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Alibaba ACA-Cloud1 Exam - Topic 7 Question 16 Discussion

Company A builds a sales management platform based on Alibaba Cloud services, using 3 ECS instances. One of the ECS instance has MySQL installed as the database server of the platform, the other two are used as WEB servers. After some time, due to the rapid increase of employees and sales analysis requests, the performance of the platform is challenged in terms of response time. Through CloudMonitor, it is found that the average CPU usage reaches 70% for the two WEB server ECS instances and the database load reaches 75% for the database server ECS instance. In this situation, company A may choose which Alibaba Cloud services to improve the performance . (Choose two.)
B) By adding a SLB instance and increase the number of ECS instances to reduce the work load on current ECS instances. and C) Use RDS to replace existing self-built database, in order to obtain better database performance; also creating RDS read-only instances to handle read-only requests, hence reduce the work load on master RDS instance.
A) Use content delivery network, CDN, to accelerate the caching of the platform's css, JavaScript files etc.
D) Import data into OSS to share the storage load of the platform.

Alibaba ACA-Cloud1 Exam - Topic 7 Question 16 Discussion

Actual exam question for Alibaba's ACA-Cloud1 exam
Question #: 16
Topic #: 7
[All ACA-Cloud1 Questions]

Company A builds a sales management platform based on Alibaba Cloud services, using 3 ECS instances. One of the ECS instance has MySQL installed as the database server of the platform, the other two are used as WEB servers. After some time, due to the rapid increase of employees and sales analysis requests, the performance of the platform is challenged in terms of response time. Through CloudMonitor, it is found that the average CPU usage reaches 70% for the two WEB server ECS instances and the database load reaches 75% for the database server ECS instance. In this situation, company A may choose which Alibaba Cloud services to improve the performance . (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: B, C

by Denise at May 08, 2022, 02:13 AM

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Patrick
7 months ago
B is essential, can't overload those ECS instances!
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Chanel
7 months ago
A is a good idea for speeding things up, but not a complete fix.
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Ula
8 months ago
Surprised they didn't mention scaling the database sooner!
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Kallie
8 months ago
I think D could help too, but not sure if it's the best choice.
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Fausto
8 months ago
Definitely B and C, that makes the most sense!
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Elenora
8 months ago
I'm a bit confused here. The question is asking for advice, but it's not clear what the "right" answer is. I'll need to review the concepts of confidence levels and statistical significance before deciding.
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Wilson
8 months ago
I'm a bit confused on the difference between objective functions and MOEs. I'll have to make an educated guess on this one.
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Pearlene
8 months ago
I think insurable interest is about who has a stake, not the disclosure duty.
upvoted 0 times
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