Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company runs a multi-region application on AWS with separate VPCs in us-east-1 and eu-west-1. The company also has an on-premises data center connected to AWS via AWS Direct Connect. The network team wants to simplify the routing topology so that traffic between all VPCs and the on-premises network flows through a central hub. They need a service that can manage many VPC attachments and provide transitive routing across all connected networks. Which AWS service should the network team use?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
AWS Transit Gateway
AWS Transit Gateway is a network transit hub that connects VPCs, VPN connections, and AWS Direct Connect connections. It supports transitive routing, allowing all attached networks to communicate through a single gateway, which simplifies network architecture.
B
Distractor review
Amazon Route 53
Amazon Route 53 is a scalable Domain Name System (DNS) web service. It resolves domain names to IP addresses but does not provide network routing between VPCs or on-premises networks.
C
Distractor review
AWS Direct Connect Gateway
AWS Direct Connect Gateway allows a Direct Connect connection to access VPCs in any AWS Region, but it does not provide transitive routing between those VPCs. For VPC-to-VPC communication, additional components like Transit Gateway or VPC peering are needed.
D
Distractor review
AWS PrivateLink
AWS PrivateLink provides private connectivity between VPCs and AWS services, or between VPCs and on-premises applications, but it does not offer transitive routing across multiple VPCs or act as a central hub for network traffic.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer needs to launch a test server for a new application prototype. The developer logs into the AWS Management Console, selects an Amazon EC2 instance type, configures the security group, and starts the instance. The instance is running within two minutes, and the developer did not need to submit a formal request to the company's IT procurement team or wait for approval from a cloud administrator. Which essential characteristic of cloud computing does this scenario best demonstrate?
Question 2
A solutions architect is planning a new web application on AWS. The workload will include 3 Amazon EC2 instances (t3.medium) running 24/7, an Application Load Balancer, and an Amazon RDS for MySQL db.t3.small database. The architect needs to estimate the monthly cost for the first year, considering different purchasing options (On-Demand, 1-year All Upfront Reserved Instance, and Compute Savings Plan). Which AWS tool should the architect use to create this estimate?
Question 3
A company's development team frequently needs temporary test environments. A developer can log into the AWS Management Console, select an Amazon EC2 instance type, configure storage, and launch the instance within minutes without any interaction with the IT infrastructure team. This capability is an example of which essential characteristic of cloud computing?
Question 4
A company's finance team needs to analyze AWS spending in detail. They require a report that includes hourly cost data for each AWS service, each individual resource (e.g., a specific EC2 instance), and any cost allocation tags applied. The team plans to export this data to an Amazon S3 bucket and then import it into a custom business intelligence (BI) analytics dashboard. Which AWS tool should the finance team use to generate this level of detailed cost data?
Question 5
A company uses AWS for its development environment. The finance team wants to set a monthly budget of $10,000. They want to receive an email notification when the actual costs reach 80% of the budget ($8,000) and again when costs exceed the budget. The team needs a managed AWS service that can automatically send these alerts without requiring custom code or third-party tools. Which AWS service should the team use?
Question 6
A company uses AWS Organizations to manage multiple accounts. The security team needs to enforce a policy that restricts SSH access (port 22) from the internet (0.0.0.0/0) in all VPCs across all accounts. The team wants to centrally define the allowed rules and automatically apply them to newly created VPCs and security groups, while also automatically remediating any existing non-compliant security groups. Which AWS service should the team use?
FAQ
Questions learners often ask
What does this CLF-C02 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: AWS Transit Gateway — AWS Transit Gateway acts as a central hub that connects VPCs, VPN connections, and Direct Connect connections. It provides transitive routing, so traffic can flow between any attached networks without needing individual peering connections. Amazon Route 53 is a DNS service and does not handle network routing. AWS Direct Connect Gateway allows you to connect a Direct Connect connection to multiple VPCs in different regions, but it does not provide transitive routing between those VPCs; you would still need Transit Gateway or VPC peering for VPC-to-VPC traffic. AWS PrivateLink provides private connectivity to services hosted on AWS, not transitive routing between multiple networks.
What should I do if I get this CLF-C02 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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