Free Amazon ANS-C01 Actual Exam Questions - Question 11 Discussion
premises data centers. The company has set up AWS Direct Connect connections between the on-
premises data centers and AWS. From each location, the company is using a transit VIF that connects
to a Direct Connect gateway that is associated with a transit gateway.
The network engineer must ensure that traffic from AWS to the data centers is routed first to the
primary data center. The traffic should be routed to the failover data center only in the case of an
outage.
Which solution will meet these requirements?
A/C? A makes sense since 7224:7100 is for preferred routes, ensuring primary data center traffic first. But I’m checking C because those values might represent similar preferences in some setups.
B vs A, AWS docs show 7300 prefers routes, so primary should get 7300 tag.
It’s A. AWS uses 7224:7100 to prefer routes and 7224:7300 to mark backup routes, so tagging the primary DC with 7100 fits the requirement better than B or the others.
A, because 7224:7100 is commonly for preferred routes and 7224:7300 for backup.
B looks better to me, since 7224:7300 typically marks preferred routes, so setting the primary DC with that makes sense. The failover should get 7224:7100 as backup.
A imo, because 7224:7100 is usually the community for backup routes and 7224:7300 for preferred routes in AWS Direct Connect. Setting the primary data center to 7224:7100 would make it the backup, which is opposite of what we want. So swapping them as in A ensures the primary gets preferred routing while failover takes over only if primary fails. The other options mix these community tags incorrectly or use tags not typically recommended for primary/backup situations.
Probably B, since 7224:7300 is for preferred and 7224:7100 for backup per AWS docs.
Option D looks right since using 7224:9100 for primary and 7224:9300 for failover matches AWS guidelines for preferred routing through Direct Connect. It makes sure traffic prefers the primary DC unless it’s down.