The answer is to deploy SAP application servers in the same placement group and Availability Zone as the HANA database. This is correct because placing both components within a single placement group and AZ minimizes the physical network distance between them, directly reducing latency between the SAP application and HANA database on AWS by avoiding cross-AZ data transfer. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding of how network topology, not instance size or features, drives latency; a common trap is assuming Enhanced Networking or larger instances solve cross-AZ delays, but they do not. Remember the key insight: latency is a distance problem, not a bandwidth problem—so keep your SAP and HANA neighbors in the same AZ and placement group for the lowest latency.
PAS-C01 Migration Practice Question
This PAS-C01 practice question tests your understanding of migration. 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.
An SAP system on AWS is experiencing high latency between the SAP application servers and the HANA database. The application servers are in a different Availability Zone than the database. Which change should a migration specialist recommend to reduce latency without increasing costs significantly?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Deploy SAP application servers in the same placement group and Availability Zone as the HANA database
Option C is correct because placing application servers in the same placement group and Availability Zone as the database reduces network distance and latency. Option A is wrong because using a larger instance type may not reduce latency. Option B is wrong because enabling Enhanced Networking reduces packet loss but not latency across AZs. Option D is wrong because VPC Peering does not improve latency within the same region.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Enable Enhanced Networking on all instances
Why it's wrong here
Enhanced Networking reduces network jitter and packet loss, not latency across AZs.
✗
Create a VPC Peering connection between the application and database subnets
Why it's wrong here
VPC Peering does not reduce latency within the same region.
✗
Use larger instance types for the application servers
Why it's wrong here
Instance size does not directly reduce latency across AZs.
✓
Deploy SAP application servers in the same placement group and Availability Zone as the HANA database
Why this is correct
Same placement group and AZ minimizes network hops and latency.
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
CIDR notation defines the prefix length.
Block size helps identify subnet boundaries.
Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
The required host count determines the smallest suitable subnet.
TExam Day Tips
→Write the block size before choosing the subnet.
→Check whether the question asks for hosts, subnets or a specific address range.
→Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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 block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PAS-C01 subnetting questions on CIDR, address ranges, and subnet selection.
Migration — This question tests Migration — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Deploy SAP application servers in the same placement group and Availability Zone as the HANA database — Option C is correct because placing application servers in the same placement group and Availability Zone as the database reduces network distance and latency. Option A is wrong because using a larger instance type may not reduce latency. Option B is wrong because enabling Enhanced Networking reduces packet loss but not latency across AZs. Option D is wrong because VPC Peering does not improve latency within the same region.
What should I do if I get this PAS-C01 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PAS-C01 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Question Discussion
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