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Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 876 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03
Question #: 876
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

A company hosts an application on Amazon EC2 instances that run in a single Availability Zone. The application is accessible by using the transport layer of the Open Systems Interconnection (OSI) model. The company needs the application architecture to have high availability.

Which combination of steps will meet these requirements MOST cost-effectively? (Choose two.)

  • A. Configure new EC2 instances in a different Availability Zone. Use Amazon Route 53 to route traffic to all instances.
  • B. Configure a Network Load Balancer in front of the EC2 instances.
  • C. Configure a Network Load Balancer for TCP traffic to the instances. Configure an Application Load Balancer for HTTP and HTTPS traffic to the instances.
  • D. Create an Auto Scaling group for the EC2 instances. Configure the Auto Scaling group to use multiple Availability Zones. Configure the Auto Scaling group to run application health checks on the instances.
  • E. Create an Amazon CloudWatch alarm. Configure the alarm to restart EC2 instances that transition to a stopped state.
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Suggested Answer: BD 🗳️
by xBUGx at April 4, 2024, 12:03 a.m.
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Scheldon
Highly Voted 1 year, 2 months ago
Selected Answer: BD
AnswerBD There is no information about the ports numbers and only that means that we need to use NLB, ALB is only for HTTP hence there is no point of using that solution as connection can be done via any port for exampl 4000 Autoscaling with instances in multiple AZ is the best solution. it will allow run new EC2 if it fail and in case if whole AZ will go down we will have 2nd one.
upvoted 7 times
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LuongTo
Most Recent 9 months, 3 weeks ago
C is more comprehensive than B. I voted CD
upvoted 2 times
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mk168898
10 months ago
accessible by transport layer means not by application layer means no need ALB
upvoted 2 times
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AbhiBK
11 months, 3 weeks ago
Answer is A & D - By deploying EC2 instances in multiple Availability Zones (Option A), you ensure that your application remains available even if one Availability Zone experiences an outage. This setup provides redundancy and fault tolerance.
upvoted 1 times
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muhammadahmer36
1 year, 1 month ago
Selected Answer: BD
as it mention "The application is accessible by using the transport layer" which is TCP, so no more information or reason to use ALB as well, so I will go for B+D
upvoted 3 times
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KennethNg923
1 year, 2 months ago
Selected Answer: BD
as it mention "The application is accessible by using the transport layer" which is TCP, so no more information or reason to use ALB as well, so I will go for B+D
upvoted 3 times
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sandordini
1 year, 3 months ago
Selected Answer: BD
No word about the HTTP/application layer, only OSI 4 - TCP > B, an NLB should be enough D: for Autoscaling.
upvoted 4 times
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Tanidanindo
1 year, 4 months ago
Selected Answer: BD
transport layer means just NLB.
upvoted 3 times
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Awsbeginner87
1 year, 4 months ago
Selected Answer: BD
B- since network layer operates at layer 4 i.e transport layer D- for hHA
upvoted 2 times
Awsbeginner87
1 year, 4 months ago
Edited-D option for HA
upvoted 2 times
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xBUGx
1 year, 4 months ago
Selected Answer: BD
question says the application is running on Transport Layer. i dont think there is need for ALB
upvoted 2 times
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C (25%)
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