DOP-C02 Configuration Management and IaC Practice Question
This DOP-C02 practice question tests your understanding of configuration management and iac. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A company uses AWS OpsWorks for configuration management of its EC2 instances. The DevOps team wants to apply a new security patch to all instances in a specific layer. What is the most efficient way to accomplish this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Update the layer's custom Chef recipe to include the patch and trigger a lifecycle event to execute the recipe on all instances.
Option C is correct because OpsWorks allows running custom Chef recipes as lifecycle events. Option A is wrong because it requires manual login. Option B is wrong because it is not automated across all instances. Option D is wrong because a new stack is unnecessary.
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 new OpsWorks stack with the patch and migrate instances to it.
Why it's wrong here
Unnecessarily complex and disruptive.
✗
SSH into each instance and run the patch command manually.
Why it's wrong here
Not scalable or automated.
✓
Update the layer's custom Chef recipe to include the patch and trigger a lifecycle event to execute the recipe on all instances.
Why this is correct
OpsWorks runs Chef recipes on instances based on lifecycle events.
Related concept
Static NAT maps one inside address to one outside address.
✗
Use AWS Systems Manager Run Command to run a patch command on each instance individually.
Why it's wrong here
While possible, it is not as integrated as OpsWorks lifecycle events.
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 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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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 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 DOP-C02 NAT questions on configuration and troubleshooting.
Configuration Management and IaC — This question tests Configuration Management and IaC — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Update the layer's custom Chef recipe to include the patch and trigger a lifecycle event to execute the recipe on all instances. — Option C is correct because OpsWorks allows running custom Chef recipes as lifecycle events. Option A is wrong because it requires manual login. Option B is wrong because it is not automated across all instances. Option D is wrong because a new stack is unnecessary.
What should I do if I get this DOP-C02 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 DOP-C02 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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