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Amazon ANS-C01 Exam - Topic 1 Question 3 Discussion

A company is hosting an application on Amazon EC2 instances behind a Network Load Balancer (NLB). A solutions architect added EC2 instances in a second Availability Zone to improve the availability of the application. The solutions architect added the instances to the NLB target group.The company's operations team notices that traffic is being routed only to the instances in the first Availability Zone.What is the MOST operationally efficient solution to resolve 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

Amazon ANS-C01 Exam - Topic 1 Question 3 Discussion

Actual exam question for Amazon's ANS-C01 exam
Question #: 3
Topic #: 1
[All ANS-C01 Questions]

A company is hosting an application on Amazon EC2 instances behind a Network Load Balancer (NLB). A solutions architect added EC2 instances in a second Availability Zone to improve the availability of the application. The solutions architect added the instances to the NLB target group.

The company's operations team notices that traffic is being routed only to the instances in the first Availability Zone.

What is the MOST operationally efficient solution to resolve this issue?

Show Suggested Answer Hide Answer
Suggested Answer: A

When adding instances in a new Availability Zone to an existing Network Load Balancer (NLB), it is important to ensure that the new Availability Zone is enabled on the NLB. This will allow traffic to be routed to instances in both Availability Zones. This can be done by editing the settings of the NLB and selecting the new Availability Zone from the list of available zones.


by Kiley at Mar 22, 2023, 03:59 AM

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Hershel
10 months ago
Are we sure the NLB isn't already set up for both AZs?
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Denny
10 months ago
Definitely need to enable the AZ on the NLB. Makes sense!
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Shawnta
10 months ago
Wait, why would you create a new NLB? Seems unnecessary.
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Elke
11 months ago
I think creating a new target group is overkill.
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Jarvis
11 months ago
Just enable the new AZ on the NLB, right?
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Jerry
11 months ago
I wonder if creating a new NLB would be overkill. I feel like we should just enable the AZ on the existing NLB instead.
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Odette
11 months ago
I think enabling the new Availability Zone on the NLB is the most straightforward solution. It seems like the simplest fix to get traffic balanced.
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Delisa
11 months ago
I'm a bit unsure about this one. I feel like I've seen questions where creating a new target group was the right answer, but I can't recall the specifics.
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Xochitl
11 months ago
I remember reading that NLBs need to have all Availability Zones enabled to distribute traffic properly. So, I think option A makes sense.
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Lorean
11 months ago
I recall that target groups are important for routing traffic, so option D could be a possibility, but I’m not confident it’s the best solution.
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Brittni
11 months ago
I practiced a similar question where enabling proxy protocol was mentioned, but I don't think that's relevant here. Option C seems off.
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Rosita
11 months ago
I'm not entirely sure, but I think creating a new NLB for the second AZ seems unnecessary. It feels like option B might not be the most efficient.
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Lorrine
11 months ago
I remember something about enabling Availability Zones for load balancers, so maybe option A is the right choice?
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Linwood
11 months ago
This seems straightforward - the question is asking for the available app formats, so I'll need to carefully read through the options and select the two that meet the company's device policies.
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Sharika
11 months ago
Okay, let's see here. I think the key is to get back to the previous hotfix, so I'm leaning towards option C or B. I'll need to double-check the details, but those seem like the most straightforward approaches.
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Mayra
11 months ago
Hmm, this is a tricky one. I know the CUSUM and EWMA charts are generally more sensitive to small shifts, but I'm not familiar with the EWQR chart. I'll have to think this through carefully.
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Telma
11 months ago
Hmm, I'm a bit confused. I'm not sure if global or local buffering is the right approach here. Maybe I should review the Fibre Channel and Cisco MDS configuration details again.
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Francene
11 months ago
Based on the question, I believe the Web Client Session performance counter is the one I should use to monitor the number of active users. I feel pretty good about this answer.
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