Exam AWS Certified Solutions Architect - Professional topic 1 question 914 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional

Question #: 914
Topic #: 1

[All AWS Certified Solutions Architect - Professional Questions]

A solutions architect has created a single VPC on AWS. The VPC has one internet gateway and one NAT gateway. The VPC extends across three Availability
Zones. Each Availability Zone includes one public subnet and one private subnet. The three private subnets contain Amazon EC2 instances that must be able to connect to the internet.
Which solution will increase the network resiliency of this architecture?

A. Add two NAT gateways so that each Availability Zone has a NAT gateway. Configure a route table for each private subnet to send traffic to the NAT gateway in the subnet's Availability Zone.
B. Add two NAT gateways so that each Availability Zone has a NAT gateway. Configure a route table for each public subnet to send traffic to the NAT gateway in the subnet's Availability Zone.
C. Add two internet gateways so that each Availability Zone has an internet gateway. Configure a route table for each private subnet to send traffic to the internet gateway in the subnet's Availability Zone.
D. Add two internet gateways so that each Availability Zone has an internet gateway. Configure a route table for each public subnet to send traffic to the internet gateway in the subnet's Availability Zone.

Show Suggested Answer

Suggested Answer: A 🗳️

by SGES at Sept. 6, 2022, 3:58 p.m.

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janvandermerwer

2 years, 7 months ago

Selected Answer: A

A - "Most correct" - You could even add backup Routes to the alternate AZs NAT gateways for increased resiliency. B - Public subnets do not require a route to NAT gateway (meant to be the other way around) C - not necessary - 1 IGW per VPC D - not necessary - 1 IGW per VPC

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