An online education company plans to migrate their services to Alibaba Cloud. They want to improve their video streaming quality during peak hours using Alibaba Cloud services. As a Cloud Architect, you are tasked with building a solution to manage traffic spikes without compromising on video quality.
What combination of services would BEST fit their requirements? (Correct answers: 3)

• A. Use Alibaba Cloud Global Accelerator for optimizing cross-region traffic paths.
• B. Employ Auto Scaling to adjust server capacity dynamically based on user traffic.
• C. Implement Tair (Redis OSS-Compatible) to reduce latency during user authentication.
• D. Create Alibaba Cloud CDN distributions to cache video content at PoPs close to the audience.

A pharmaceutical company runs protein folding experiments on-prem. The experiments are split into two parts:
* A simulation application that runs on Linux, and outputs data to an NFS share every minute.
* A visualization application that runs on Windows that converts data from the simulation into graphics.
This application requires an SMB file system.
To support these applications, the company maintains two synchronized file systems, which is prone to data duplication and contributes to inefficient data storage. Lately, they have been considering migrating their use case to Alibaba Cloud. However, they do not want to make any code changes to either application.
As a Cloud Architect, propose a solution for this case.

• A. Migrate both applications to Alibaba Function Compute. Use Object Storage Service (OSS) to exchange data between the applications.
• B. Migrate the simulation application to Linux ECS instances. Migrate the visualization application to Windows ECS instances. Use Alibaba MQ to exchange data between the applications.
• C. Migrate the simulation application to Linux ECS instances. Migrate the visualization application to Windows ECS instances. Use Apsara File Storage NAS for storage.
• D. Migrate both applications to Alibaba Cloud Container Service for Kubernetes. Use Alibaba Cloud File Gateway for storage.

Ibrahim manages a large-scale manufacturing plant equipped with state-of-the-art instrumentation and telemetry that collects various information about the machines and products. These sensors collectively generate 1 TB worth of logs each day. Each notification is approximately 2 KB in size. You have been contracted to design a solution to ingest and store these logs for future analysis.
Ibrahim wants a highly available solution, but also wants to minimize costs. Additionally, he does not want to manage additional infrastructure. To meet their business requirements, they need to keep 14 days of data available for immediate analysis, and archive any other data older than 14 days.
What is the MOST operationally efficient solution that meets these requirements?

• A. Use Alibaba Cloud Log Service (SLS) to ingest log data, enabling real-time analysis with integrated dashboards and queries. Use SLS export features to move logs older than 14 days to Object Storage Service (OSS) with lifecycle policies to transition to Archive Storage.
• B. Use DataHub to feed alerts into Alibaba Cloud Elasticsearch and manage retention through snapshots and manual deletions.
• C. Use Apache Kafka managed on Alibaba Cloud to connect logs from devices, feeding into SLS for real- time analysis and eventual archiving to OSS manually every 14 days.
• D. Deploy ECS instances with Server Load Balancer (SLB) to ingest alerts and store them in OSS. Utilize lifecycle rules to archive data after 14 days.

Eric is developing a containerized application that will run on an Alibaba Cloud Container Service for Kubernetes (ACK) cluster. This production application will run on a managed ACK cluster that is provisioned with pay-as-you-go instances.
Eric also needs a dedicated ACK cluster for development work. This cluster will be used infrequently to test the resiliency of the application. Due to having a limited workforce and time, Eric hopes that ACK will be able to manage all the nodes in the cluster.
As a Cloud Architect, which of the following solutions will meet these requirements MOST cost-effectively?

• A. Create a managed ACK cluster and configure the node pool with subscription instances.
• B. Create two managed ACK clusters and configure one to use a node pool with pay-as-you-go instances, and one to use a node pool with preemptible instances.
• C. Create a managed ACK cluster and configure the node pool with preemptible instances.
• D. Create an Auto Scaling group and associate a launch template that uses preemptible instances.
  Configure the user data to add these instances to a dedicated ACK cluster.