FirstBuy is a rapidly growing global e-commerce company. The company hosts its web application on Alibaba Cloud. The application serves both static and dynamic content. Transactional data is stored in an ApsaraDB RDS database.
Lately, customers have been complaining about slow page loading speeds.
As a Cloud Architect, which combination of actions can you take to solve this problem? (Correct answers: 2)

• A. Host the dynamic web content in OSS.
• B. Enable read/write splitting for the ApsaraDB RDS instance.
• C. Set up an Alibaba Cloud CDN distribution.
• D. Set up an AnalyticDB for MySQL cluster for transactional data.
• E. Configure a multiple-zone deployment for the ApsaraDB RDS instance.

A company runs an application on an on-premises Windows Server. The application stores data using an Oracle Database Standard Edition server. The company plans to migrate to Alibaba Cloud while minimizing development changes. The Alibaba Cloud application environment should be highly available.
As a Cloud Architect, which combination of actions would you propose the company take to meet these requirements? (Correct answers: 2)

• A. Use Data Transmission Service (DTS) to migrate from the Oracle database to a PolarDB for PostgreSQL (Compatible with Oracle) database.
• B. Use Data Transmission Service (DTS) to migrate from the Oracle database to a self-managed Oracle database on Elastic Compute Service (ECS) instances deployed across multiple zones.
• C. Refactor the application as serverless using Alibaba Cloud Function Compute.
• D. Refactor the application to run on an Elastic Compute Service (ECS) Alibaba Cloud Linux instance.
• E. Rehost the application on Elastic Compute Service (ECS) Windows Server instances deployed across multiple zones.

A multinational corporation is designing its network architecture on Alibaba Cloud to support its distributed applications. Their requirements include:
* Private and high-speed connectivity between on-premises data centers and Alibaba Cloud VPCs across multiple regions.
* Centralized management and enforcement of network security policies.
* Comprehensive monitoring and logging of all network traffic for compliance and auditing purposes.
Which combination of Alibaba Cloud services should the corporation implement to meet these requirements MOST effectively? (Correct answers: 2)

• A. Deploy multiple VPN Gateways in each region and manage connections individually.
• B. Use Alibaba Cloud Express Connect with Transit Router and integrate with Security Center.
• C. Deploy Alibaba Cloud Global Accelerator for all inter-region traffic routing.
• D. Set up Cloud Enterprise Network (CEN) and integrate with Simple Log Service.
• E. Implement VPC peering between all regional VPCs and utilize Security Groups for access control.

You ' ve been hired to design a highly available application consisting of web, application, and database tiers.
HTTPS content delivery should be as close to the edge as possible, with the least delivery time.
Which of the following solutions meets these requirements and is MOST secure?

• A. Configure a public-facing Application Load Balancer (ALB) with multiple redundant Elastic Compute Service (ECS) instances in private vSwitches. Configure Alibaba Cloud CDN to deliver HTTPS content using the ALB as the origin.
• B. Configure a public-facing Application Load Balancer (ALB) with multiple redundant Elastic Compute Service (ECS) instances in private vSwitches. Configure Alibaba Cloud CDN to deliver HTTPS content using the ECS instances as the origin.
• C. Configure a public-facing Application Load Balancer (ALB) with multiple redundant Elastic Compute Service (ECS) instances in public vSwitches. Configure Alibaba Cloud CDN to deliver HTTPS content using the ALB as the origin.
• D. Configure a public-facing Application Load Balancer (ALB) with multiple redundant Elastic Compute Service (ECS) instances in public vSwitches. Configure Alibaba Cloud CDN to deliver HTTPS content using the ECS instances as the origin.

Clarence runs a retail company that hosts an e-commerce website on Alibaba Cloud across multiple Alibaba Cloud regions. Clarence wants the website to be operational at all times to ensure customers can make purchases around the clock. The website stores data in a PolarDB for MySQL instance.
Which of the following solutions will provide the HIGHEST availability for the database?

• A. Utilize the Global Database Network (GDN) to establish cross-region clusters for PolarDB, enabling both read and write operations across multiple regions. In case of a failure, seamlessly direct traffic to a secondary region that can serve as the primary node, maintaining high availability and minimal downtime.
• B. Create two PolarDB for MySQL clusters configured with read/write splitting in two different regions.
  When a region fails, use Function Compute to replicate the data in the read-only nodes to the healthy region. Then, configure the website to fail over to the healthy region.
• C. Deploy the Cluster Edition of PolarDB for MySQL to ensure that the system can elect a new primary node from read-only nodes when the primary node fails. Ensure that the website is configured to reconnect to the cluster after the failover.
• D. Configure cross-region backup and restoration in PolarDB. During disruptions, restore the latest backup set to a new PolarDB cluster in another region. Redirect application traffic to this restored cluster and configure read/write splitting for this cluster.