The answer is placing the primary and secondary HANA servers in a cluster placement group and increasing the log volume size. A cluster placement group minimizes network latency between the two nodes, which directly accelerates SAP HANA log shipping during synchronous replication, while a larger log volume provides the I/O headroom needed to sustain high-throughput writes without throttling. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of how to optimize SAP HANA failover time in a multi-AZ deployment without sacrificing high availability—a common trap is assuming a single-AZ fix or changing instance types, both of which break HA or degrade performance. Remember the mnemonic “PLACE logs”: Placement group for low latency, Larger log volume for sustained I/O.
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 runs SAP S/4HANA on AWS in a multi-AZ deployment. The SAP HANA database is 2 TB and uses EBS gp3 volumes. During a monthly patching cycle, the primary database fails over to the secondary, but the secondary takes over 30 minutes to come online. Which TWO changes would most likely reduce the failover time? (Choose two.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the provisioned IOPS and throughput on the EBS log volumes.
HANA system replication in a multi-AZ setup can be optimized by using AWS placement groups for low latency, and increasing the log volume size to handle higher I/O during replication. Option A (single AZ) defeats HA. Option B (increasing log volume) helps sustain replication throughput. Option C (using different instance types) is not recommended. Option D (placement group) reduces network latency. Option E (EBS optimization) is already enabled by default on modern instances.
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.
✓
Increase the provisioned IOPS and throughput on the EBS log volumes.
The clue words "most likely", "primary" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✓
Place the primary and secondary HANA servers in a cluster placement group.
Why this is correct
Placement groups reduce network latency between nodes.
Clue confirmation
The clue words "most likely", "primary" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Use different EC2 instance types for primary and secondary to balance cost.
Why it's wrong here
Asymmetric instances can cause performance mismatch.
✗
Deploy all HANA nodes in the same Availability Zone to reduce network latency.
Why it's wrong here
Same AZ removes HA benefit.
✗
Enable EBS optimization on the secondary instance's EBS volumes.
Why it's wrong here
EBS optimization is automatic on current gen instances.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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 PAS-C01 NAT questions on configuration and troubleshooting.
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Increase the provisioned IOPS and throughput on the EBS log volumes. — HANA system replication in a multi-AZ setup can be optimized by using AWS placement groups for low latency, and increasing the log volume size to handle higher I/O during replication. Option A (single AZ) defeats HA. Option B (increasing log volume) helps sustain replication throughput. Option C (using different instance types) is not recommended. Option D (placement group) reduces network latency. Option E (EBS optimization) is already enabled by default on modern instances.
What should I do if I get this PAS-C01 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 PAS-C01 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "most likely", "primary". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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