Quick Answer
The answer is to use AWS DMS with parallel load and ongoing replication. This is the most efficient approach because DMS’s parallel load capability splits the migration into multiple concurrent tasks, loading different tables simultaneously, which dramatically reduces the total time for a 2 TB Oracle database even over a 100 Mbps link. By combining this with ongoing replication, you can minimize downtime and ensure data consistency without needing to transfer the entire dataset in one sequential pass. On the AWS Certified Database Specialty DBS-C01 exam, this question tests your understanding of migration acceleration techniques under bandwidth constraints; a common trap is assuming a single-threaded export or a full backup transfer can finish within three days, but the math on 100 Mbps shows they cannot. Remember the memory tip: “Parallel beats sequential, and replication keeps you current.”
This DBS-C01 practice question tests your understanding of deployment and migration. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 migrating a 2 TB Oracle database from on-premises to Amazon RDS for Oracle. The network bandwidth is 100 Mbps. The migration must be completed within 3 days. Which approach is MOST efficient?
Use AWS DMS with parallel load and ongoing replication.
DMS parallel load reduces migration time.
Use Oracle RMAN to create a backup and restore to RDS.
Why wrong: Backup transfer over 100 Mbps may exceed 3 days.
Use Oracle Data Pump with a single export and import.
Why wrong: Single-threaded export/import may be too slow.
Use Oracle GoldenGate for real-time replication.
Why wrong: GoldenGate adds complexity and cost.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use AWS DMS with parallel load and ongoing replication.
Option C is correct because AWS DMS with parallel load can significantly speed up the migration by loading multiple tables simultaneously. Option A is wrong because a single-threaded export/import may not complete within 3 days on 100 Mbps. Option B is wrong because Oracle GoldenGate requires additional licensing and setup. Option D is wrong because RMAN backup and restore requires transferring the full backup over the network.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Use AWS DMS with parallel load and ongoing replication.
Why this is correct
DMS parallel load reduces migration time.
Related concept
Standard ACLs match source addresses.
Use Oracle RMAN to create a backup and restore to RDS.
Why it's wrong here
Backup transfer over 100 Mbps may exceed 3 days.
Use Oracle Data Pump with a single export and import.
Why it's wrong here
Single-threaded export/import may be too slow.
Use Oracle GoldenGate for real-time replication.
Why it's wrong here
GoldenGate adds complexity and cost.
Common exam traps
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DBS-C01 ACL questions on filtering logic and placement.
Deployment and Migration — study guide chapter
Learn the concepts, then practise the questions
Deployment and Migration practice questions
Targeted practice on this topic area only
All DBS-C01 questions
1,730 questions across all exam domains
AWS Certified Database Specialty DBS-C01 study guide
Full concept coverage aligned to exam objectives
DBS-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise DBS-C01 questions linked to Workload-Specific Database Design.
Practise DBS-C01 questions linked to Deployment and Migration.
Practise DBS-C01 questions linked to Management and Operations.
Practise DBS-C01 questions linked to Monitoring and Troubleshooting.
Practise DBS-C01 questions linked to Database Security.
Practise DBS-C01 questions linked to DBS-C01 fundamentals.
Practise DBS-C01 questions linked to DBS-C01 scenario.
Practise DBS-C01 questions linked to DBS-C01 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Deployment and Migration — This question tests Deployment and Migration — Standard ACLs match source addresses..
The correct answer is: Use AWS DMS with parallel load and ongoing replication. — Option C is correct because AWS DMS with parallel load can significantly speed up the migration by loading multiple tables simultaneously. Option A is wrong because a single-threaded export/import may not complete within 3 days on 100 Mbps. Option B is wrong because Oracle GoldenGate requires additional licensing and setup. Option D is wrong because RMAN backup and restore requires transferring the full backup over the network.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DBS-C01 ACL questions on filtering logic and placement.
Standard ACLs match source addresses.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 20, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.