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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 239 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 239
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A company has 10 Amazon EC2 instances that run web server software in a production VPC. The company also has 10 web servers that run in an on-premises data center. The company has a 10 Gbps AWS Direct Connect connection between the on-premises data center and the production VPC. The data center uses the 10.100.0.0/20 CIDR block.

The company needs to implement a load balancing solution that receives HTTPS traffic from thousands of external users. The solution must distribute the traffic across the web servers on AWS and the web servers in the data center. Regardless of the location of the web servers, HTTPS requests must go to the same web server for the duration of the session.

Which solution will meet these requirements?

  • A. Deploy a Network Load Balancer (NLB) in the production VPC. Create one target group for the EC2 Instances and a second target group for the on-premises servers. Specify IP as the target type. Register the EC2 instances and the on-premises servers with the target groups. Enable connection draining on the NLB.
  • B. Deploy an Application Load Balancer (ALB) in the production VPC. Create one target group for the EC2 Instances and a second target group for the on-premises servers. Specify IP as the target type. Register the EC2 instances and the on-premises servers with the target groups. Enable application-based sticky sessions on the ALB.
  • C. Deploy a Network Load Balancer (NLB) in the production VPCreate one target group for the EC2 Instances and a second target group for the on-premises servers. Specify instance as the target type. Register the EC2 instances and the on-premises servers with the target groups. Enable sticky sessions on the NLB.
  • D. Deploy an Application Load Balancer (ALB) in the production VPC. Create one target group for the EC2 Instances and a second target group for the on-premises servers. Specify instance as the target type. Register the EC2 instances and the on-premises servers with the target groups. Enable application-based sticky sessions on the ALB.
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Suggested Answer: B 🗳️
by secdaddy at Jan. 31, 2025, 11:13 a.m.
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zanhsieh
3 days, 7 hours ago
Selected Answer: B
NLB can't handle HTTPS directly and no sticky session nor session persistence, so AC are out. EC2 target group can't register on-prem servers, so CD dropped. Therefore only B left.
upvoted 1 times
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secdaddy
1 month, 2 weeks ago
Selected Answer: B
ALB for sticky https & IP not instance type as have onprem
upvoted 1 times
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