DBS-C01 Deployment and Migration Practice Question
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.
Which THREE actions should be taken to prepare for a migration of an on-premises MySQL database to Amazon RDS for MySQL with minimal downtime using AWS DMS?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable binary logging on the source MySQL database
Correct: A (enable binary logging for CDC), B (create a user with replication privileges), and E (set up an SSH tunnel for secure connection). C is not required; D is not necessary for DMS.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Enable binary logging on the source MySQL database
Why this is correct
Binary logging is required for DMS to capture changes.
Related concept
Authentication checks who the user is.
✓
Set up an SSH tunnel or VPN for secure connectivity between DMS and the source
Why this is correct
Secure connection is recommended for data in transit.
Related concept
Authentication checks who the user is.
✓
Create a database user with REPLICATION CLIENT and REPLICATION SLAVE privileges
Why this is correct
DMS needs these privileges to read the binary logs.
Related concept
Authentication checks who the user is.
✗
Disable foreign key checks on the source database
Why it's wrong here
Foreign keys are handled during migration; disabling is not required.
✗
Take a full backup of the source database
Why it's wrong here
DMS performs a full load automatically; a separate backup is not needed.
Common exam traps
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Detailed technical explanation
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
Authentication checks who the user is.
Authorization controls what the user is allowed to do after login.
Privilege levels affect access to EXEC and configuration commands.
AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
→Do not assume successful login means full administrative access.
→Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
→Separate login problems from permission problems before choosing the answer.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related DBS-C01 questions on access control and AAA configuration.
Deployment and Migration — This question tests Deployment and Migration — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: Enable binary logging on the source MySQL database — Correct: A (enable binary logging for CDC), B (create a user with replication privileges), and E (set up an SSH tunnel for secure connection). C is not required; D is not necessary for DMS.
What should I do if I get this DBS-C01 question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related DBS-C01 questions on access control and AAA configuration.
What is the key concept behind this question?
Authentication checks who the user is.
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Question Discussion
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