← SOA-C02·Amazon Web Services

Question 1,213 of 1,546

Deployment, Provisioning, and Automation →easyMultiple ChoiceObjective-mapped

AWS OpsWorks Custom Chef Recipes for Configuration Management

This SOA-C02 practice question tests your understanding of deployment, provisioning, and automation. 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 to manage a stack of web servers. They need to deploy a configuration change that updates the /etc/nginx/nginx.conf file on all instances. Which OpsWorks feature should be used?

A
Custom Chef recipes
Chef recipes are used to apply configuration changes.
B
OpsWorks layers
Why wrong: Layers define the configuration but do not directly update files.
C
Lifecycle events
Why wrong: Lifecycle events trigger recipes, but the recipes themselves perform the configuration.
D
Custom cookbooks
Why wrong: Cookbooks contain recipes; the recipe is the executable unit.

Full breakdown with real-world context →

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

✓

Custom Chef recipes

Custom Chef recipes are the correct choice because OpsWorks uses Chef to manage configuration, and deploying a specific file change like /etc/nginx/nginx.conf requires a custom recipe that directly modifies the file using Chef resources (e.g., template or file resource). This allows precise, idempotent configuration management across all instances in the stack.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
Custom Chef recipes
Why this is correct
Chef recipes are used to apply configuration changes.
Related concept
Read the scenario before looking for a memorised answer.
✗
OpsWorks layers
Why it's wrong here
Layers define the configuration but do not directly update files.
✗
Lifecycle events
Why it's wrong here
Lifecycle events trigger recipes, but the recipes themselves perform the configuration.
✗
Custom cookbooks
Why it's wrong here
Cookbooks contain recipes; the recipe is the executable unit.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is confusing lifecycle events (the trigger) with the actual configuration logic (the recipe), leading candidates to pick 'Lifecycle events' when the question asks for the feature that performs the file update.

Detailed technical explanation

How to think about this question

Under the hood, OpsWorks runs Chef Client on each instance during lifecycle events. A custom recipe can use Chef's template resource with embedded Ruby (ERB) to dynamically generate nginx.conf from variables, ensuring consistency across instances. In a real-world scenario, you would store the recipe in a custom cookbook, upload it to an S3 bucket or Git repo, and associate it with the stack, then trigger a Configure or Deploy event to apply the change without manual SSH access.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.

TExam Day Tips

Watch for words such as best, first, most likely and least administrative effort.
Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. 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.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this SOA-C02 question test?

Deployment, Provisioning, and Automation — This question tests Deployment, Provisioning, and Automation — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Custom Chef recipes — Custom Chef recipes are the correct choice because OpsWorks uses Chef to manage configuration, and deploying a specific file change like /etc/nginx/nginx.conf requires a custom recipe that directly modifies the file using Chef resources (e.g., template or file resource). This allows precise, idempotent configuration management across all instances in the stack.

What should I do if I get this SOA-C02 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Same concept, more angles

1 more ways this is tested on SOA-C02

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. A company is using AWS OpsWorks for configuration management. They have a stack with multiple layers, and they want to automate the deployment of a custom configuration file to all instances in a specific layer. What is the MOST efficient way to achieve this?

easy

A.Define the file in an AWS CloudFormation template using the AWS::OpsWorks::App resource.
✓ B.Create a custom cookbook and assign it to the layer.
C.Use AWS Systems Manager Run Command to execute a script on each instance.
D.Add the configuration file as user data in the layer's Auto Scaling group.

Why B: Option B is correct because OpsWorks custom cookbooks allow you to run recipes that can deploy files to instances in a layer. Option A is incorrect because the AWS::OpsWorks::App resource is used to deploy applications, not configuration files, and it does not directly add custom configuration files to instances. Option C is incorrect because AWS Systems Manager Run Command can execute commands but is not specific to OpsWorks layers and is less efficient for automating deployments tied to a specific layer's lifecycle. Option D is incorrect because user data scripts run at boot time only, not on demand, and they are not directly associated with OpsWorks layers.

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