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| Section | Weight | Objectives |
|---|---|---|
| Delivering Services and Content on Alibaba Cloud | 12% | - Delivering Services and Content on Alibaba Cloud
|
| Building Highly Available, Performant Cloud Architecture | 22% | - Leveling up Your Core Infrastructure
|
| Building Enterprise-grade Networks on Alibaba Cloud | 18% | - Cloud Networking Deep Dive
|
| Securing Workloads on Alibaba Cloud | 22% | - Alibaba Cloud Security Deep Dive
|
| Core Infrastructure Deep Dive | 26% | - Core Compute Infrastructure Deep Dive
|
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NEW QUESTION # 11
A retail chain is utilizing Alibaba Cloud ' s PolarDB to manage its inventory and sales databases. They need to ensure that their SQL queries have minimal impact on their production workload while enabling data analysts to run complex analytical queries.
How can the retail chain optimize their database operations for both transactional and analytical workloads?
(Correct answers: 2)
Answer: A,B
Explanation:
Option B reduces interference between transaction processing and read-heavy workloads inside PolarDB.
PolarDB ' s read/write splitting automatically routes writes to the primary node while distributing eligible reads across read-only nodes. This allows reporting and ordinary SELECT traffic to consume separate compute capacity instead of competing with critical transactional writes on the primary node. Alibaba Cloud specifically identifies reporting, analytics, and read-heavy applications as appropriate read/write-splitting scenarios.
Option D provides stronger isolation for computationally expensive analytics. DTS can continuously synchronize PolarDB for MySQL data into MaxCompute using initial full synchronization followed by ongoing incremental change capture. Analysts can then execute large-scale analytical workloads against MaxCompute without placing those queries on the production transactional database.
Running queries on ECS does not inherently remove load from PolarDB because the SQL operations would still execute against the database. Introducing MongoDB merely to execute analytical queries creates a second database technology without an appropriate replication or analytical architecture.
Together, PolarDB read/write splitting optimizes operational read traffic while DTS-to-MaxCompute isolates heavyweight analytical processing, producing an effective HTAP-style separation of concerns.
Study Guide reference: Core Infrastructure Deep Dive - PolarDB, read/write splitting, DTS, MaxCompute, and analytical workload offloading.
NEW QUESTION # 12
Jason ' s company is running a traditional web application on Alibaba Cloud ECS instances. The company wants to improve efficiency by refactoring the application as microservices that run on containers. The application must be deployed across multiple environments: production and testing. Load for the application is variable, but the minimum load and maximum load are known. As a Cloud Architect, you have been assigned the job of designing the updated application with a serverless architecture that minimizes operational complexity.
Which solution will meet these requirements MOST cost-effectively?
Answer: A
Explanation:
Serverless App Engine is the strongest fit because it provides an application-oriented serverless platform specifically intended for hosting containerized and microservice applications without requiring the organization to administer Kubernetes clusters or ECS infrastructure. SAE can deploy applications directly from container images, including images stored in Alibaba Cloud Container Registry, and automatically manages provisioning, application lifecycle, scaling, monitoring, and underlying resources.
SAE namespaces also provide logical isolation for development, testing, and production environments. This directly addresses the requirement for separate production and testing deployments while avoiding the overhead of maintaining separate ACK clusters.
SAE integrates with Application Load Balancer for Layer 7 ingress and routing. ALB can expose SAE applications and route traffic to the appropriate backend application instances.
ACK Serverless removes worker-node management but still introduces Kubernetes objects and cluster administration. ACK Managed requires even greater cluster administration. Function Compute is optimized for functions and event-driven processing rather than straightforward migration of a multi-service container application.
Study Guide reference: Core Infrastructure Deep Dive - serverless compute, SAE, containerized applications, microservices, and application scaling.
NEW QUESTION # 13
Camila has set up a simple blog hosted on a single Elastic Compute Service (ECS) instance, storing images and files on an Elastic Block Storage (EBS) disk within the ECS instance, and relying on an ApsaraDB RDS for MySQL instance for its data tier. Camila wants to scale up her blog and enhance both resilience and performance with minimal changes to the application.
As a Cloud Architect, which combination of actions can you take to improve both resilience and performance of the website? (Correct answers: 3)
Answer: B,D,E
Explanation:
The existing architecture has two important bottlenecks: a single ECS compute node and files stored on storage attached to that individual ECS instance. Option E eliminates the compute single point of failure. A custom image allows identical ECS instances to be created, while Auto Scaling maintains multiple instances and ALB distributes requests across healthy backends. This provides horizontal scalability and significantly stronger application availability.
Option D addresses shared application storage. File Storage NAS is a managed, POSIX-compatible shared filesystem that multiple ECS instances can mount concurrently. All web servers therefore see the same files, while NAS handles storage scalability and consistency independently from the ECS lifecycle.
Option A improves performance by moving cacheable website content toward users. CDN serves static resources from nearby POPs and reduces requests and bandwidth reaching the origin infrastructure.
Although OSS is excellent for native object-storage workloads, mounting OSS through ossfs does not provide the same filesystem semantics and consistency characteristics as NAS for a traditional application requiring minimal modification. Global Accelerator primarily optimizes network paths and does not eliminate the application ' s compute or storage single points of failure.
Study Guide reference: Building Highly Available, Performant Cloud Architecture - ALB, Auto Scaling, NAS shared storage, and CDN.
NEW QUESTION # 14
Yolanda works for a software company that serves customers all around the globe. They want to ensure that all communications between users and the application are encrypted. They also want to automate the deployment of SSL/TLS certificates across multiple backend servers to streamline operations and maintain high security standards.
Which combination of Alibaba Cloud services should the company implement to achieve this goal MOST effectively? (Correct answers: 2)
Answer: B,C
Explanation:
Server Load Balancer SSL termination and Certificate Management Service provide the most direct combination for centralized TLS protection and certificate lifecycle management.
With SSL/TLS termination on the load-balancing layer, clients establish encrypted HTTPS or SSL connections to the SLB service. Encryption processing is performed centrally rather than requiring every backend instance to independently process incoming TLS handshakes. This simplifies the backend architecture and centralizes certificate configuration.
Certificate Management Service is specifically designed for issuing, importing, storing, monitoring, deploying, and renewing SSL certificates. Alibaba Cloud currently supports centralized certificate deployment to services including SLB, CDN, WAF, ECS, and other supported resources.
The integration is particularly strong because Alibaba Cloud ' s load-balancing services use certificates managed through Certificate Management Service. For example, SSL listeners require appropriate server certificates for encrypted client connections.
WAF adds web-application threat protection but is not primarily a certificate lifecycle automation solution.
CDN with HTTPS is valuable for accelerated content delivery but is not required simply to centralize TLS termination. KMS protects cryptographic keys and secrets but does not replace SSL certificate deployment and lifecycle management.
Therefore, SLB plus Certificate Management Service provides encrypted access and centralized certificate administration with the lowest operational burden.
Study Guide reference: Securing Workloads on Alibaba Cloud - TLS, certificate lifecycle management, SSL termination, and secure load balancing.
NEW QUESTION # 15
An insurance company stores critical data in an Object Storage Service (OSS) bucket. They want to protect the data from accidental deletion.
As a Cloud Architect, what do you propose that the company does to protect the data from accidental deletion?
Answer: A
Explanation:
OSS versioning is specifically intended to protect objects from unintended deletions and overwrites. When versioning is enabled, OSS retains historical versions of an object. A normal delete operation creates a delete marker instead of permanently destroying all existing versions, allowing an administrator to restore a previous version when required.
Alibaba Cloud explicitly recommends versioning as a protection mechanism against accidental deletion or overwriting. Its current documentation states that, after versioning is enabled, accidentally deleted or overwritten content remains available as historical versions that can subsequently be restored.
Encryption protects confidentiality of stored data but does not provide logical deletion recovery. A private bucket ACL reduces unauthorized access but does not stop an authorized administrator or application from deleting an object accidentally. Lifecycle rules automate transitions or deletion according to defined policies; improperly configured lifecycle rules can themselves delete data, so they are not the primary protection mechanism requested here.
For particularly critical workloads, versioning can be supplemented with backup or carefully designed cross- region replication, but among the four choices, enabling OSS versioning directly addresses accidental deletion and provides recovery capability.
Study Guide reference: Core Storage Infrastructure Deep Dive; data durability, protection, and OSS object- management mechanisms.
NEW QUESTION # 16
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