- A
The propagated route from VPC
Why wrong: Propagated routes have lower precedence.
- B
The static route to on-premises
Static routes have higher precedence than propagated.
- C
Both routes will be used with ECMP
Why wrong: ECMP not used between static and propagated.
- D
The route with the shortest AS_PATH
Why wrong: AS_PATH is not considered for static routes.
Question 1,528 of 1,705
ANS-C01 Network Implementation Practice Question
This ANS-C01 practice question tests your understanding of network implementation. 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.
A company has a VPC with a transit gateway (TGW) connected to multiple VPCs and an on-premises network via AWS Direct Connect. The on-premises network advertises a specific prefix 10.0.0.0/16. A VPC attachment in the same region also advertises the same prefix. The TGW route table has the on-premises route as static and the VPC route as propagated. Which route will be used for traffic destined to 10.0.0.5?
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
✓
The static route to on-premises
When a transit gateway (TGW) receives both a static route and a propagated route for the same prefix, the static route takes precedence regardless of the propagation source. This is because static routes have a higher administrative distance (lower priority number) than dynamically learned routes. Therefore, traffic destined to 10.0.0.5 will be forwarded via the Direct Connect attachment to the on-premises network.
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.
- ✗
The propagated route from VPC
Why it's wrong here
Propagated routes have lower precedence.
- ✓
The static route to on-premises
Why this is correct
Static routes have higher precedence than propagated.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Both routes will be used with ECMP
Why it's wrong here
ECMP not used between static and propagated.
- ✗
The route with the shortest AS_PATH
Why it's wrong here
AS_PATH is not considered for static routes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The ANS-C01 exam often tests the misconception that propagated routes from VPC attachments are preferred over static routes, or that ECMP applies when two routes for the same prefix exist, but the key trap is that static routes always override propagated routes in a TGW route table regardless of the source.
Detailed technical explanation
How to think about this question
Under the hood, AWS Transit Gateway uses a route table with a priority system where static routes (manually added) have a higher precedence than propagated routes (learned via attachments). This is analogous to a static route having an administrative distance of 1 versus a dynamic route's default distance of 100 in traditional routing. In a real-world scenario, if the on-premises network advertises a more specific prefix (e.g., 10.0.0.0/24) via BGP over Direct Connect, that more specific route would be preferred over the static /16, but here both routes are for the exact same prefix.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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.
- →
Network Implementation — study guide chapter
Learn the concepts, then practise the questions
- →
Network Implementation practice questions
Targeted practice on this topic area only
- →
All ANS-C01 questions
1,705 questions across all exam domains
- →
AWS Certified Advanced Networking Specialty ANS-C01 study guide
Full concept coverage aligned to exam objectives
- →
ANS-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related ANS-C01 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Network Management and Operations practice questions
Practise ANS-C01 questions linked to Network Management and Operations.
Network Security, Compliance and Governance practice questions
Practise ANS-C01 questions linked to Network Security, Compliance and Governance.
Network Design practice questions
Practise ANS-C01 questions linked to Network Design.
Network Implementation practice questions
Practise ANS-C01 questions linked to Network Implementation.
ANS-C01 fundamentals practice questions
Practise ANS-C01 questions linked to ANS-C01 fundamentals.
ANS-C01 scenario practice questions
Practise ANS-C01 questions linked to ANS-C01 scenario.
ANS-C01 troubleshooting practice questions
Practise ANS-C01 questions linked to ANS-C01 troubleshooting.
Practice this exam
Start a free ANS-C01 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Implementation — This question tests Network Implementation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The static route to on-premises — When a transit gateway (TGW) receives both a static route and a propagated route for the same prefix, the static route takes precedence regardless of the propagation source. This is because static routes have a higher administrative distance (lower priority number) than dynamically learned routes. Therefore, traffic destined to 10.0.0.5 will be forwarded via the Direct Connect attachment to the on-premises network.
What should I do if I get this ANS-C01 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 →
Keep practising
More ANS-C01 practice questions
- A financial services company has a VPC with a public subnet and a private subnet. EC2 instances in the private subnet ne…
- A company is designing a network security architecture for a multi-account environment using AWS Transit Gateway. The se…
- A company is using AWS Direct Connect to connect its on-premises network to AWS. The company wants to encrypt all traffi…
- A company uses AWS Transit Gateway to connect multiple VPCs and on-premises networks via AWS Site-to-Site VPN. The secur…
- A company runs a web application on EC2 instances behind an Application Load Balancer (ALB). The application must be acc…
- A global e-commerce company uses a hub-and-spoke network topology with a transit VPC in us-east-1. Each spoke VPC has an…
Last reviewed: Jul 4, 2026
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.
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.