Free ACA-Cloud1 sample questions for the ACA Cloud Computing Certification Exam exam. No account required: study at your own pace.
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Your friend purchases some Alibaba Cloud resources and uses them to build an online training website. Before the site goes online, your friend wants to perform some performance tests but doesn't know how to do it. In this case, which of the following services can help?
Your website has high volume of traffic and sudden spikes for a very short time. In this scenario, ______________ can manage traffic peak efficiently and maintain a consistent user experience.
A/An _________________ is a copy of data on a disk at a certain point in time.
Which of the following scenarios is applicable to use RDS read-only instances?
A large shopping mall deploys a new video surveillance system. The five-floor building in which the mall is located installed 35 HD cameras to monitor the major exits. The surveillance system is deployed on an ECS instance, which has four 2 TB data disks to store video data. However, video data grows rapidly and the engineers find that the ECS will run out of storage space within 2 weeks. In this case, _____________ product is thought to be the best solution for addressing the storage challenge while ensuring quick access to historical video data when needed.
Which method is not supported by OSS to create a bucket?
Your website has oscillating traffic peaks that are difficult to predict in advance. In this scenario, it is recommended to use SLB and __________________ together with ECS.
When we talk about the 'Elastic' feature for ECS product, we are not talking about _____________.
Server Load Balancer supports health checks for ECS instances and allows user to specify the frequency. If an ECS instance does not qualify the health check, traffic will not be forwarded to that instance, thereby ensuring application availability.
If you are running an online ticket booking service with relatively fixed traffic, then which kind of charging mode is more suitable for you?
Alibaba Cloud provides anti-DDoS products of different levels. If the service availability needs to be kept at 99.9% or higher under DDoS attacks, which of the following is the MOST suitable product?
Multiple lower-configuration I/O-optimized ECS instances can be used with ___________ to deliver a high-availability architecture.
When using Alibaba Cloud OSS, you can set access control in 3 different levels, which are _____________ (Choose three.)
Auto Scaling can automatically remove unhealthy ECS instances from the scaling group (this feature is called Elastic Self-Health). Yet, after removal, the user has to manually add equivalent amount of new ECS instances back to the scaling group.
www.company.com is a newly launched social portal for exchanging automotive information. The portal is based on PHP, including 10GB of images, and some JavaScripts files. Currently one single ECS instance is used to host all the application content as well as a MySQL database. With the growing number of users, the portal is getting slower to load images or respond to user requests. Moreover, there will be additional 50GB image content uploaded to the portal every week. Which combination of Alibaba Cloud services below can help resolve the storage and performance issue at the same time?
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