ACA-Developer Exam Dumps - Alibaba Cloud Alibaba Developer Questions and Answers

Question # 14

Which of the following statements describe the trace/D and spanID in a service tracking system (such as Zipkin) correctly? (Number of correct answers: 3)

Options:

When the user's request enters the system, a globally unique traceld will be generated on the first layer of the calling network.

The tracelD will be called with each layer and passed back continuously, so through traceld, the path of a user request in the system can be connected in series.

Spanld can locate the position of a request in the system call, and who its upstream and downstream dependencies are respectively.

Traceld is used to distinguish the sequence of calls between different services of the system, spanld is used to concatenate all the paths that a certain request traverses in the system.

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Question # 15

Alibaba Cloud Log Service is a Pay-As-You-Go service. The billing unit is 7 day, and the configuration can be adjusted at any time: fees are charged according to actual usage. Which of the following are the main charges for Log Service? (Number of correct answers: 3)

Options:

Read and write traffic

Storage capacity

Index traffic after index configuration

Query analysis

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Question # 16

In order to have your applications interact with Alibaba Cloud RabbitMQ, you need to create related MQ resources first. Which of the following resources must be created? (Number of correct answers: 3)

Options:

Vhost

Exchange

Queue

Broker

Topic

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Question # 17

A developer received a response code of 409 when trying to use a KMS key via the API. Given that a 409 response was returned, which of these states could the KMS key be in? (Number of correct answers: 3)