ANS-C01 Network Design Practice Question
Which TWO of the following are valid components of an AWS Transit Gateway design for connecting multiple VPCs and on-premises networks?
⚠ Common exam trap
AWS often tests the misconception that a Transit Gateway endpoint attaches to a subnet like a VPC endpoint, but in reality, Transit Gateway attachments are VPC-level constructs that require a subnet in each AZ for the attachment's elastic network interfaces.
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
✓
Transit Gateway route table
A Transit Gateway route table is a fundamental component that controls how traffic is routed between attachments (VPCs, VPNs, Direct Connect) within the Transit Gateway. Each attachment is associated with exactly one route table, and route propagation enables dynamic learning of routes across the network.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VPC Endpoint Gateway
Why it's wrong here
VPC Endpoints are for accessing AWS services, not part of Transit Gateway.
- ✗
Transit Gateway endpoint attached to a subnet in a VPC
Why it's wrong here
Transit Gateway attachments are at the VPC level, not endpoint in a subnet.
- ✗
Direct Connect Gateway associated with a Transit Gateway
Why it's wrong here
Direct Connect Gateway is a separate entity; it can be associated with a Transit Gateway but is not a component of the Transit Gateway itself.
- ✓
Transit Gateway route table
Why this is correct
Route tables control traffic between attachments.
- ✓
Transit Gateway peering attachment
Why this is correct
Peering attachments connect transit gateways across regions.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-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 ANS-C01 exam.