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Exam AWS Certified SysOps Administrator - Associate topic 1 question 456 discussion

Exam question from Amazon's AWS Certified SysOps Administrator - Associate
Question #: 456
Topic #: 1
[All AWS Certified SysOps Administrator - Associate Questions]

A company deploys a new application on three Amazon EC2 instances across three Availability Zones. The company uses a Network Load Balancer (NLB) to route traffic to the EC2 instances. A SysOps administrator must implement a solution so that the EC2 instances allow traffic from only the NLB.

What should the SysOps administrator do to meet these requirements with the LEAST operational overhead?

  • A. Configure the security group that is associated with the EC2 instances to allow traffic from only the security group that is associated with the NLB
  • B. Configure the security group that is associated with the EC2 instances to allow traffic from only the elastic network interfaces that are associated with the NLB
  • C. Create a network ACL Associate the network ACL with the application subnets. Configure the network ACL to allow inbound traffic from only the CIDR ranges of the NLB
  • D. Use a third-party firewall solution that is installed on a separate EC2 instance. Configure a firewall rule that allows traffic to the application's EC2 instances from only the subnets where the NLB is deployed.
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Suggested Answer: A 🗳️
by Toni2936 at Sept. 7, 2024, 1:15 a.m.
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getadroit
7 months ago
https://docs.aws.amazon.com/elasticloadbalancing/latest/network/load-balancer-security-groups.html
upvoted 2 times
Aamee
6 months ago
Option A this link refers to then..
upvoted 1 times
...
...
Toni2936
7 months, 3 weeks ago
Selected Answer: A
the answer is A
upvoted 2 times
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