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Exam AWS Certified SysOps Administrator - Associate topic 1 question 418 discussion

Exam question from Amazon's AWS Certified SysOps Administrator - Associate
Question #: 418
Topic #: 1
[All AWS Certified SysOps Administrator - Associate Questions]

A company's VPC has an existing IPv4 configuration. The IPv4 configuration includes public subnets, private subnets, NAT gateways, default route tables, and ACLs.

The company associates an IPv6 CIDR block with the VPC. The company adds IPv6 allocations to each existing subnet and adds routes to the route tables. The company updates the ACLs to allow all IPv6 traffic.

Public subnets are working as expected, but private subnets are not allowing internet IPv6 connections.

What should a SysOps administrator do to allow outbound-only connectivity for the new IPv6 subnets?

  • A. Configure an egress-only internet gateway and associate it with the VPC. Create a default route in the route tables that are associated with the private subnets. Configure the default route to point to the egress-only internet gateway.
  • B. Turn on IPv6 NAT on the NAT gateways. Create a default route in the route tables that are associated with the private subnets. Configure the default route to point to the NAT gateways.
  • C. Configure a new IPv6-only NAT gateway. Create a default route in the route tables that are associated with the private subnets. Configure the default route to point to the IPv6-only NAT gateway.
  • D. Create a default route in the route tables that are associated with the private subnets. Configure the default route to point to the existing internet gateway.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by Kipalom at Jan. 1, 2024, 11:54 p.m.
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Kipalom
Highly Voted 9 months, 4 weeks ago
Selected Answer: A
An egress-only internet gateway is specifically designed for allowing outbound IPv6 traffic from instances in private subnets while preventing incoming traffic initiated by external sources.
upvoted 6 times
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Student013657
Most Recent 4 months, 3 weeks ago
Selected Answer: A
NAT does not support IPv6, Option B and C are incorrect. A: An egress-only internet gateway is a horizontally scaled, redundant, and highly available VPC component that allows outbound communication over IPv6 from instances in your VPC to the internet, and prevents the internet from initiating an IPv6 connection with your instances.
upvoted 1 times
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klayytech
7 months ago
Selected Answer: A
An egress-only internet gateway is specifically designed for allowing outbound IPv6 traffic from instances in private subnets while preventing incoming traffic initiated by external sources.
upvoted 3 times
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Learning4life
9 months, 1 week ago
Answer is A. https://docs.aws.amazon.com/vpc/latest/userguide/egress-only-internet-gateway.html
upvoted 4 times
Learning4life
9 months, 1 week ago
An egress-only internet gateway is a horizontally scaled, redundant, and highly available VPC component that allows outbound communication over IPv6 from instances in your VPC to the internet, and prevents the internet from initiating an IPv6 connection with your instances.
upvoted 2 times
...
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JIMBOB2
9 months, 4 weeks ago
Think this is A
upvoted 2 times
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