- A
Auto Scaling group
Why wrong: Manages instance count, not traffic distribution.
- B
Amazon Route 53 weighted routing
Why wrong: DNS-based routing, not real-time load balancing.
- C
Application Load Balancer
ALB distributes traffic across instances in multiple AZs.
- D
NAT Gateway
Why wrong: For outbound internet traffic, not load balancing.
Question 470 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.
A company is deploying SAP NetWeaver on AWS and needs to configure the SAP application server instances for high availability. Which AWS feature is used to distribute traffic across multiple application server instances in different Availability Zones?
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
✓
Application Load Balancer
The Application Load Balancer (ALB) is the correct AWS service for distributing traffic across multiple SAP application server instances in different Availability Zones. ALB operates at Layer 7, supports health checks, and can route HTTP/HTTPS traffic to target groups spanning multiple AZs, which is essential for SAP NetWeaver's stateless application layer high availability.
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.
- ✗
Auto Scaling group
Why it's wrong here
Manages instance count, not traffic distribution.
- ✗
Amazon Route 53 weighted routing
Why it's wrong here
DNS-based routing, not real-time load balancing.
- ✓
Application Load Balancer
Why this is correct
ALB distributes traffic across instances in multiple AZs.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
NAT Gateway
Why it's wrong here
For outbound internet traffic, not load balancing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse DNS-based routing (Route 53) with application-layer load balancing, not realizing that Route 53 weighted routing lacks health-check-aware traffic distribution and session persistence, which are required for SAP high availability.
Detailed technical explanation
How to think about this question
Under the hood, ALB uses target groups to register SAP application servers and performs health checks via HTTP/HTTPS probes to detect unhealthy instances. For SAP NetWeaver, the ALB can be configured with sticky sessions (cookie-based) to maintain user session affinity, which is critical for SAP's stateful components like the SAP Web Dispatcher or when using SAP GUI. The ALB also supports cross-zone load balancing, ensuring traffic is evenly distributed across instances in different Availability Zones without additional configuration.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Quick reference
OSI Model Reference
| Layer | Name | PDU | Key Protocols / Devices |
|---|---|---|---|
| 7 | Application | Data | HTTP, HTTPS, DNS, SMTP, FTP, SSH |
| 6 | Presentation | Data | TLS / SSL, JPEG, ASCII encoding |
| 5 | Session | Data | NetBIOS, RPC, SIP |
| 4 | Transport | Segment / Datagram | TCP, UDP |
| 3 | Network | Packet | IP, ICMP, OSPF — Routers |
| 2 | Data Link | Frame | Ethernet, Wi-Fi, PPP — Switches, Bridges |
| 1 | Physical | Bits | Cables, NICs, Hubs, Repeaters |
What to study next
Got this wrong? Here's your next step.
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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: Application Load Balancer — The Application Load Balancer (ALB) is the correct AWS service for distributing traffic across multiple SAP application server instances in different Availability Zones. ALB operates at Layer 7, supports health checks, and can route HTTP/HTTPS traffic to target groups spanning multiple AZs, which is essential for SAP NetWeaver's stateless application layer high availability.
What should I do if I get this PAS-C01 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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Last reviewed: Jul 4, 2026
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.
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