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Free ACA Developer Exam Questions for Alibaba ACA Developer Exam as PDF & Practice Test Software

Page:    1 / 14   
Total 95 questions

Question 1

What are the benefits of creating indexes on PolarDB? (Number of correct answers: 2)



Answer : A, D

Question 2

When using Alibaba Cloud CDN, a visitor's request will first be routed to a CDN edge node, and in the event of a cache miss at this edge node, the node will fetch data from the origin site (back-to-source request). Even with this redirection, it is possible for the origin site to see the visitors real IP address. Which of the following statements about obtaining the visitor's real IP address are correct? (Number of correct answers: 2)



Answer : A, C

Question 3

A developer creates a MySQL database service on a Linux ECS instance (ECS-A), and wants to access this database service from another instance (ECS-B) in the same VPC using the private IP address bound to the ECS instance, however, the connection can't be established. What could cause this? (Number of correct answers: 2)



Answer : C, D

Question 4

Which of the following statements are correct, with regard to Alibaba Cloud Log Service? (Number of correct answers: 3)



Answer : B, C, D

Question 5

A developer is making the ModifyDDInstanceSpec API call to change the specifications of an RDS instance, but the operation fails. Why could this be? (Number of correct answers: 3)



Answer : A, B, C

Page:    1 / 14   
Total 95 questions