DBS-C01 Database Security Practice Question
Exhibit
Refer to the exhibit.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"rds-db:connect"
],
"Resource": [
"arn:aws:rds-db:us-east-1:123456789012:dbuser:db-ABCDEFGHIJKL01234/db_user1"
]
}
]
}An IAM policy is attached to an IAM user. The user wants to connect to an RDS MySQL database using IAM database authentication. What does this policy 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
✓
Allows the user to connect to the RDS instance with the database user name 'db_user1'.
IAM database authentication allows an IAM user to authenticate to an RDS MySQL database using an IAM user or role. The IAM policy must include the rds-db:connect action with a resource ARN specifying the RDS instance and the database user name. When the resource ARN includes 'db_user1', the policy only permits connection as that specific database user, not as any user. Option A is incorrect because the policy does not grant permissions to any database or any user; it is scoped to 'db_user1'. Option B is incorrect because the rds-db:connect action does not grant management of the RDS instance. Option D is incorrect because the resource ARN restricts to 'db_user1', so connecting with any other database user name would be denied.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Allows the user to connect to any database on the RDS instance as any user.
Why it's wrong here
The resource is specific to one user.
- ✗
Allows the user to manage the RDS instance.
Why it's wrong here
The action is 'rds-db:connect', not management actions.
- ✓
Allows the user to connect to the RDS instance with the database user name 'db_user1'.
Why this is correct
The resource specifies the database user.
- ✗
Allows the user to connect to the RDS instance with any database user name.
Why it's wrong here
It allows only 'db_user1'.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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