- A
Enable Enhanced Networking on all instances
Why wrong: Enhanced Networking reduces network jitter and packet loss, not latency across AZs.
- B
Create a VPC Peering connection between the application and database subnets
Why wrong: VPC Peering does not reduce latency within the same region.
- C
Use larger instance types for the application servers
Why wrong: Instance size does not directly reduce latency across AZs.
- D
Deploy SAP application servers in the same placement group and Availability Zone as the HANA database
Same placement group and AZ minimizes network hops and latency.
Question 1,656 of 1,733
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 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
✓
Deploy SAP application servers in the same placement group and Availability Zone as the HANA database
Option D is correct because deploying SAP application servers in the same placement group and Availability Zone as the HANA database minimizes network distance and reduces latency without additional cost. Option A is incorrect: Enhanced Networking improves throughput and reduces packet loss but does not eliminate cross-AZ latency. Option B is incorrect: VPC Peering is used for inter-VPC connectivity, not for reducing latency within the same VPC. Option C is incorrect: using larger instance types does not necessarily reduce network latency and would increase costs.
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.
Related concept
CIDR notation defines the prefix length.
Common exam traps
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.
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
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 D is correct because deploying SAP application servers in the same placement group and Availability Zone as the HANA database minimizes network distance and reduces latency without additional cost. Option A is incorrect: Enhanced Networking improves throughput and reduces packet loss but does not eliminate cross-AZ latency. Option B is incorrect: VPC Peering is used for inter-VPC connectivity, not for reducing latency within the same VPC. Option C is incorrect: using larger instance types does not necessarily reduce network latency and would increase costs.
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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Last reviewed: Jun 20, 2026
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