QUESTION: 17

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?

RAM Policy
STS authorization
Bucket Policy
Object Policy

Answer(s): B

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QUESTION: 18

A job hunting website stores user's resumes in Object Storage Service (OSS) The current resume upload process is as follows:

1. Users upload resumes
2. The server responds to the upload request
3. The resume is uploaded to the server
4. The server uploads the resume to OSS

Which of the following methods can be used to upload objects to OSS without requiring Step 3?

Simple Upload
Form Upload
Multipart Upload
Append Upload

Answer(s): D

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QUESTION: 19

Which of the following database connection methods does ApsaraDB for Redis support? (Number of correct answers: 2)

DMS (Data Management Service)
aliyun-cll
Redis-cIl
Sentinel

Answer(s): C,D

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QUESTION: 20

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)

When the website has low traffic, the CDN will receive fewer requests and this will result in a lower cache hit rate.
Insufficient bandwidth was selected when enabling the CDN service, causing the service capacity reach its limit too early.
HTTP Header settings may cause cache misses.
The origin site has a large number of dynamic resources.
Cache configuration is inappropriate (ex. overly short Cache Expiry Time for popular files).

Answer(s): A,B,E

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QUESTION: 20

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