Amazon Web Services AWS Certified Solutions Architect - Professional SAP-C02 Question # 73 Topic 8 Discussion
SAP-C02 Exam Topic 8 Question 73 Discussion:
Question #: 73
Topic #: 8
A VPC spans three Availability Zones, each with public and private subnets. One NAT gateway and one internet gateway exist. Private EC2 instances must connect to the internet.
A.
Add two more NAT gateways (one per AZ). Configure each private subnet to use its AZ’s NAT gateway.
B.
Add two more NAT gateways and configure public subnets.
C.
Add internet gateways per AZ and route private subnets.
D.
Add internet gateways per AZ and configure public subnets.
To improveresiliency and fault tolerance, place aNAT Gateway in each AZ, and route each private subnet to its local NAT gateway. This ensures local AZ failure won't break internet access.
VPC NAT Gateway High Availability
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