DBS-C01 Management and Operations Practice Question
This DBS-C01 practice question tests your understanding of management and operations. 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.
Exhibit
Given the following IAM policy:
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"rds:CreateDBSnapshot",
"rds:DescribeDBSnapshots"
],
"Resource": "*"
},
{
"Effect": "Deny",
"Action": "rds:DeleteDBSnapshot",
"Resource": "arn:aws:rds:us-east-1:123456789012:snapshot:prod-*"
}
]
}
Refer to the exhibit. A database engineer is assigned this IAM policy. Which of the following actions can the engineer perform? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Describe all automated snapshots
Correct answers are B and D. B: The policy allows 'rds:DescribeDBSnapshots' for all resources. D: The policy allows 'rds:CreateDBSnapshot' for all resources, so creating a snapshot with any name is allowed. A is wrong because the Deny statement blocks deletion of snapshots with names starting with 'prod-'. C is wrong because the Deny specifically targets the 'prod-*' pattern. E is wrong because the Deny applies to snapshots in us-east-1 only? Actually the Deny resource is specific to us-east-1, but the question says 'in any region' - the policy's Deny applies only to us-east-1, so deletion in other regions is allowed? Wait, the resource ARN specifies us-east-1, so Deny only applies to snapshots in that region. But the question says 'prod-database-snapshot' - if it's in us-east-1, it's denied. However, the user is asking about 'a snapshot named prod-database-snapshot' - that matches the pattern. So C is wrong. E is wrong because the policy does not allow deletion of snapshots with prefix 'prod-'. The correct interpretation: The Deny only applies to the specific ARN with region us-east-1, so if the snapshot is in another region, deletion is allowed? But the policy does not explicitly allow deletion, so by default it's denied (unless there is an Allow). The policy only allows Create and Describe. Deletion is not allowed anywhere because there is no Allow statement for Delete. So deletion is implicitly denied for all snapshots. Wait, IAM default is deny. So without an explicit Allow for Delete, deletion is denied. So E is wrong. The correct answers are B and D.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Describe all automated snapshots
Why this is correct
The Allow statement permits DescribeDBSnapshots for all resources.
Related concept
Static NAT maps one inside address to one outside address.
✗
Delete a manual snapshot named dev-snapshot
Why it's wrong here
There is no Allow statement for DeleteDBSnapshot, so deletion is implicitly denied.
✗
Delete a manual snapshot named prod-database-snapshot
Why it's wrong here
The Deny statement explicitly denies deletion of snapshots matching 'prod-*'.
✗
Delete a manual snapshot named prod-backup
Why it's wrong here
The Deny statement blocks deletion of snapshots with names starting with 'prod-', and there is no Allow for Delete.
✓
Create a manual snapshot named test-snapshot
Why this is correct
The Allow statement permits CreateDBSnapshot for all resources.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DBS-C01 NAT questions on configuration and troubleshooting.
Management and Operations — This question tests Management and Operations — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Describe all automated snapshots — Correct answers are B and D. B: The policy allows 'rds:DescribeDBSnapshots' for all resources. D: The policy allows 'rds:CreateDBSnapshot' for all resources, so creating a snapshot with any name is allowed. A is wrong because the Deny statement blocks deletion of snapshots with names starting with 'prod-'. C is wrong because the Deny specifically targets the 'prod-*' pattern. E is wrong because the Deny applies to snapshots in us-east-1 only? Actually the Deny resource is specific to us-east-1, but the question says 'in any region' - the policy's Deny applies only to us-east-1, so deletion in other regions is allowed? Wait, the resource ARN specifies us-east-1, so Deny only applies to snapshots in that region. But the question says 'prod-database-snapshot' - if it's in us-east-1, it's denied. However, the user is asking about 'a snapshot named prod-database-snapshot' - that matches the pattern. So C is wrong. E is wrong because the policy does not allow deletion of snapshots with prefix 'prod-'. The correct interpretation: The Deny only applies to the specific ARN with region us-east-1, so if the snapshot is in another region, deletion is allowed? But the policy does not explicitly allow deletion, so by default it's denied (unless there is an Allow). The policy only allows Create and Describe. Deletion is not allowed anywhere because there is no Allow statement for Delete. So deletion is implicitly denied for all snapshots. Wait, IAM default is deny. So without an explicit Allow for Delete, deletion is denied. So E is wrong. The correct answers are B and D.
What should I do if I get this DBS-C01 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DBS-C01 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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