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Alibaba Exam ACA-Developer Topic 1 Question 42 Discussion

Actual exam question for Alibaba's ACA-Developer exam
Question #: 42
Topic #: 1
[All ACA-Developer Questions]

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)

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Suggested Answer: B, C, D

by Cory at May 30, 2023, 11:22 AM

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Thad
20 hours ago
I'm not sure about C, but I think A and D make sense. The security group and configuration file settings are important for connectivity.
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Wilburn
3 days ago
I agree with Emeline. The security group and the bind-address parameter could be causing the issue.
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Emeline
5 days ago
I think A and D could be the reasons.
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Marshall
6 days ago
But what about the bind-address parameter in the my.ini file? Could that also be causing the problem?
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Cristy
11 days ago
I agree with Cherelle, the MySQL service port might not be open in the security group.
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Cherelle
13 days ago
I think the issue might be with the security group on ECS-A.
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