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質問 1：
Which of the following OSS tools are GUI-based? (Number of correct answers:2)
A. ossbrowser
B. ossf s
C. Web Console
D. ossutil
正解：B,D
質問 2：
What are the benefits of creating indexes on PolarDB? (Number of correct answers: 2)
A. Reduce invalid data scanning.
B. Improve the efficiency of DDL operations.
C. Improve the efficiency of DML operations such as UPDATE.
D. Improve the query efficiency SELECT statements.
正解：A,D
質問 3：
When a developer calls the Alibaba Cloud SDK to access Elastic Compute Service (ECS), the following error is returned; RealNameAuthenticationError What is the possible cause?
A. The ECS instance name conflicts with other instance names.
B. The API callers account and password are not authorized for ECS access.
C. The user's Alibaba Cloud account has not passed real name authentication
D. The ECS instance name violates the ECS service's naming conventions.
正解：B
質問 4：
A developer runs a web application on a physical machine in an IDC. The machine is running Ubuntu Linux.
Which of the following is the recommended method if he wants to migrate this web application onto an Alibaba Cloud ECS instance?
A. Use a third-party image creation tool to create an image from the physical server. Upload the image to the ECS console to turn it into a custom image. Then, use the custom image to create ECS instances.
B. Use SMC(Server Migration Center) to collect data from the origin physical server. Create an intermediate ECS instance on Alibaba Cloud and wait for the data transfer to complete. Then generate a new image directly from that intermediate ECS instance.
C. Use a third-party image creation tool to create an image from the physical server. The image is then uploaded to Alibaba Cloud Object Storage Service (OSS) for storage. In the ECS console, import that image from OSS, then, create an ECS instance from the custom image.
正解：A
質問 5：
Which of the following descriptions of Alibaba Cloud's SSL certificate service are correct? (Number of correct answers: 2)
A. EV certificates are suitable for large enterprises, financial institutions, etc.
B. OV certificates are suitable for personal websites.
C. Alibaba Cloud SSL Certificate Service supports the purchase of three types of certificates: DV certificates, OV certificates, and EV certificates.
D. DV level certificates are suitable for government organizations, enterprises, educational institutions, etc.
正解：B,C
Which of the following OSS tools are GUI-based? (Number of correct answers:2)
A. ossbrowser
B. ossf s
C. Web Console
D. ossutil
正解：B,D
質問 2：
What are the benefits of creating indexes on PolarDB? (Number of correct answers: 2)
A. Reduce invalid data scanning.
B. Improve the efficiency of DDL operations.
C. Improve the efficiency of DML operations such as UPDATE.
D. Improve the query efficiency SELECT statements.
正解：A,D
質問 3：
When a developer calls the Alibaba Cloud SDK to access Elastic Compute Service (ECS), the following error is returned; RealNameAuthenticationError What is the possible cause?
A. The ECS instance name conflicts with other instance names.
B. The API callers account and password are not authorized for ECS access.
C. The user's Alibaba Cloud account has not passed real name authentication
D. The ECS instance name violates the ECS service's naming conventions.
正解：B
質問 4：
A developer runs a web application on a physical machine in an IDC. The machine is running Ubuntu Linux.
Which of the following is the recommended method if he wants to migrate this web application onto an Alibaba Cloud ECS instance?
A. Use a third-party image creation tool to create an image from the physical server. Upload the image to the ECS console to turn it into a custom image. Then, use the custom image to create ECS instances.
B. Use SMC(Server Migration Center) to collect data from the origin physical server. Create an intermediate ECS instance on Alibaba Cloud and wait for the data transfer to complete. Then generate a new image directly from that intermediate ECS instance.
C. Use a third-party image creation tool to create an image from the physical server. The image is then uploaded to Alibaba Cloud Object Storage Service (OSS) for storage. In the ECS console, import that image from OSS, then, create an ECS instance from the custom image.
正解：A
質問 5：
Which of the following descriptions of Alibaba Cloud's SSL certificate service are correct? (Number of correct answers: 2)
A. EV certificates are suitable for large enterprises, financial institutions, etc.
B. OV certificates are suitable for personal websites.
C. Alibaba Cloud SSL Certificate Service supports the purchase of three types of certificates: DV certificates, OV certificates, and EV certificates.
D. DV level certificates are suitable for government organizations, enterprises, educational institutions, etc.
正解：B,C
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