This PAS-C01 practice question tests your understanding of design of sap workloads on aws. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 running SAP ERP on AWS. The SAP application servers are in private subnets, and the database is in a separate private subnet. The company needs to allow the application servers to communicate with the database. Which AWS networking component should be configured to allow this traffic?
VPC Peering connection between subnets.
Why wrong: VPC Peering is for different VPCs.
Internet Gateway
Why wrong: Internet Gateway provides internet access, not internal communication.
Network ACL with inbound rules for the database subnet.
Why wrong: Network ACL is stateless and less secure.
Security Group rules allowing traffic between the security groups.
Security Groups allow stateful traffic between instances.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Security Group rules allowing traffic between the security groups.
Option B is correct because Security Groups act as a virtual firewall for EC2 instances, and adding a rule to the database security group that allows inbound traffic from the application server security group is the recommended way to control traffic between instances. Option A is incorrect because an Internet Gateway is for internet access. Option C is incorrect because a Network ACL is stateless and more complex to manage. Option D is incorrect because VPC Peering is for connecting different VPCs.
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
For each option: why learners choose it and why it is or isn't the right answer here.
VPC Peering connection between subnets.
Why it's wrong here
VPC Peering is for different VPCs.
Internet Gateway
Why it's wrong here
Internet Gateway provides internet access, not internal communication.
Network ACL with inbound rules for the database subnet.
Why it's wrong here
Network ACL is stateless and less secure.
Security Group rules allowing traffic between the security groups.
Why this is correct
Security Groups allow stateful traffic between instances.
Related concept
CIDR notation defines the prefix length.
Common exam traps
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
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.
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
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
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.
Design of SAP Workloads on AWS — study guide chapter
Learn the concepts, then practise the questions
Design of SAP Workloads on AWS practice questions
Targeted practice on this topic area only
All PAS-C01 questions
1,733 questions across all exam domains
AWS Certified SAP on AWS Specialty PAS-C01 study guide
Full concept coverage aligned to exam objectives
PAS-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise PAS-C01 questions linked to Design of SAP Workloads on AWS.
Practise PAS-C01 questions linked to Technology.
Practise PAS-C01 questions linked to Migration.
Practise PAS-C01 questions linked to Operations and Maintenance.
Practise PAS-C01 questions linked to PAS-C01 fundamentals.
Practise PAS-C01 questions linked to PAS-C01 scenario.
Practise PAS-C01 questions linked to PAS-C01 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — CIDR notation defines the prefix length..
The correct answer is: Security Group rules allowing traffic between the security groups. — Option B is correct because Security Groups act as a virtual firewall for EC2 instances, and adding a rule to the database security group that allows inbound traffic from the application server security group is the recommended way to control traffic between instances. Option A is incorrect because an Internet Gateway is for internet access. Option C is incorrect because a Network ACL is stateless and more complex to manage. Option D is incorrect because VPC Peering is for connecting different VPCs.
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.
CIDR notation defines the prefix length.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 20, 2026
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.