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| Section | Weight | Objectives |
|---|---|---|
| Design Resilient Architectures | 26% | - Design scalable and loosely coupled architectures
|
| Design Secure Architectures | 30% | - Design secure access to AWS resources
|
| Design Cost-Optimized Architectures | 20% | - Design cost-optimized database solutions
|
| Design High-Performing Architectures | 24% | - Determine high-performing database solutions
|
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NEW QUESTION # 239
[Design High-Performing Architectures]
A company has an on-premises server that uses an Oracle database to process and store customer information The company wants to use an AWS database service to achieve higher availability and to improve application performance. The company also wants to offload reporting from its primary database system.
Which solution will meet these requirements in the MOST operationally efficient way?
Answer: D
Explanation:
Amazon Aurora is a fully managed relational database that is compatible with MySQL and PostgreSQL. It provides up to five times better performance than MySQL and up to three times better performance than PostgreSQL. It also provides high availability and durability by replicating data across multiple Availability Zones and continuously backing up data to Amazon S31. By using Amazon RDS deployed in a Multi-AZ instance deployment to create an Amazon Aurora database, the solution can achieve higher availability and improve application performance.
Amazon Aurora supports read replicas, which are separate instances that share the same underlying storage as the primary instance. Read replicas can be used to offload read-onlyqueries from the primary instance and improve performance. Read replicas can also beused for reporting functions2. By directing the reporting functions to the reader instances, the solution can offload reporting from its primary database system.
A . Use AWS Database Migration Service (AWS DMS) to create an Amazon RDS DB instance in multiple AWS Regions Point the reporting functions toward a separate DB instance from the pri-mary DB instance. This solution will not meet the requirement of using an AWS database service, as AWS DMS is a service that helps users migrate databases to AWS, not a database service itself. It also involves creating multiple DB instances in different Regions, which may increase complexity and cost.
B . Use Amazon RDS in a Single-AZ deployment to create an Oracle database Create a read replica in the same zone as the primary DB instance. Direct the reporting functions to the read replica. This solution will not meet the requirement of achieving higher availability, as a Single-AZ deployment does not provide failover protection in case of an Availability Zone outage. It also involves using Oracle as the database engine, which may not provide better performance than Aurora.
C . Use Amazon RDS deployed in a Multi-AZ cluster deployment to create an Oracle database Di-rect the reporting functions to use the reader instance in the cluster deployment. This solution will not meet the requirement of improving application performance, as Oracle may not provide better performance than Aurora. It also involves using a cluster deployment, which is only supported for Aurora, not for Oracle.
Reference URL: https://aws.amazon.com/rds/aurora/
NEW QUESTION # 240
A company is deploying an application that processes streaming data in near-real time. The company plans to use Amazon EC2 instances for the workload. The network architecture must be configurable to provide the lowest possible latency between nodes.
Which networking solution meets these requirements?
Answer: A
Explanation:
Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables high throughput, low-latency networking, and OS-bypass capabilities. EFAs are designed for applications that require fast inter- node communications, such as HPC, ML, and real-time analytics. EFA provides significantly lower latency than traditional networking, which is ideal for real-time streaming and processing workloads.
Reference Extract from AWS Documentation / Study Guide:
"Elastic Fabric Adapter (EFA) provides low-latency, high-throughput network communications required by high-performance computing applications, enabling fast, scalable, and tightly-coupled workloads on AWS." Source: AWS Certified Solutions Architect - Official Study Guide, EC2 Networking section.
NEW QUESTION # 241
A company has developed an API using an Amazon API Gateway REST API and AWS Lambda functions.
The API serves static and dynamic content to users worldwide. The company wants to decrease the latency of transferring content for API requests.
Options:
Answer: B
Explanation:
* A. Edge-optimized API + Caching: Reduces latency by using Amazon CloudFront for edge locations and enables caching for dynamic content. Compression reduces data transfer latency.
* B. Regional API + Caching: Increases latency for global users due to the lack of edge locations.
* C. Edge-optimized API + Reserved Concurrency: Reserved concurrency ensures Lambda availability but does not address latency for dynamic content.
* D. Regional API + Reserved Concurrency: Lacks edge optimization, increasing latency for global users.
References: Amazon API Gateway
NEW QUESTION # 242
A company is building a suite of RESTful microservices that will be exposed through public endpoints. The company requires a scalable solution to ensure that the microservices handle sudden traffic spikes from global users, minimize latency, and offload requests from the backend microservices.
Which solution will meet these requirements?
Answer: B
Explanation:
Amazon API Gateway with AWS Lambda provides a scalable serverless architecture for RESTful microservices and can automatically handle sudden changes in request volume. Adding Amazon CloudFront in front of the REST API improves performance for global users by caching eligible responses at edge locations, reducing latency, and offloading repeated requests from the backend services.
NEW QUESTION # 243
A company wants to run applications in containers in the AWS Cloud. These applications are stateless and can tolerate disruptions within the underlying infrastructure. The company needs a solution that minimizes cost and operational overhead.
What should a solutions architect do to meet these requirements?
Answer: D
NEW QUESTION # 244
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