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ACA Cloud Computing Certification Exam (ACA-Cloud1) - Ali baba Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
72 Total Questions
1
Question
Anti-DDoS is one of the major features in Alibaba Cloud Security Service. Many websites have experienced different types of DDoS attacks, an accurate understanding of DDoS is crucial to protecting websites. Which of the following descriptions about DDoS attack is the most accurate one?
Options
A The main purpose of DDoS attack is to make the target server unable to provide service normally,
which is one of the network attacks that are most difficult to defend.
B The purpose of DDoS attack is to steal confidential information.
C DDoS attack will try to crack the password through a large number of attempts.
D The main target for DDoS attack is the database.
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2
Question
Which of the following scenarios is applicable to use RDS read-only instances?
Options
A Implements data backtracking for the last two days.
B Improves RDS storage capabilities.
C Reduces the write pressure on the RDS primary instance.
D Reduces the read pressure on the RDS primary instance.
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3
Question
As a cloud computing service provider, Alibaba Cloud provides security services including . (Choose two.)
Select 2
Options
A Security isolation between cloud computing tenants.
B IP white list setting for RDS.
C Application maintenance in ECS instances.
D Security operation for underlying hardware of cloud computing.
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4
Question
Alibaba Cloud CDN can directly accelerate the access to the files stored in OSS and reduce OSS traffic costs.
Options
A TRUE
B FALSE
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5
Question
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?
Options
A Based on SLB’s working mechanism, approximately 20% of loads will be assigned to ecs_inst1.
B Based on request level parameters of external requests, all requests with a request level parameter of 100 will be transferred to ecs_inst1.
C We do not know the weight settings of the remaining 4 ECS instances, so we cannot tell what would happen.
D 100% of loads will be assigned to ecs_inst1, and the rest 4 ECS instances will stay idle.
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