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Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 757 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03
Question #: 757
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

A company is running a legacy system on an Amazon EC2 instance. The application code cannot be modified, and the system cannot run on more than one instance. A solutions architect must design a resilient solution that can improve the recovery time for the system.

What should the solutions architect recommend to meet these requirements?

  • A. Enable termination protection for the EC2 instance.
  • B. Configure the EC2 instance for Multi-AZ deployment.
  • C. Create an Amazon CloudWatch alarm to recover the EC2 instance in case of failure.
  • D. Launch the EC2 instance with two Amazon Elastic Block Store (Amazon EBS) volumes that use RAID configurations for storage redundancy.
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Suggested Answer: C 🗳️
by Andy_09 at Feb. 6, 2024, 6:21 p.m.
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Highly Voted 11 months, 2 weeks ago
Selected Answer: C
A. Enable termination protection for the EC2 instance. No. Termination protection is about avoid accidentally delete the instance B. Configure the EC2 instance for Multi-AZ deployment. No. Question says "cannot run on more than one instance" C. Create an Amazon CloudWatch alarm to recover the EC2 instance in case of failure. Yes. CloudWatch can be used to recover the instance: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/UsingAlarmActions.html#AddingRecoverActions D. Launch the EC2 instance with two Amazon Elastic Block Store (Amazon EBS) volumes that use RAID configurations for storage redundancy. No. Raid could be helpful to increase resilience, but does not help with "improve the recovery time"
upvoted 15 times
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Andy_09
Highly Voted 1 year, 1 month ago
Option C
upvoted 8 times
Typewriter101
1 year, 1 month ago
i think D is the answer. Cause the question asks for a resilient solution and EBS with RAID config can balance between the performance and redundancy. EBS can also help with faster launch.
upvoted 2 times
MatAlves
6 months, 1 week ago
But how does that "improve the recovery time for the system"?
upvoted 2 times
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_mavik_
1 year, 1 month ago
Your solution can't resolve the problem
upvoted 3 times
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buzzinmumbai
Most Recent 11 months, 4 weeks ago
Option should be B .They are not asking about storage anywhere. In muti-AZ you application runs on the primary and the secondary is kept in sync.
upvoted 1 times
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mohammadthainat
12 months ago
Selected Answer: C
Question about """improve the recovery time for the system""" RAID improves data resilience, but won't recover the instance if the system itself fails. it's 100% C
upvoted 5 times
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dkw2342
1 year ago
Pretty sure option D is NOT correct. > RAID 5 and RAID 6 are not recommended for Amazon EBS (...). > RAID 1 is also not recommended for use with Amazon EBS. https://docs.aws.amazon.com/ebs/latest/userguide/raid-config.html#raid-config-options
upvoted 3 times
Awsbeginner87
12 months ago
So what is the answer?
upvoted 2 times
Salilgen
2 months, 4 weeks ago
IMO answer is B. You could set Max desired capacity to 1 in autoscaling group then you always have one instance running
upvoted 1 times
Salilgen
2 months, 4 weeks ago
Sorry. Answer is C. In multi-AZ deployment you must have at least one instance per AZ
upvoted 1 times
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sandordini
11 months, 1 week ago
C: You can create an Amazon CloudWatch alarm that monitors an Amazon EC2 instance and automatically recovers the instance if it becomes impaired due to an underlying hardware failure or a problem that requires AWS involvement to repair. Terminated instances cannot be recovered. A recovered instance is identical to the original instance, including the instance ID, private IP addresses, Elastic IP addresses, and all instance metadata.
upvoted 3 times
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haci
1 year ago
For those who choose C, the question asks that "must design a resilient solution".. C may improve recovery time but it has nothing to do with resiliency.
upvoted 1 times
JackyCCK
12 months ago
"resilient solution that can improve the recovery time for the system" , resiliency here means only
upvoted 2 times
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_mavik_
1 year, 1 month ago
Option C
upvoted 2 times
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stephensimudemy
1 year, 1 month ago
Selected Answer: C
Can only run 1 instance. improve recovery time.
upvoted 2 times
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stephensimudemy
1 year, 1 month ago
Option B. Question never ask anything about storage.
upvoted 1 times
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osmk
1 year, 1 month ago
Selected Answer: D
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/raid-config.html
upvoted 6 times
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