Alibaba Cloud Server Guard provides brute-force password cracking protection. Therefore, users who have activated Server Guard neither need to modify the administrator password of their ECS instances periodically nor need to set a complicated password.
Even with Alibaba Cloud Server Guard enabled, it is still recommended to periodically change passwords and use complex passwords to improve security. Server Guard provides additional protection but is not a substitute for strong password practices.
Which of the following statements about file uploading to OSS is NOT correct?
Not all upload methods in Alibaba Cloud OSS support resuming from a breakpoint. Only specific methods, such as multipart upload, support this feature. Small files can be uploaded using a single PUT request, while APPEND is useful for continuously updated log files. For large files, multipart uploading is recommended to handle potential interruptions.
ECS provides several benefits, such as Elastic Computing. In ECS, Elastic Computing includes features like ___________________. (Choose four.)
Elastic Computing on Alibaba Cloud ECS includes features that allow users to quickly start or release multiple instances, upgrade bandwidth without downtime, adjust CPU and memory configurations, and perform horizontal scaling in conjunction with Server Load Balancer (SLB). However, option E is incorrect as there is a limit to the number of disks that can be attached to an ECS instance.
When using Alibaba Cloud SLB, users can enable the Health Check function. Layer-4 SLBs (TCP protocol) determine the availability of ECS instances through _________________.
For Layer-4 SLB using TCP, the health check determines ECS instance availability based on the successful completion of a TCP 3-way handshake. This ensures that the backend server is reachable and can accept connections, which is critical for reliable TCP-based load balancing.
Cloud computing adopts a common model in Distributed Systems. It distributes a computing task to a resource pool (comprised of a large number of computers). Elastic utilization of the resource pool allows applications to obtain computing capacity, storage space, and message services according to needs. Which of the following statements are correct about cloud computing? (Choose four.)
Cloud computing is characterized by large-scale infrastructure, high availability, on-demand service provisioning, and versatility in handling diverse applications and workloads. It supports both multi-tenant and single-tenant configurations, and although containerization is popular, cloud computing is not limited to container-based architectures.
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