Pass the Amazon Web Services AWS Certified Foundational CLF-C02 Questions and answers with CertsForce

Amazon Route 53 is a scalable Domain Name System (DNS) web service that routes end-user requests to infrastructure running in AWS. It is specifically designed to host domain names and manage DNS records, making it the ideal service for hosting the domain name of a public website. AWS Lambda, CloudFront, and Direct Connect serve different functions and are not DNS hosting services.

Rightsizing involves adjusting instance types based on actual utilization to optimize costs and performance. Changing the size and type of EC2 instances according to utilization data achieves this with minimal operational overhead. Adding instances or changing payment methods does not directly address instance resizing, and reprovisioning with larger instances may not be optimal based on actual usage.

TheRehostmigration strategy, often referred to as “lift-and-shift,” involves moving applications to the cloud with minimal or no modifications. This approach is suitable when a company wants to migrate legacy workloads to AWS without altering them. Other strategies, such asRepurchase,Replatform, andRefactor, involve making changes to the application or adopting different services, which is not aligned with the requirement to avoid modifications.

The reliability pillar of the AWS Well-Architected Framework includes the principle of testing recovery procedures to ensure systems can effectively recover from failures. Regular testing of recovery processes helps verify that systems are resilient and can handle potential disruptions. The other options align with different pillars like cost optimization and operational excellence.

AWS Budgets allows organizations to set custom cost and usage budgets and receive notifications when they exceed predefined thresholds. This feature helps the finance department monitor spending and manage budget forecasts effectively. AWS Cost and Usage Reports and Cost Explorer provide detailed billing data but do not include budget notifications. Consolidated billing in AWS Organizations is useful for aggregating billing across accounts but does not provide budget alerts.

AWS Systems Manager offers the capability to automate patching for Amazon EC2 instances, including Windows instances, through Patch Manager. It can automate patching tasks, schedule updates, and apply patches based on specified baselines. AWS Organizations and Control Tower focus on account management and governance, while Elastic Load Balancing (ELB) is unrelated to patch management.

Amazon Rekognition is a machine learning service that can analyze and recognize objects, people, text, scenes, and activities in images and videos. It is specifically designed for organizing, categorizing, and searching large volumes of images based on various attributes. Amazon Transcribe is for speech-to-text, Amazon Aurora is a relational database service, and Amazon QuickSight is a business intelligence tool for data visualization.

Cost Explorer enables visualization and analysis of AWS costs and usage over specific time periods. It provides detailed reports, trends, and forecasts for cost management. Consolidated billing and AWS Organizations are useful for billing management across accounts, while AWS Budgets helps set spending thresholds but does not provide visualization tools for cost and usage.

Refactoring involves re-architecting and modifying an application to take advantage of cloud-native features. In this case, the company wants to modernize a monolithic application by breaking it into microservices. This process aligns with the Refactor strategy, which is aimed at modernizing and re-architecting applications. Rehost, Repurchase, and Replatform do not involve the level of re-architecting needed to move from a monolithic to a microservices architecture.

Amazon RDS (Relational Database Service) supports SQL Server and other relational databases while handling administrative tasks such as backups, patching, monitoring, and scaling. This allows the company to migrate its SQL Server database without managing the infrastructure manually. Amazon EC2for SQL Server would require more administrative overhead, as the company would be responsible for the maintenance. Amazon DynamoDB and Aurora do not support SQL Server directly.

AWS WAF Overview:

AWS Web Application Firewall (WAF) allows users to create rules to block or allow traffic based on IP addresses, request patterns, and other conditions.

It is ideal for blocking traffic from a specific IP address.

Why AWS WAF Meets the Requirement:

The company can create a WAF rule to block traffic from the malicious IP address.

WAF integrates with services like Amazon CloudFront, Application Load Balancer, and API Gateway.

Why Other Options Are Incorrect:

A. AWS Shield:Protects against DDoS attacks but does not allow custom IP blocking.

B. AWS Config:Monitors resource configurations but does not block IPs.

C. Amazon GuardDuty:Detects threats but does not block traffic directly.

AWS CloudFormation allows users to define and deploy infrastructure as code, creating highly repeatable and consistent configurations across environments. It uses templates to automate the provisioning and management of resources. CodeDeploy focuses on application deployment, and Systems Manager offers operational management, but neither provides templated infrastructure deployment at the same level as CloudFormation.