QUESTION: 33

A developer have written a web application using a microservice architecture, in such a architecture, the client (web browser or mobile application) first initiates a request. The request first reaches the load balancer, then goes through an authentication service, a billing service, then requests a resource, and finally a result is returned. How many spans does such a call chain consist of?

3
4
5
6

Answer(s): A

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QUESTION: 34

Which of the following options are correct for Multipart Upload and Resumable Upload in Object Storage Service (OSS)? (Number of correct answers: 3)

Use Multipart Upload to upload parts of a file in parallel to speed up the upload process
Multipart Upload is usually used when the size of the file to be uploaded is large
If the upload fails due to an accident during the uploading of fragments, you need to upload all the fragments again
After an upload is interrupted, the portions of the file which have successfully uploaded prior to the interruption will be saved in the OSS bucket

Answer(s): A,B,C

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QUESTION: 35

In Alibaba Cloud RocketMQ, messages are kept for up to _____ days. We recommend configuring a monitoring service to watch the consumption status, and intervene manually when ''not consumed but to be deleted'' message alarms occur.

2
3
4
5

Answer(s): B

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QUESTION: 36

When using the Alibaba Cloud CLI, what is the default data format for responses, when executing queries such as "aliyun ecs Describelnstances"?

JSON
YAML
XML
TABLE

Answer(s): A

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