

$150 USD

Are there prerequisites for the AWS DVA-C02 exam?

1+ year of hands-on AWS development recommended

How long is the AWS DVA-C02 certification valid?

3 years

How many questions does the AWS DVA-C02 bank have?

40 questions, organized into 4 subject areas mapped to the official exam objectives.

Is the free trial really free?

Yes. 30 questions, no credit card, no email-trap, no “activate by Friday or pay” spam. You either upgrade because the bank’s good, or you don’t.

What does premium cost?

Premium is sold per category and unlocks every Cloud exam in the Cert Climb catalog. Plans are 1-month, 3-month, or 12-month — see the upgrade modal for current pricing.

How current is the AWS DVA-C02 content?

We track exam version updates and refresh the bank within weeks of new objectives. Where the version of an exam matters (e.g. CompTIA SY0-701 vs. SY0-601), question explanations call it out.

Can I cancel my subscription anytime?

Yes. Cancellation is one click from your profile. Your access continues through the end of the period you’ve already paid for.

Stop researching. Start drilling.

30 free questions on AWS DVA-C02 — no card, no commitment.

Start free trial