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.
An SAP Basis administrator notices that the SAP application server on an EC2 instance is experiencing intermittent high latency when writing to the SAP HANA database. The HANA database is on a separate EC2 instance in the same VPC and Availability Zone. Which configuration change is most likely to resolve the issue?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable Jumbo Frames on the network interfaces
The intermittent high latency when writing to SAP HANA is likely caused by network packet fragmentation. Enabling Jumbo Frames (MTU 9001) on the network interfaces of both the SAP application server and the HANA database EC2 instances reduces the number of packets required for large data transfers, lowers CPU overhead for packet processing, and improves throughput. This is a standard recommendation for SAP on AWS to optimize network performance between application and database layers.
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.
✗
Launch the instances in a cluster placement group
Why it's wrong here
Placement groups are for low-latency within a group, but instances are already in same AZ; jumbo frames are more effective.
✗
Enable EBS optimization on both instances
Why it's wrong here
EBS optimization is for storage performance, not network latency between instances.
✗
Change the Elastic Network Adapter (ENA) to SR-IOV
Why it's wrong here
ENA is the modern standard; SR-IOV is older and may not improve latency.
✓
Enable Jumbo Frames on the network interfaces
Why this is correct
Jumbo Frames reduce overhead for large packets, improving network throughput and reducing latency for HANA communication.
Clue confirmation
The clue word "most likely" 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
The trap here is that candidates often confuse network performance issues with compute or storage optimizations, leading them to choose EBS optimization or placement groups, when the real fix is a simple MTU adjustment to eliminate packet fragmentation overhead.
Detailed technical explanation
How to think about this question
Jumbo Frames enable an MTU of 9001 bytes on AWS, compared to the standard 1500 bytes, which reduces the number of packets for a given data transfer by up to 6x. This is particularly beneficial for SAP HANA workloads that involve large batch writes or data replication, as it decreases CPU utilization for packet processing and avoids fragmentation at the network layer. In practice, enabling Jumbo Frames requires configuring both the EC2 instance's OS (e.g., 'ip link set eth0 mtu 9001') and the VPC's network ACLs or security groups to allow the larger packets, and it is a common step in AWS SAP HANA deployment guides.
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: Enable Jumbo Frames on the network interfaces — The intermittent high latency when writing to SAP HANA is likely caused by network packet fragmentation. Enabling Jumbo Frames (MTU 9001) on the network interfaces of both the SAP application server and the HANA database EC2 instances reduces the number of packets required for large data transfers, lowers CPU overhead for packet processing, and improves throughput. This is a standard recommendation for SAP on AWS to optimize network performance between application and database layers.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". 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?
Read the scenario before looking for a memorised answer.
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Question Discussion
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