- A
Application Load Balancer
Why wrong: Load balancers do not affect instance-to-instance latency.
- B
VPC endpoint
Why wrong: VPC endpoints are for private connectivity to AWS services.
- C
Cluster placement group
Cluster placement groups provide low-latency network performance within an AZ.
- D
Auto Scaling group
Why wrong: Auto Scaling does not control placement.
Question 497 of 1,733
SAP HANA Low Latency with Cluster Placement Groups
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 HANA on AWS and needs to ensure that the instance is optimally placed for low latency between the application and database tiers. Which AWS feature should be used?
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
✓
Cluster placement group
A cluster placement group is the correct choice because it provides low-latency, high-throughput network connectivity by placing instances in a single Availability Zone with non-blocking, fully bisectioned bandwidth. For SAP HANA, where the application and database tiers require sub-millisecond latency for optimal performance, a cluster placement group ensures that all instances are physically close together, minimizing network hops and jitter.
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.
- ✗
Application Load Balancer
Why it's wrong here
Load balancers do not affect instance-to-instance latency.
- ✗
VPC endpoint
Why it's wrong here
VPC endpoints are for private connectivity to AWS services.
- ✓
Cluster placement group
Why this is correct
Cluster placement groups provide low-latency network performance within an AZ.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Auto Scaling group
Why it's wrong here
Auto Scaling does not control placement.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse a cluster placement group with a spread placement group or partition placement group, assuming any placement group reduces latency, but only the cluster type is designed for low-latency, tightly coupled workloads like SAP HANA.
Detailed technical explanation
How to think about this question
Cluster placement groups use a low-latency, 10 Gbps or 25 Gbps network fabric with single-root I/O virtualization (SR-IOV) and Elastic Network Adapter (ENA) support to achieve up to 10 Gbps for TCP/IP and 20 Gbps for MPI traffic between instances. In SAP HANA scale-out or multi-tier deployments, this ensures that HANA node-to-node communication (e.g., for data replication or application-to-database queries) avoids the variability of cross-AZ or cross-rack latency, which can degrade transaction throughput and increase response times.
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
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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?
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: Cluster placement group — A cluster placement group is the correct choice because it provides low-latency, high-throughput network connectivity by placing instances in a single Availability Zone with non-blocking, fully bisectioned bandwidth. For SAP HANA, where the application and database tiers require sub-millisecond latency for optimal performance, a cluster placement group ensures that all instances are physically close together, minimizing network hops and jitter.
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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Same concept, more angles
1 more ways this is tested on PAS-C01
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is planning to migrate its SAP HANA workload to AWS. The system requires high network throughput and low latency between application and database servers. Which AWS networking feature should be used to meet these requirements?
easy- A.Create a VPC Peering connection between the application and database subnets.
- B.Use Elastic Fabric Adapter (EFA) for network connectivity.
- C.Use Enhanced Networking on all instances.
- ✓ D.Place the instances in a Cluster Placement Group.
Why D: A Cluster Placement Group (CPG) is a logical grouping of instances within a single Availability Zone that provides low-latency, high-throughput network connectivity by placing them in close physical proximity. For SAP HANA workloads requiring consistent high network throughput and low latency between application and database servers, a CPG ensures that all instances are co-located, minimizing network hops and jitter. This is the correct choice because it directly addresses the need for low-latency, high-bandwidth communication between tightly coupled components.
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Last reviewed: Jul 4, 2026
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