Alibaba Cloud ACA-Developer ACA Developer Certification Online Training
Alibaba Cloud ACA-Developer Online Training
The questions for ACA-Developer were last updated at Nov 22,2024.
- Exam Code: ACA-Developer
- Exam Name: ACA Developer Certification
- Certification Provider: Alibaba Cloud
- Latest update: Nov 22,2024
A mobile application developer intends to use Alibaba Cloud Object Storage Service (OSS) to store the end user data for their app, and to ensure data isolation between each user of the app, to prevent one user from obtaining another’s data.
Which method can be done to meet these requirements?
- A . RAM Policy
- B . STS authorization
- C . Bucket Policy
- D . Object Policy
A mobile application developer intends to use Alibaba Cloud Object Storage Service (OSS) to store the end user data for their app, and to ensure data isolation between each user of the app, to prevent one user from obtaining another’s data.
Which method can be done to meet these requirements?
- A . RAM Policy
- B . STS authorization
- C . Bucket Policy
- D . Object Policy
A mobile application developer intends to use Alibaba Cloud Object Storage Service (OSS) to store the end user data for their app, and to ensure data isolation between each user of the app, to prevent one user from obtaining another’s data.
Which method can be done to meet these requirements?
- A . RAM Policy
- B . STS authorization
- C . Bucket Policy
- D . Object Policy
A mobile application developer intends to use Alibaba Cloud Object Storage Service (OSS) to store the end user data for their app, and to ensure data isolation between each user of the app, to prevent one user from obtaining another’s data.
Which method can be done to meet these requirements?
- A . RAM Policy
- B . STS authorization
- C . Bucket Policy
- D . Object Policy
1 he server uploads the resume to OSS
Which of the following methods can be used to upload objects to OSS without requiring Step 3?
- A . Simple Upload
- B . Form Upload
- C . Multipart Upload
- D . Append Upload
Which of the following database connection methods does ApsaraDB for Redis support? (Number of correct answers: 2)
- A . DMS (Data Management Service)
- B . aliyun-cll
- C . Redis-cIl
- D . Sentinel
If a user finds that the Content Delivery Network (CDN) cache hit rate is low, what could be the reason? (Number of correct answers: 3)
- A . When the website has low traffic, the CDN will receive fewer requests and this will result in a lower cache hit rate.
- B . Insufficient bandwidth was selected when enabling the CDN service, causing the service capacity reach its limit too early.
- C . HTTP Header settings may cause cache misses.
- D . The origin site has a large number of dynamic resources.
- E . Cache configuration is inappropriate (ex. overly short Cache Expiry Time for popular files).
Assume that a company uses ApsaraDB for PolarDB. The company commonly queries users based on their basic information, including: addresses, company names, and ID numbers.
In this scenario, what is the best practice for creating a database index (or indexes)?
- A . Create a b-tree index on each column to be searched.
- B . Create a hash index on each column to be searched.
- C . Create a gin index for multiple fields.
- D . Create a gist index for multiple fields.
On which operating systems can you install Alibaba Cloud command line tools? (Number of correct answers: 3)
- A . Windows
- B . Linux
- C . macOS
- D . Android
A development team currently supports an application that is designed to be deployed on a single server’s local memory As part of migrating to Alibaba Cloud, the team needs to use Auto Scaling, and must therefore move their game state data off of their servers, so that they can automatically scale up and down without losing game data.
Where should the team store these game results to best allow for consistent results without impacting performance?
- A . OSS
- B . RDS
- C . Redis
- D . Log Service
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