DBS-C01 Deployment and Migration Practice Question
Exhibit
Refer to the exhibit.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "dms:CreateReplicationTask",
"Resource": "*",
"Condition": {
"StringEquals": {
"dms:DatabaseEngine": "oracle"
}
}
}
]
}Refer to the exhibit. An IAM policy allows creation of a DMS replication task only if the source database engine is Oracle. A user attempts to create a replication task with a MySQL source. What will happen?
⚠ Common exam trap
Watch out — candidates often assume a wildcard resource ('*') grants blanket permission, overlooking that conditions in the Allow statement must be satisfied for the Allow to take effect, and that IAM's default behavior is to deny any request that does not match an applicable Allow.
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
✓
The action will be denied because the condition does not match.
The IAM policy includes a condition that requires the source engine to be Oracle. When the user attempts to create a DMS replication task with a MySQL source, the condition fails, and IAM denies the action by default. The explicit deny is not needed; IAM uses an implicit deny when no policy statement allows the action under the given conditions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The action will fail with an error because the policy is malformed.
Why it's wrong here
Policy is valid.
- ✗
The action will succeed but the task will fail later.
Why it's wrong here
The policy denies the API call.
- ✗
The action will be allowed because the resource is '*'.
Why it's wrong here
Condition restricts to Oracle.
- ✓
The action will be denied because the condition does not match.
Why this is correct
Condition fails for MySQL.
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