Courseiva
← SOA-C02
Full test
Question 1,367 of 1,546
Networking and Content Delivery →hardMultiple ChoiceObjective-mapped

Quick Answer

The answer is to create multiple Transit Gateway route tables, one for each group of VPCs that need to communicate, and associate each VPC attachment with the appropriate table while adding static routes to the on-premises network in every table. This works because Transit Gateway supports multiple route tables, enabling you to isolate VPC attachments with overlapping CIDRs from each other while still providing a common path to on-premises—the route tables simply do not propagate routes between isolated groups. On the SOA-C02 exam, this scenario tests your understanding that a single Transit Gateway route table would cause routing conflicts or unintended connectivity between overlapping CIDRs; the common trap is assuming you need separate Transit Gateways or NAT devices. A key memory tip: think of each route table as a separate “room” with its own door to on-premises, but no doors between rooms—isolated VPCs share the hallway to on-premises but cannot enter each other’s space.

SOA-C02 Networking and Content Delivery Practice Question

This SOA-C02 practice question tests your understanding of networking and content delivery. 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.

A company has multiple VPCs in the same AWS account and Region, each with overlapping CIDR blocks (10.0.0.0/16). The SysOps administrator needs to establish connectivity between all VPCs and the on-premises network via AWS Transit Gateway. Additionally, certain VPCs must be isolated from each other while still reaching on-premises. How should the administrator configure the Transit Gateway to meet these requirements?

Question 1hardmultiple choice
Review the full subnetting walkthrough →

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

✓

Create multiple Transit Gateway route tables: one for each group of VPCs that need to communicate, and associate each VPC attachment with the appropriate route table. Add static routes to the on-premises network in each route table.

Option B is correct because AWS Transit Gateway supports multiple route tables, allowing you to isolate VPC attachments from each other while still providing a common route to the on-premises network. By creating separate route tables for each group of VPCs that need to communicate, and associating the appropriate VPC attachments with those tables, you can enforce isolation between groups. Adding static routes to the on-premises network in each route table ensures all VPCs can reach on-premises, even when they cannot communicate with each other.

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.

  • ✗

    Create a single Transit Gateway route table and add routes for all VPCs and the on-premises network.

    Why it's wrong here

    Incorrect. Overlapping CIDRs would cause routing conflicts, and a single route table cannot isolate traffic between VPCs.

  • ✓

    Create multiple Transit Gateway route tables: one for each group of VPCs that need to communicate, and associate each VPC attachment with the appropriate route table. Add static routes to the on-premises network in each route table.

    Why this is correct

    Correct. This allows isolation by route table, and overlapping CIDRs are handled by attaching VPCs to separate route tables. On-premises routes can be added to each.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    Use VPC peering instead of Transit Gateway to connect VPCs, and use Direct Connect Gateway for on-premises connectivity.

    Why it's wrong here

    Incorrect. VPC peering does not support overlapping CIDRs, and it does not provide a hub-and-spoke architecture with isolation.

  • ✗

    Configure VPN connections between each VPC and the on-premises network, bypassing Transit Gateway.

    Why it's wrong here

    Incorrect. This adds complexity and does not solve inter-VPC isolation or overlapping CIDR issues.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates assume a single Transit Gateway route table is sufficient for all VPCs, overlooking the need for isolation between specific VPC groups when overlapping CIDRs are present.

Detailed technical explanation

How to think about this question

Transit Gateway uses route tables to control traffic between attachments; each attachment can be associated with exactly one route table, and route propagation can be enabled per attachment to automatically populate routes. When VPCs have overlapping CIDRs, you must rely on static routes or network segmentation (e.g., using separate route tables) because overlapping IPs cannot be uniquely resolved in a single routing table. In practice, you might also use Transit Gateway Network Manager to monitor and troubleshoot routing across multiple route tables and attachments.

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 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

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.

Related practice questions

Related SOA-C02 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Monitoring, Logging, and Remediation practice questions

Practise SOA-C02 questions linked to Monitoring, Logging, and Remediation.

Reliability and Business Continuity practice questions

Practise SOA-C02 questions linked to Reliability and Business Continuity.

Deployment, Provisioning, and Automation practice questions

Practise SOA-C02 questions linked to Deployment, Provisioning, and Automation.

Security and Compliance practice questions

Practise SOA-C02 questions linked to Security and Compliance.

Networking and Content Delivery practice questions

Practise SOA-C02 questions linked to Networking and Content Delivery.

Cost and Performance Optimization practice questions

Practise SOA-C02 questions linked to Cost and Performance Optimization.

SOA-C02 fundamentals practice questions

Practise SOA-C02 questions linked to SOA-C02 fundamentals.

SOA-C02 scenario practice questions

Practise SOA-C02 questions linked to SOA-C02 scenario.

SOA-C02 troubleshooting practice questions

Practise SOA-C02 questions linked to SOA-C02 troubleshooting.

Practice this exam

Start a free SOA-C02 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions20 questions30 questions50 questionsTimed 30
SOA-C02 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this SOA-C02 question test?

Networking and Content Delivery — This question tests Networking and Content Delivery — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Create multiple Transit Gateway route tables: one for each group of VPCs that need to communicate, and associate each VPC attachment with the appropriate route table. Add static routes to the on-premises network in each route table. — Option B is correct because AWS Transit Gateway supports multiple route tables, allowing you to isolate VPC attachments from each other while still providing a common route to the on-premises network. By creating separate route tables for each group of VPCs that need to communicate, and associating the appropriate VPC attachments with those tables, you can enforce isolation between groups. Adding static routes to the on-premises network in each route table ensures all VPCs can reach on-premises, even when they cannot communicate with each other.

What should I do if I get this SOA-C02 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.

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 →

How Courseiva writes practice questions · Editorial policy

Keep practising

More SOA-C02 practice questions

Browse all SOA-C02 questions →

Last reviewed: Jun 11, 2026

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.

Loading comments…

Sign in to join the discussion.

This SOA-C02 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 SOA-C02 exam.