DOP-C02 · Question #4
A company requires that its internally facing web application be highly available. The architecture is made up of one Amazon EC2 web server instance and one NAT instance that provides outbound…
The correct answer is B. Create additional EC2 instances spanning multiple Availability Zones. Add an Application Load D. Replace the NAT instance with a NAT gateway in each Availability Zone. Update the route tables. A NAT Gateway is spun up in a single subnet that lives in a AZ. So you cannot build a NAT GW that spans mulitple AZ's. You will need to build a NAT GW in EACH AZ to succeed.
Question
A company requires that its internally facing web application be highly available. The architecture is made up of one Amazon EC2 web server instance and one NAT instance that provides outbound internet access for updates and accessing public data. Which combination of architecture adjustments should the company implement to achieve high availability? (Choose two.)
Options
- AAdd the NAT instance to an EC2 Auto Scaling group that spans multiple Availability Zones.
- BCreate additional EC2 instances spanning multiple Availability Zones. Add an Application Load
- CConfigure an Application Load Balancer in front of the EC2 instance. Configure Amazon
- DReplace the NAT instance with a NAT gateway in each Availability Zone. Update the route tables.
- EReplace the NAT instance with a NAT gateway that spans multiple Availability Zones. Update the
How the community answered
(48 responses)- A4% (2)
- B81% (39)
- C4% (2)
- E10% (5)
Explanation
A NAT Gateway is spun up in a single subnet that lives in a AZ. So you cannot build a NAT GW that spans mulitple AZ's. You will need to build a NAT GW in EACH AZ to succeed.
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