SAA-C03 Design High-Performing Architectures Practice Question
A document portal needs low-latency full-text search across product descriptions and filtered attributes. Which managed service is most suitable? The design must avoid adding custom operational scripts.
⚠ Common exam trap
Many candidates confuse AWS Config (a compliance tool) with a search service due to its name, or mistakenly think Amazon EFS or SQS can be adapted for search with custom scripts, ignoring the requirement to avoid custom operational scripts.
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 OpenSearch Service
Amazon OpenSearch Service is the correct choice because it is a fully managed service that provides low-latency full-text search and filtering capabilities, ideal for indexing and searching product descriptions and attributes. It eliminates the need for custom operational scripts by handling cluster management, scaling, and backups automatically, aligning with the requirement to avoid custom operational overhead.
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 OpenSearch Service
Why this is correct
Amazon OpenSearch Service (successor to Amazon Elasticsearch Service) is a distributed search and analytics engine built on Apache Lucene. It indexes documents into an inverted index, enabling near-real-time full-text search with tokenization, stemming, and relevance scoring, making it the purpose-built service for low-latency text queries across a document portal.
- ✗
AWS Config
Why it's wrong here
AWS Config is a governance and compliance service that records resource configuration changes, maintains configuration histories, and evaluates resource settings against rules. It does not index application document content or expose a text search API; its data is metadata about AWS resources, not the unstructured text used for full-text search.
- ✗
Amazon EFS
Why it's wrong here
Amazon EFS provides a scalable, POSIX-compliant network file system for Linux workloads, typically used as shared storage for EC2 instances or containers. While EFS holds files, it offers no built-in indexing, tokenization, or query engine to perform full-text search over that content; you would need a separate service like OpenSearch to index and query the stored documents.
- ✗
Amazon SQS
Why it's wrong here
Amazon SQS is a fully managed message queuing service designed for decoupling application components and enabling asynchronous processing. Messages in SQS are transient and not indexed or searchable; it has no capability to store document collections or execute text search queries, so it cannot satisfy full-text search requirements in any way.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAA-C03 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 SAA-C03 exam.