Question 26 of 585 from exam ANS-C01: AWS Certified Advanced Networking - Specialty

Question 26 of 585 from exam ANS-C01: AWS Certified Advanced Networking - Specialty

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Question

You are trying out an AWS VPN managed connection.

You have created the VPN to your on-premises location.

You earlier were also using an Internet gateway.

You've added the VPN connection to your routing table and enabled propagation.

Below is the Route table. Based on the route table, which of the following is TRUE?

Destination Target 10.0.0.0/16 Local 172.31.0.0/24 vgw-1a2b3c4d (propagated) 172.31.0.0/24 | igw-11aa22bb

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

Answer - B.

Such an example is given in the AWS Documentation.

Option A is incorrect because of the way traffic is routed based on priority.

Option C is incorrect because there is no route defined for such routing.

Option D is incorrect because you can have multiple routes with the same destination.

For more information on VPN Routing priority, please refer to the below URL:

https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_VPN.html#vpn-route-priority
In this example, your route table has a static route to an internet gateway (that you added manually), and a propagated route to a virtual private gateway. Both routes have a destination of 172.31.0.0/24. In this case, all traffic destined for 172.31.0.0/24 is routed to the internet gateway — it is a static route and therefore takes priority over the propagated route. Destination Target 10.0.0.0/16 Local 172.31.0.0/24 vgw-1a2b3c4d (propagated) 172.31.0.0/24 | igw-11aa22bb
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