Alibaba ACA-Cloud1 - ACA Cloud Computing Certification Exam Exam
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Total 72 questions
Question #11 (Topic: Topic 1)
When using Alibaba Cloud SLB, you can set different weights for backend ECS instances. The higher the weight of a backend ECS instance, the more load will be
assigned to it. If an SLB instance has 5 ECS instances in the backend server pool, all of which are healthy. Among these 5 ECS instances, the weight of ecs_inst1
is set to 100. Which of the following statements is correct?
assigned to it. If an SLB instance has 5 ECS instances in the backend server pool, all of which are healthy. Among these 5 ECS instances, the weight of ecs_inst1
is set to 100. Which of the following statements is correct?
A. We do not know the weight settings of the remaining 4 ECS instances, so we cannot tell what would happen.
B. 100% of loads will be assigned to ecs_inst1, and the rest 4 ECS instances will stay idle.
C. Based on SLBג€™s working mechanism, approximately 20% of loads will be assigned to ecs_inst1.
D. Based on request level parameters of external requests, all requests with a request level parameter of 100 will be transferred to ecs_inst1.
Answer: A
Question #12 (Topic: Topic 1)
Server Load Balancer can help protect from ___________________ attack.
A. DDoS
B. Virus
C. Ransomware
D. SQL injection
Answer: A
Question #13 (Topic: Topic 1)
Which of the following statements to OSS bucket is not correct?
A. Every user can create more than one bucket
B. Bucket name can be changed after creation
C. Every bucket should have a unique name
D. There is no limitation to objects number inside one bucket
Answer: B
Question #14 (Topic: Topic 1)
www.company.com is a newly launched social portal for exchanging automotive information. The portal is based on PHP, including 10GB of images, and some
JavaScripts files. Currently one single ECS instance is used to host all the application content as well as a MySQL database. With the growing number of users,
the portal is getting slower to load images or respond to user requests. Moreover, there will be additional 50GB image content uploaded to the portal every week.
Which combination of Alibaba Cloud services below can help resolve the storage and performance issue at the same time?
JavaScripts files. Currently one single ECS instance is used to host all the application content as well as a MySQL database. With the growing number of users,
the portal is getting slower to load images or respond to user requests. Moreover, there will be additional 50GB image content uploaded to the portal every week.
Which combination of Alibaba Cloud services below can help resolve the storage and performance issue at the same time?
A. OSS + CDN combination
B. OSS + MTS combination
C. OSS + RDS combination
D. OSS + ECS combination
Answer: D
Question #15 (Topic: Topic 1)
Which method is not supported by OSS to create a bucket?
A. through OSS API/SDK
B. through ECS instance filesystem directory operation
C. through oss cmd tool
D. through cloud console
Answer: C
