- A
Amazon DocumentDB
Why wrong: DocumentDB is MongoDB-compatible, but not the best fit for high availability beyond single region.
- B
Amazon DynamoDB
DynamoDB provides high availability and durability.
- C
Amazon Neptune
Why wrong: Neptune is graph database, not general NoSQL.
- D
Amazon RDS
Why wrong: RDS is relational, not NoSQL.
- E
Amazon Keyspaces (for Apache Cassandra)
Keyspaces is managed Cassandra, a NoSQL database.
Question 683 of 1,746
SAP-C02 Amazon DynamoDB 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. A key principle to apply: amazon DynamoDB. 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 application that requires a highly available and durable NoSQL database. Which TWO services should be considered? (Choose TWO.)
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 DynamoDB
Amazon DynamoDB is a fully managed, serverless, key-value and document NoSQL database designed for high availability and durability. It replicates data across multiple Availability Zones (AZs) by default and provides single-digit millisecond latency at any scale, making it ideal for highly available NoSQL workloads.
Key principle: Amazon DynamoDB
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 DocumentDB
Why it's wrong here
DocumentDB is MongoDB-compatible, but not the best fit for high availability beyond single region.
- ✓
Amazon DynamoDB
Why this is correct
DynamoDB provides high availability and durability.
Related concept
Amazon DynamoDB
- ✗
Amazon Neptune
Why it's wrong here
Neptune is graph database, not general NoSQL.
- ✗
Amazon RDS
Why it's wrong here
RDS is relational, not NoSQL.
- ✓
Amazon Keyspaces (for Apache Cassandra)
Why this is correct
Keyspaces is managed Cassandra, a NoSQL database.
Related concept
Amazon DynamoDB
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may mistakenly choose Amazon DocumentDB (thinking it is a NoSQL option) but it lacks the same level of high availability and durability as DynamoDB or Keyspaces for this specific requirement. Alternatively, they might think Amazon RDS is suitable, but RDS is relational, not NoSQL.
Detailed technical explanation
How to think about this question
DynamoDB achieves high availability and durability by automatically replicating data across three AZs in an AWS Region using synchronous replication, ensuring no data loss on AZ failure. Keyspaces (for Apache Cassandra) is a managed Cassandra-compatible NoSQL database that also replicates data across multiple AZs with tunable consistency levels (e.g., LOCAL_QUORUM, EACH_QUORUM), providing similar durability guarantees. Both services are serverless and scale horizontally without downtime, unlike traditional databases that require manual sharding or failover.
KKey Concepts to Remember
- Amazon DynamoDB
- Amazon Keyspaces (for Apache Cassandra)
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
Amazon DynamoDB
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Review amazon DynamoDB, then practise related SAP-C02 questions on the same topic to reinforce the concept.
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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 — Amazon DynamoDB.
What is the correct answer to this question?
The correct answer is: Amazon DynamoDB — Amazon DynamoDB is a fully managed, serverless, key-value and document NoSQL database designed for high availability and durability. It replicates data across multiple Availability Zones (AZs) by default and provides single-digit millisecond latency at any scale, making it ideal for highly available NoSQL workloads.
What should I do if I get this SAP-C02 question wrong?
Review amazon DynamoDB, then practise related SAP-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Amazon DynamoDB
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Last reviewed: Jul 4, 2026
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.
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