A company Is designing its AWS workloads so that components can be updated regularly and so that changes can be made in small, reversible increments.
Which pillar of the AWS Well-Architected Framework does this design support?
Answer : C
Understanding Operational Excellence: The Operational Excellence pillar of the AWS Well-Architected Framework focuses on running and monitoring systems to deliver business value and continuously improving supporting processes and procedures.
Key Concepts of Operational Excellence:
Small, Reversible Changes: Making changes in small, incremental steps allows for easier troubleshooting and rollback if issues arise.
Regular Updates: Regularly updating components ensures that systems stay up-to-date with the latest features, security patches, and performance improvements.
Automation: Implementing automation for deployments, updates, and monitoring to reduce human error and increase efficiency.
Continuous Improvement: Encouraging continuous learning and process improvement to enhance operational processes.
Implementing Operational Excellence:
Deployment Automation: Use CI/CD pipelines to automate deployments and ensure that changes can be rolled back if necessary.
Monitoring and Logging: Implement comprehensive monitoring and logging to track system health and performance.
Incident Response: Develop a robust incident response plan to handle issues quickly and efficiently.
Documentation and Training: Maintain thorough documentation and provide training to ensure teams can effectively manage and improve operations.
AWS Well-Architected Framework: Operational Excellence Pillar
A company wants to set up its workloads to perform their intended functions and recover quickly from failure. Which pillar of the AWS Well-Architected Framework aligns with these goals?
Answer : C
Understanding the Reliability Pillar: The Reliability pillar of the AWS Well-Architected Framework focuses on the ability of a system to recover from infrastructure or service disruptions, dynamically acquire computing resources to meet demand, and mitigate disruptions such as misconfigurations or transient network issues.
Key Concepts of Reliability:
Foundations: Ensure a solid foundation on which to build, including AWS account management, limits, and networking.
Change Management: Manage changes in automation to ensure systems remain reliable during modifications.
Failure Management: Design systems to detect failures and automatically recover from them.
How to Align with Reliability Pillar:
Implement Multi-AZ Deployments: Deploy applications across multiple Availability Zones to ensure fault tolerance.
Use Auto Scaling: Automatically adjust resources to maintain system performance during demand fluctuations.
Monitor and Respond: Implement monitoring and alerting mechanisms using services like CloudWatch to detect and respond to issues proactively.
Which option is an environment that consists of one or more data centers?
Answer : B
Understanding Availability Zones (AZs): An Availability Zone is a distinct location within an AWS region that is engineered to be isolated from failures in other AZs.
Characteristics of Availability Zones:
Data Centers: Each AZ consists of one or more discrete data centers with redundant power, networking, and connectivity.
High Availability: AZs are designed for high availability, providing low-latency network connections to other zones in the same region.
Fault Isolation: They provide fault isolation and are used to deploy applications and services to ensure high availability and reliability.
Use Cases for Availability Zones:
Multi-AZ Deployments: For services like RDS, deploying in multiple AZs ensures fault tolerance.
Disaster Recovery: Setting up resources in multiple AZs helps in quick recovery from failures.
Load Balancing: Distributing traffic across AZs using Elastic Load Balancing ensures optimal performance and availability.
Which AWS resource can help a company reduce Its costs in exchange for a usage commitment when using Amazon EC2 instances?
Answer : A
How does AWS Cloud computing help businesses reduce costs? (Select TWO.)
Answer : B, E
Reducing Costs with AWS Cloud:
Capacity Adjustment (B):
Elasticity: AWS allows you to scale your resources up or down based on demand, which means you only pay for what you use. This reduces the cost of over-provisioning resources.
Auto Scaling: Automatically adjusts compute capacity based on usage, ensuring cost efficiency.
Eliminating On-Premises Costs (E):
No Infrastructure Maintenance: By using AWS, businesses do not need to invest in physical infrastructure or handle maintenance, reducing both capital and operational expenditures.
Managed Services: AWS offers managed services that reduce the need for in-house technical staff to manage and maintain infrastructure.
Which AWS services or features provide disaster recovery solutions for Amazon EC2 instances? (Select TWO.)
Answer : B, C
The correct answer isBandC. EC2 Amazon Machine Images (AMIs) and Amazon Elastic Block Store (Amazon EBS) snapshots are two AWS services that provide disaster recovery solutions for Amazon EC2 instances.
The other options are not directly related to disaster recovery for EC2 instances:
A social media company wants to protect its web application from common web exploits such as SQL injections and cross-site scripting. Which AWS service will meet these requirements?
Answer : B
The other options are not suitable for the social media company's requirements, because:
Amazon CloudWatch is a monitoring and observability service that provides data and actionable insights to monitor your applications, respond to system-wide performance changes, optimize resource utilization, and get a unified view of operational health. Amazon CloudWatch collects monitoring and operational data in the form of logs, metrics, and events, and visualizes it using automated dashboards, alarms, and notifications. However, Amazon CloudWatch does not provide a web application firewall service that can block malicious web requests.
What Is AWS WAF? - AWS WAF, AWS Firewall Manager, and AWS Shield Advanced
AWS WAF Features - AWS WAF, AWS Firewall Manager, and AWS Shield Advanced
What Is Amazon Inspector? - Amazon Inspector
What Is Amazon GuardDuty? - Amazon GuardDuty
[What Is Amazon CloudWatch? - Amazon CloudWatch]