The answer is multiple EC2 instances across Availability Zones and an Application Load Balancer. This combination is essential for SAP NetWeaver application layer high availability because it eliminates a single point of failure by distributing the application servers across physically separate AZs, while the ALB actively routes incoming traffic only to healthy instances based on health checks. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this tests your understanding that HA for the application layer requires both redundancy at the compute level and a load balancer for traffic distribution and automatic failover—a common trap is thinking a single instance or a Network Load Balancer suffices, but the ALB’s layer 7 health checks are critical for SAP’s application-level monitoring. Remember the mnemonic “Two AZs, one ALB” to recall that you need at least two EC2 instances in different AZs paired with an Application Load Balancer for true SAP application HA.
PAS-C01 Design of SAP Workloads on AWS Practice Question
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 planning to run SAP NetWeaver on AWS and needs to ensure that the architecture supports high availability for the application layer. Which TWO components are essential for an HA SAP NetWeaver application server setup? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Multiple EC2 instances in different Availability Zones
For high availability of the SAP NetWeaver application layer, you need multiple EC2 instances distributed across different Availability Zones (AZs) to eliminate a single point of failure. An Application Load Balancer (ALB) is essential to distribute incoming traffic across these instances and perform health checks, ensuring that if one instance or AZ fails, traffic is routed to healthy instances. This combination provides fault tolerance and automatic failover for the SAP application servers.
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.
✗
Amazon ElastiCache for session management
Why it's wrong here
ElastiCache is a caching service, not for application HA.
✓
Multiple EC2 instances in different Availability Zones
Why this is correct
Multiple instances across AZs provide failover capability.
Related concept
Read the scenario before looking for a memorised answer.
✗
A single large EC2 instance for all application servers
Why it's wrong here
A single instance is a single point of failure.
✓
An Application Load Balancer to distribute traffic
Why this is correct
ALB distributes traffic across healthy application servers.
Related concept
Read the scenario before looking for a memorised answer.
✗
Amazon RDS for database layer
Why it's wrong here
SAP NetWeaver uses its own database, not RDS.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the database layer (RDS) or caching services (ElastiCache) as part of the application layer HA, when in fact the core requirement is multiple EC2 instances across AZs and a load balancer to distribute traffic.
Detailed technical explanation
How to think about this question
SAP NetWeaver application servers use a stateless architecture where each instance can handle user sessions independently, but session state is typically stored in the database or shared memory (e.g., via the SAP Web Dispatcher). The ALB performs health checks on the SAP ICM (Internet Communication Manager) port (e.g., 8000 for HTTP) and can use sticky sessions (cookies) to maintain session affinity if needed. In a real-world scenario, you would configure the ALB with cross-zone load balancing and target groups pointing to each EC2 instance's SAP application server port, ensuring traffic is evenly distributed and failed instances are automatically removed.
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.
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.
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Multiple EC2 instances in different Availability Zones — For high availability of the SAP NetWeaver application layer, you need multiple EC2 instances distributed across different Availability Zones (AZs) to eliminate a single point of failure. An Application Load Balancer (ALB) is essential to distribute incoming traffic across these instances and perform health checks, ensuring that if one instance or AZ fails, traffic is routed to healthy instances. This combination provides fault tolerance and automatic failover for the SAP application servers.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.