ACA-Operator Sample Questions Answers

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

Which database utility is suitable for managing databases in a centralized manner?

A company is developing a music application based on OSS and ECS, their users can download mp3 files after signing up for the application. Recently, the public network traffic to the OSS has doubled but the increase of registered users is less than 10%. After in-depth analysis, system operators find that many download requests are requested from the external search engine. In this case, which of the following measures is thought to be able to address this issue?

Which of the following methods can NOT be used for operating Alibaba Cloud

Elastic Compute Service (ECS) instances?

Which of the following web applications are suitable for deployment on Simple Application Server (SAS), as compared with ECS? (Number of correct answers: 3)

Which command is used to get the Docker daemon information?

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 visitor's real IP address. Which of the following statements about obtaining the visitor's real IP address are correct? (Number of correct answers: 2)

A visitor's real IP address can only be obtained by modifying the site or web application.

B. visitor's real IP address is stored in the "X-Forwarded-For" HTTP header. It can be directly obtained via Apache or NGINX logs.

C. In Windows, if IIS is used, after installing the "F5XForwardedFor" extension module, the visitor's real IP address can be seen via IIS logs.

D. You can activate the "record visitor's real IP" function in the Alibaba Cloud CDN console, then you can directly view visitor's IP addresses from the Alibaba Cloud CDN access logs.

Which of these services can be used to monitor Alibaba Cloud resources and send alerts? (Number of correct answers: 3)

________________ is a fully-managed event-driven computing service that allows you to run code in an elastic and reliable way?

You are responsible for the system operations of a product and have implemented the cloud infrastructure in the Alibaba Cloud platform. When

business loads increase, _______ automatically adds ECS instances to

ensure sufficient computing capabilities. When business loads decrease, the

same service automatically removes ECS instances to save costs. Which

service are you using?

Which command should you run to create the resources described in the Terraform scripts?

Which of the following options correctly describes CloudMonitor Custom Monitoring and Custom Events? (Number of correct answers: 2)

In order to deal with sudden spikes in traffic, Company A uses Alibaba Cloud

Auto Scaling to set up an alarm trigger task (growing the Scaling Group when

the average memory utilization on ECS instances exceeds 80%). During the

test, it was found that the alarm task was not executed successfully. Which of

these could be possible causes? (Number of correct answers: 3)

A developer has written a web application using a microservice architecture,

in such an 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?

Cloud Config tracks configuration changes of your resources and evaluates configuration compliance.