DBS-C01 Deployment and Migration Practice Question
A company is migrating a 2 TB MongoDB database to Amazon DocumentDB. Which TWO factors should be considered when planning the migration?
⚠ Common exam trap
The trap here is that candidates often focus on operational features of DocumentDB (like automated backups or authentication) as migration planning factors, when the actual critical considerations are source version compatibility and network constraints that directly affect the feasibility and duration of the migration.
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
✓
Source MongoDB version compatibility with DocumentDB.
Amazon DocumentDB is wire-protocol-compatible with MongoDB 3.6 and 4.0, but not with all MongoDB versions. If the source MongoDB version is older or newer than these supported versions, you may need to upgrade or downgrade the source before migration. Compatibility also affects features like indexes, aggregation pipelines, and data types, which can cause migration failures if not addressed. Option E is correct because network bandwidth and latency directly impact the time required to transfer a 2 TB dataset. Insufficient bandwidth can lead to prolonged migration windows or failures. Additionally, high latency can degrade performance of replication-based tools. Therefore, assessing network capacity and optimizing the transfer path is a critical planning factor.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
DocumentDB stores backups in Amazon S3 automatically.
Why it's wrong here
DocumentDB has its own backup mechanism.
- ✗
DocumentDB requires LDAP for authentication.
Why it's wrong here
DocumentDB uses IAM or password authentication.
- ✗
DocumentDB does not support encryption in transit.
Why it's wrong here
DocumentDB supports TLS encryption.
- ✓
Source MongoDB version compatibility with DocumentDB.
Why this is correct
DocumentDB may not support all MongoDB versions.
- ✓
Network bandwidth and latency between source and target.
Why this is correct
Affects migration speed and feasibility.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-C01 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 DBS-C01 exam.