PAS-C01 Operations and Maintenance Practice Question
This PAS-C01 practice question tests your understanding of operations and maintenance. 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.
An SAP Basis administrator needs to apply security patches to the operating system of SAP EC2 instances. The administrator wants to use AWS Systems Manager Patch Manager. Which THREE steps are required to set up patching? (Choose THREE.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a patch baseline in AWS Systems Manager.
A, B, and D are correct. Installing SSM Agent on instances is required. Creating a patch baseline defines which patches to apply. Associating the instances with a maintenance window schedules the patching. C is wrong because CloudWatch Logs are not required for patching. E is wrong because Lambda is not needed.
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.
✓
Create a patch baseline in AWS Systems Manager.
Why this is correct
The patch baseline defines approved and rejected patches.
Related concept
Static NAT maps one inside address to one outside address.
✗
Create an AWS Lambda function to invoke the patching process.
Why it's wrong here
Lambda is not required; Patch Manager handles the process.
✓
Install the AWS Systems Manager Agent (SSM Agent) on each EC2 instance.
Why this is correct
SSM Agent is required for Patch Manager to work.
Related concept
Static NAT maps one inside address to one outside address.
✗
Configure Amazon CloudWatch Logs to store patch logs.
Why it's wrong here
CloudWatch Logs are optional, not required.
✓
Associate the instances with a maintenance window.
Why this is correct
Maintenance windows schedule when patching occurs.
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 PAS-C01 NAT questions on configuration and troubleshooting.
Operations and Maintenance — This question tests Operations and Maintenance — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Create a patch baseline in AWS Systems Manager. — A, B, and D are correct. Installing SSM Agent on instances is required. Creating a patch baseline defines which patches to apply. Associating the instances with a maintenance window schedules the patching. C is wrong because CloudWatch Logs are not required for patching. E is wrong because Lambda is not needed.
What should I do if I get this PAS-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 PAS-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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Question Discussion
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