- A
Use Amazon CloudWatch Events to trigger an AWS Lambda function that registers the instance.
Why wrong: This adds complexity.
- B
Use AWS Systems Manager State Manager to run a registration script on the instance.
Why wrong: State Manager can run scripts but not automatically on launch.
- C
Configure the EC2 instance's user data to run a script that registers with the Web Dispatcher.
Why wrong: User data runs at launch but cannot register with ALB.
- D
Attach the Auto Scaling group to an ALB target group.
Auto Scaling automatically registers instances with the target group.
Question 1,446 of 1,733
PAS-C01 Technology Practice Question
This PAS-C01 practice question tests your understanding of technology. 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.
An SAP system is deployed on AWS using an Auto Scaling group of EC2 instances for the SAP application server layer. The application servers are stateless. The company wants to ensure that when a new instance is launched, it automatically registers with the SAP Web Dispatcher. The Web Dispatcher is configured with an Application Load Balancer (ALB). What is the best way to achieve automatic registration?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
✓
Attach the Auto Scaling group to an ALB target group.
Option D is correct because attaching the Auto Scaling group directly to an ALB target group ensures that any instance launched by the Auto Scaling group is automatically registered with the ALB. Since the SAP Web Dispatcher is configured behind the ALB, this automatically registers the instance with the Web Dispatcher. Option C is incorrect because user data scripts can be used for initial configuration, but relying on them for registration is less reliable and does not integrate with the ALB's health checks. Option A is incorrect because using CloudWatch Events and Lambda adds unnecessary complexity and latency. Option B is incorrect because AWS Systems Manager State Manager is designed for maintaining consistent state, not for immediate registration upon launch.
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.
- ✗
Use Amazon CloudWatch Events to trigger an AWS Lambda function that registers the instance.
Why it's wrong here
This adds complexity.
- ✗
Use AWS Systems Manager State Manager to run a registration script on the instance.
Why it's wrong here
State Manager can run scripts but not automatically on launch.
- ✗
Configure the EC2 instance's user data to run a script that registers with the Web Dispatcher.
Why it's wrong here
User data runs at launch but cannot register with ALB.
- ✓
Attach the Auto Scaling group to an ALB target group.
Why this is correct
Auto Scaling automatically registers instances with the target group.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Identify which PAS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Technology — This question tests Technology — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Attach the Auto Scaling group to an ALB target group. — Option D is correct because attaching the Auto Scaling group directly to an ALB target group ensures that any instance launched by the Auto Scaling group is automatically registered with the ALB. Since the SAP Web Dispatcher is configured behind the ALB, this automatically registers the instance with the Web Dispatcher. Option C is incorrect because user data scripts can be used for initial configuration, but relying on them for registration is less reliable and does not integrate with the ALB's health checks. Option A is incorrect because using CloudWatch Events and Lambda adds unnecessary complexity and latency. Option B is incorrect because AWS Systems Manager State Manager is designed for maintaining consistent state, not for immediate registration upon launch.
What should I do if I get this PAS-C01 question wrong?
Identify which PAS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 20, 2026
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