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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Design Secure Architectures | 30% | - Determine appropriate data security controls
|
| Topic 2: Design Resilient Architectures | 26% | - Design scalable and loosely coupled architectures
|
| Topic 3: Design High-Performing Architectures | 24% | - Determine high-performing and/or scalable network architectures
|
| Topic 4: Design Cost-Optimized Architectures | 20% | - Design cost-optimized compute solutions
|
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NEW QUESTION # 724
[Design Secure Architectures]
A news company that has reporters all over the world is hosting its broadcast system on AWS. The reporters send live broadcasts to the broadcast system. The reporters use software on their phones to send live streams through the Real Time Messaging Protocol (RTMP).
A solutions architect must design a solution that gives the reporters the ability to send the highest quality streams The solution must provide accelerated TCP connections back to the broadcast system.
What should the solutions architect use to meet these requirements?
Answer: D
Explanation:
AWS Global Accelerator: This service provides a global fixed entry point to your applications and optimizes the path to your application through the AWS global network, reducing latency and improving performance.
Accelerated TCP Connections:
Global Accelerator uses the AWS global network to route traffic to the nearest edge location, improving the performance and reliability of your live streams.
It provides static IP addresses that act as a fixed entry point to your application, simplifying DNS management.
High-Quality Streams:
By leveraging Global Accelerator, reporters can send live streams with the highest quality and low latency.
This service automatically reroutes traffic to the nearest available AWS Region, ensuring consistent performance even during traffic spikes or failures.
Operational Efficiency: Using Global Accelerator simplifies the network setup and provides an optimized path for live streams without the need for complex configurations, making it an efficient solution for real-time streaming applications.
Reference:
AWS Global Accelerator
How Global Accelerator Works
NEW QUESTION # 725
An ecommerce company is migrating its on-premises workload to the AWS Cloud. The workload currently consists of a web application and a backend Microsoft SQL database for storage.
The company expects a high volume of customers during a promotional event. The new infrastructure in the AWS Cloud must be highly available and scalable.
Which solution will meet these requirements with the LEAST administrative overhead?
Answer: B
Explanation:
To ensure high availability and scalability, the web application should run in an Auto Scaling group across two Availability Zones behind an Application Load Balancer (ALB). The database should be migrated to Amazon RDS with Multi-AZ deployment, which ensures fault tolerance and automatic failover in case of an AZ failure. This setup minimizes administrative overhead while meeting the company's requirements for high availability and scalability.
* Option A: Read replicas are typically used for scaling read operations, and Multi-AZ provides better availability for a transactional database.
* Option B: Replicating across AWS Regions adds unnecessary complexity for a single web application.
* Option D: EC2 instances across three Availability Zones add unnecessary complexity for this scenario.
AWS References:
* Auto Scaling Groups
* Amazon RDS Multi-AZ
NEW QUESTION # 726
An application consists of multiple EC2 instances in private subnets in different availability zones.
The application uses a single NAT Gateway for downloading software patches from the Internet to the instances. There is a requirement to protect the application from a single point of failure when the NAT Gateway encounters a failure or if its availability zone goes down.
How should the Solutions Architect redesign the architecture to be more highly available and cost- effective
Answer: A
Explanation:
A NAT Gateway is a highly available, managed Network Address Translation (NAT) service for your resources in a private subnet to access the Internet. NAT gateway is created in a specific Availability Zone and implemented with redundancy in that zone.
You must create a NAT gateway on a public subnet to enable instances in a private subnet to connect to the Internet or other AWS services, but prevent the Internet from initiating a connection with those instances.
If you have resources in multiple Availability Zones and they share one NAT gateway, and if the NAT gateway's Availability Zone is down, resources in the other Availability Zones lose Internet access. To create an Availability Zone-independent architecture, create a NAT gateway in each Availability Zone and configure your routing to ensure that resources use the NAT gateway in the same Availability Zone.
Hence, the correct answer is: Create a NAT Gateway in each availability zone. Configure the route table in each private subnet to ensure that instances use the NAT Gateway in the same availability zone. The option that says: Create a NAT Gateway in each availability zone. Configure the route table in each public subnet to ensure that instances use the NAT Gateway in the same availability zone is incorrect because you should configure the route table in the private subnet and not the public subnet to associate the right instances in the private subnet.
The options that say: Create two NAT Gateways in each availability zone. Configure the route table in each public subnet to ensure that instances use the NAT Gateway in the same availability zone and Create three NAT Gateways in each availability zone. Configure the route table in each private subnet to ensure that instances use the NAT Gateway in the same availability zone are both incorrect because a single NAT Gateway in each availability zone is enough. NAT Gateway is already redundant in nature, meaning, AWS already handles any failures that occur in your NAT Gateway in an availability zone.
References:
https://docs.aws.amazon.com/vpc/latest/userguide/vpc-nat-gateway.html
https://docs.aws.amazon.com/vpc/latest/userguide/vpc-nat-comparison.html Check out this Amazon VPC Cheat Sheet:
https://tutorialsdojo.com/amazon-vpc/
NEW QUESTION # 727
A company needs to give a globally distributed development team secure access to the company's AWS resources in a way that complies with security policies.
The company currently uses an on-premises Active Directory for internal authentication. The company uses AWS Organizations to manage multiple AWS accounts that support multiple projects.
The company needs a solution to integrate with the existing infrastructure to provide centralized identity management and access control.
Which solution will meet these requirements with the LEAST operational overhead?
Answer: B
Explanation:
UsingAD ConnectorwithAWS IAM Identity Center(formerly AWS Single Sign-On) allows the company to leverage its existingon-premises Active Directoryfor centralized identity management and access control. AD Connector acts as a proxy to the on-premises AD withoutrequiring additional infrastructure or complex setup.
This solution integrates seamlessly with AWS, allowing the development team to use their existing AD credentials to access AWS resources across multiple accounts managed by AWS Organizations. The permissions for AWS resources can be managed centrally through IAM Identity Center by configuring permission sets.
This solution provides:
Least operational overhead: AD Connector is fully managed, and IAM Identity Center allows centralized management of permissions across accounts.
Secure access: The solution complies with security policies by using existing AD authentication mechanisms.
Option A (AWS Managed AD): Setting up a fully managed AWS AD and establishing a trust is more complex and involves additional operational overhead.
Option B (IAM Users): Manually managing IAM users and permissions is less scalable and increases operational complexity.
Option D (Cognito): Amazon Cognito is more suited for user-facing applications rather than internal identity management for AWS resources.
AWS References:
AD Connector with IAM Identity Center
AWS IAM Identity Center
NEW QUESTION # 728
A company is developing a serverless web application that gives users the ability to interact with real-time analytics from online games. The data from the games must be streamed in real time. The company needs a durable, low-latency database option for user data. The company does not know how many users will use the application. Any design considerations must provide response times of single-digit milliseconds as the application scales.
Which combination of AWS services will meet these requirements? (Select TWO.)
Answer: A,C
Explanation:
Amazon Kinesis allows real-time ingestion of game events at scale, while Amazon DynamoDB provides millisecond-latency access to user data, automatically scaling with demand. This combination ensures real- time processing and fast data retrieval without managing infrastructure.
Reference: AWS Documentation - Real-Time Processing with Kinesis and Low-Latency Databases with DynamoDB
NEW QUESTION # 729
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