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| Section | Weight | Objectives |
|---|---|---|
| Design Cost-Optimized Architectures | 20% | - Cost management tools
|
| Design Resilient Architectures | 26% | - Highly available architecture
|
| Design Secure Architectures | 30% | - Secure workloads and applications
|
| Design High-Performing Architectures | 24% | - Performance scaling
|
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NEW QUESTION # 12
A company is migrating some workloads to AWS. However, many workloads will remain on premises. The on-premises workloads require secure and reliable connectivity to AWS with consistent, low-latency performance.
* The company has deployed the AWS workloads across multiple AWS accounts and multiple VPCs.
* The company plans to scale to hundreds of VPCs within the next year.
* The company must establish connectivity between each of the VPCs and from the on-premises environment to each VPC.
Which solution will meet these requirements?
Answer: A
Explanation:
The optimal solution for scalable and resilient hybrid networking is to use AWS Direct Connect with a Direct Connect gateway for secure, low-latency access to AWS, and an AWS Transit Gateway to manage connectivity among hundreds of VPCs.
By associating the Transit Gateway with the Direct Connect gateway, you enable transitive routing between on-premises and all VPCs, while minimizing network complexity and maintaining high performance.
VPC peering does not scale well, and VPNs don't offer the same performance or consistency.
NEW QUESTION # 13
[Design Secure Architectures]
A company is designing a web application on AWS The application will use a VPN connection between the company's existing data centers and the company's VPCs. The company uses Amazon Route 53 as its DNS service. The application must use private DNS records to communicate with the on-premises services from a VPC. Which solution will meet these requirements in the MOST secure manner?
Answer: D
Explanation:
To meet the requirements of the web application in the most secure manner, the company should create a Route 53 Resolver outbound endpoint, create a resolver rule, and associate the resolver rule with the VPC. This solution will allow the application to use private DNS records to communicate with the on-premises services from a VPC. Route 53 Resolver is a service that enables DNS resolution between on-premises networks and AWS VPCs. An outbound endpoint is a set of IP addresses that Resolver uses to forward DNS queries from a VPC to resolvers on an on-premises network. A resolver rule is a rule that specifies the domain names for which Resolver forwards DNS queries to the IP addresses that you specify in the rule. By creating an outbound endpoint and a resolver rule, and associating them with the VPC, the company can securely resolve DNS queries for the on-premises services using private DNS records12.
The other options are not correct because they do not meet the requirements or are not secure. Creating a Route 53 Resolver inbound endpoint, creating a resolver rule, and associating the resolver rule with the VPC is not correct because this solution will allow DNS queries from on-premises networks to access resources in a VPC, not vice versa. An inbound endpoint is a set of IP addresses that Resolver uses to receive DNS queries from resolvers on an on-premises network1. Creating a Route 53 private hosted zone and associating it with the VPC is not correct because this solution will only allow DNS resolution for resources within the VPC or other VPCs that are associated with the same hosted zone. A private hosted zone is a container for DNS records that are only accessible from one or more VPCs3. Creating a Route 53 public hosted zone and creating a record for each service to allow service communication is not correct because this solution will expose the on-premises services to the public internet, which is not secure. A public hosted zone is a container for DNS records that are accessible from anywhere on the internet3.
Reference:
Resolving DNS queries between VPCs and your network - Amazon Route 53
Working with rules - Amazon Route 53
Working with private hosted zones - Amazon Route 53
NEW QUESTION # 14
A company's facility has badge readers at every entrance throughout the building. When badges are scanned, the readers send a message over HTTPS to indicate who attempted to access that particular entrance.
A solutions architect must design a system to process these messages from the sensors. The solution must be highly available, and the results must be made available for the company's security team to analyze.
Which system architecture should the solutions architect recommend?
Answer: C
Explanation:
Deploy Amazon API Gateway as an HTTPS endpoint and AWS Lambda to process and save the messages to an Amazon DynamoDB table. This option provides a highly available and scalable solution that can easily handle large amounts of data. It also integrates with other AWS services, making it easier to analyze and visualize the data for the security team.
NEW QUESTION # 15
A company has an e-commerce site. The site is designed as a distributed web application hosted in multiple AWS accounts under one AWS Organizations organization. The web application is comprised of multiple microservices. All microservices expose their AWS services either through Amazon CloudFront distributions or public Application Load Balancers (ALBs). The company wants to protect public endpoints from malicious attacks and monitor security configurations. Which solution will meet these requirements with the LEAST operational overhead?
Answer: B
Explanation:
Key Requirements:
Protect public endpoints (CloudFront distributions and ALBs) frommalicious attacks.
Centralizedmanagementacross multiple accounts in an organization.
Ability tomonitor security configurationseffectively.
Minimizeoperational overhead.
Analysis of Options
Option A:
AWS WAF:Protects web applications by filtering and blocking malicious requests. Rules can be applied to both ALBs and CloudFront distributions.
AWS Firewall Manager:Enables centralized management of WAF rules across multiple accounts in an AWS Organizations organization. It simplifies rule deployment, avoiding the need to configure rules individually in each account.
AWS Config:Monitors compliance by using rules that check Regional and global WAF configurations. Ensures that security configurations align with organizational policies.
Operational Overhead:Centralized management and automated monitoring reduce the operational burden.
Correct Approach:Meets all requirements with the least overhead.
Option B:
This approach involves applying WAF rules in each account manually.
While AWS Config and AWS Security Hub provide monitoring capabilities, managing individual WAF configurations in multiple accounts introduces significant operational overhead.
Incorrect Approach:Higher overhead compared to centralized management with AWS Firewall Manager.
Option C:
Similar to Option A but includesAmazon Inspector, which is not designed for monitoring WAF configurations.
AWS Security Hubis appropriate for monitoring but is redundant when Firewall Manager and Config are already in use.
Incorrect Approach:Adds unnecessary complexity and does not focus on monitoring WAF specifically.
Option D:
AWS Shield Advanced:Focuses on mitigating large-scale DDoS attacks but does not provide the fine-grained web application protection offered by WAF.
AWS Config:Can monitor Shield Advanced configurations but does not fulfill the WAF monitoring requirements.
Incorrect Approach:Does not address the need for WAF or centralized rule management.
Why Option A is Correct
Protection:
AWS WAF provides fine-grained filtering and protection against SQL injection, cross-site scripting, and other web vulnerabilities.
Rules can be applied at both ALBs and CloudFront distributions, covering all public endpoints.
Centralized Management:
AWS Firewall Manager enables security teams to centrally define and manage WAF rules across all accounts in the organization.
Monitoring:
AWS Config ensures compliance with WAF configurations by checking rules and generating alerts for misconfigurations.
Operational Overhead:
Centralized management via Firewall Manager and automated compliance monitoring via AWS Config greatly reduce manual effort.
AWS Solution Architect Reference
AWS WAF Documentation
AWS Firewall Manager Documentation
AWS Config Best Practices
AWS Organizations Documentation
NEW QUESTION # 16
A company runs an application on a group of Amazon EC2 instances behind an Application Load Balancer (ALB). The company wants to protect the application against layer 7 DDoS attacks.
Which solution will meet this requirement?
Answer: C
Explanation:
Protecting an application from layer 7 (application layer) DDoS attacks is best achieved by using AWS WAF (Web Application Firewall), which provides customizable protection against common web exploits including DDoS attacks at the application layer. AWS WAF supports managed rule groups maintained by AWS, which offer robust, tested protections against OWASP top 10 vulnerabilities and common attack patterns without requiring extensive manual rule creation.
While AWS Shield Standard provides basic network-layer DDoS protection automatically at no additional charge, it does not offer application-layer filtering capabilities. Therefore, option A alone is insufficient.
Option B, involving only custom rules, requires significant operational overhead and expertise, whereas AWS managed rules offer a turnkey solution with ongoing updates from AWS security teams.
Option D, using CloudFront in front of the ALB, can provide additional protection benefits such as caching and geographic restrictions, but the question specifically asks for protecting against layer
7 DDoS on the ALB directly. CloudFront plus WAF is a valid enhanced solution, but the direct and recommended answer in AWS official documents is to use AWS WAF managed rules directly with ALB for application-level protection.
NEW QUESTION # 17
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