You can create a custom image for ECS using which of the followings? (Choose two.)
Answer : A, D
Alibaba Cloud Object Storage Service (OSS) is a massive, highly available, secured and cost effective storage service. One of the special characteristics of OSS is its superior data reliability, because of its underlying backup technology and policies. Which of the following statement about OSS backup is correct?
Answer : D
A, B, and C are incorrect answers because they do not reflect the actual backup technology and policies of OSS.
A is incorrect because OSS does not require manual recovery of data, as it automatically handles data errors or failures.
B is incorrect because OSS provides data protection and backup for customers, and customers do not need to safeguard their own data or use offsite backups.
C is incorrect because OSS does not use RAID0+1 configuration of its underlying physical hard disks, but rather uses a distributed storage system that stores multiple replicas of data on different devices.
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.
Which method is not supported by OSS to create a bucket?
Answer : B
Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following is not the feature supported by Alibaba Cloud Auto Scaling?
Answer : D
Elastic Scale-Out: Automatically adds ECS instances to handle increased workloads.
Elastic Scale-In: Automatically removes ECS instances to reduce costs when workloads decrease.
Elastic Self-Health: Automatically replaces unhealthy ECS instances to ensure high availability and reliability.
Scheduled Scaling: Automatically adds or removes ECS instances based on predefined schedules.
Predictive Scaling: Automatically predicts future workloads and adjusts ECS instances accordingly.
ECS can be used along with_____to store static images, videos, and reducing storage fees.
Answer : A
Improved user experience: You can use OSS to store and deliver static content, such as images and videos, to your users. OSS integrates with CDN products to provide reliable, scalable, flexible, and cost-effective content distribution solutions. You can use ECS to run dynamic applications, such as web servers and databases, that require high performance and availability. ECS provides fast memory and the latest CPUs to help you power your cloud applications and achieve faster results with low latency.
Reduced storage fees: You can use OSS to store large amounts of data at a low cost. OSS offers four tiers of storage: Standard, Infrequent Access, Archive, and Cold Archive. Each tier is cost-optimized for specific storage patterns. You can use lifecycle policies to automatically transition your data to the appropriate storage tier based on your business needs. You can also use Storage Capacity Unit to plan your storage budget and usage in one place. You can use ECS to scale your computing resources up or down based on real-time demands. ECS supports pay-as-you-go and different capacity reservation plans. You can also use spot instances to reduce your computing costs by up to 90%.
A/An is a copy of data on a disk at a certain point in time.