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Answer: Enable the new Availability Zone on the NLB
The issue described indicates that the Network Load Balancer (NLB) is not distributing traffic to the EC2 instances in the second Availability Zone. This is likely because the new Availability Zone has not been enabled on the NLB. Enabling the new Availability Zone on the NLB (Option A) is the most operationally efficient solution because it allows the NLB to recognize and distribute traffic to the EC2 instances in the second Availability Zone without the need for creating additional resources or configurations. Creating a new NLB (Option B) or a new target group (Option D) would introduce unnecessary complexity and management overhead. Enabling proxy protocol (Option C) is unrelated to the issue of traffic distribution across Availability Zones and would not resolve the problem.
Author: LeetQuiz Editorial Team
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A company is running an application on Amazon EC2 instances behind a Network Load Balancer (NLB). To enhance application availability, a solutions architect added EC2 instances in a second Availability Zone and registered them with the NLB target group. However, the operations team observes that traffic is only being directed to instances in the first Availability Zone.
What is the MOST operationally efficient solution to address this issue?
A
Enable the new Availability Zone on the NLB
B
Create a new NLB for the instances in the second Availability Zone
C
Enable proxy protocol on the NLB
D
Create a new target group with the instances in both Availability Zones
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