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Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 379 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C02
Question #: 379
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C02 Questions]

A company is running a multi-tier web application on AWS. The application runs its database tier on Amazon Aurora MySQL. The application and database tiers are in the us-east-1 Region. A database administrator who regularly monitors the Aurora DB cluster finds that an intermittent increase in read traffic is creating high CPUutilization on the read replica and causing increased read latency of the application.
What should a solutions architect do to improve read scalability?

  • A. Reboot the Aurora DB cluster.
  • B. Create a cross-Region read replica
  • C. Increase the instance class of the read replica.
  • D. Configure Aurora Auto Scaling for the read replica.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by dmscountera at March 11, 2021, 6:16 p.m.
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NJo
Highly Voted 3 years, 7 months ago
In 1990s, we all would have selected A. Just reboot eveything to fix the problem :D. Anyways, I'll go with D.
upvoted 90 times
SoeLH
3 years, 6 months ago
Lol, you remind me of the good old days where we used to reboot to solve problems.
upvoted 4 times
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shantest1
3 years, 7 months ago
You are funny! :0)
upvoted 7 times
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mahdeo01
3 years, 6 months ago
Haa haa Agree to you !!! You reminded me of our golden early days of IT !!!!! well the answer is D : Aurora Auto Scaling enables your Aurora DB cluster to handle sudden increases in connectivity or workload. When the connectivity or workload decreases, Aurora Auto Scaling removes unnecessary Aurora Replicas so that you don't pay for unused provisioned DB instances. You define and apply a scaling policy to an Aurora DB cluster. The scaling policy defines the minimum and maximum number of Aurora Replicas that Aurora Auto Scaling can manage. Based on the policy, Aurora Auto Scaling adjusts the number of Aurora Replicas up or down in response to actual workloads, determined by using Amazon CloudWatch metrics and target values
upvoted 12 times
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meeko86
3 years, 7 months ago
IT Crowd - "Have you tried to turn it off and on again?"
upvoted 8 times
theCreatorSD
3 years, 6 months ago
Hello, IT. ;D
upvoted 4 times
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jkwek
Highly Voted 3 years, 7 months ago
Answer is D. https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Integrating.AutoScaling.html To meet your connectivity and workload requirements, Aurora Auto Scaling dynamically adjusts the number of Aurora Replicas provisioned for an Aurora DB cluster using single-master replication.
upvoted 8 times
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rvnz45
Most Recent 3 years, 2 months ago
Selected Answer: D
just to make it visible as community answer :D you can find great explanation from others here
upvoted 3 times
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Akash7
3 years, 6 months ago
D. https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Integrating.AutoScaling.html
upvoted 3 times
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aesr10
3 years, 7 months ago
D for sure
upvoted 3 times
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syu31svc
3 years, 7 months ago
"scalability" is the key word here so D
upvoted 6 times
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occupatissimo
3 years, 8 months ago
Aurora scale automatically, no need to configure it. Instead is possible to create read replica in other, so B is ok
upvoted 2 times
sugarwall09
3 years, 7 months ago
Excellent point, yet it says " application and database tiers" in the same region. how would one justify adding read replica in another Zone?
upvoted 1 times
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Alileva
3 years, 8 months ago
Answer is D You define and apply a scaling policy to an Aurora DB cluster. The scaling policy defines the minimum and maximum number of Aurora Replicas that Aurora Auto Scaling can manage. https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Integrating.AutoScaling.html
upvoted 3 times
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waqas
3 years, 7 months ago
When u have the option to scale 15 read relicas in a region then why specifically going for Cross Region as there is no such requirement. Secondly if you want option B, in that case Aurora Global will be required.
upvoted 3 times
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gargaditya
3 years, 6 months ago
Aurora autoscales with regard to storage capacity automatically. At the node level, Autoscaling in Aurora refers to scaling read replicas(unlike RDS where we refer to storage space, its not enabled by default in RDS) https://1drv.ms/x/s!Al2WmWQmp2xZtmVg-9uLU1O6Rhdl
upvoted 1 times
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Sallywhite
3 years, 8 months ago
DDDDDD
upvoted 1 times
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waqas
3 years, 8 months ago
Yes its D.
upvoted 2 times
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dmscountera
3 years, 8 months ago
D. Configure Aurora Auto Scaling for the read replica.
upvoted 3 times
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C (25%)
B (20%)
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