Hello, fellow DevOps enthusiasts! Today, we're immersing ourselves in AWS interview intricacies. Let's elevate our understanding with precision. 🚀🔍
1. Name 5 AWS Services and Their Use Cases:
Amazon EC2 (Elastic Compute Cloud):
- Use Case: Scalable virtual servers for diverse applications.
Amazon S3 (Simple Storage Service):
- Use Case: Object storage with easy web access.
Amazon RDS (Relational Database Service):
- Use Case: Managed relational databases with ease.
AWS Lambda:
- Use Case: Execute code without managing servers.
IAM (Identity and Access Management):
- Use Case: Manage access to AWS services securely.
2. Tools for Sending Logs to the Cloud:
AWS CloudWatch:
- Role: Monitor and collect log data in real-time.
AWS CloudTrail:
- Role: Record API calls for audit and compliance.
ELK Stack (Elasticsearch, Logstash, Kibana):
- Role: Comprehensive log analysis and visualization.
3. IAM Roles - Creation and Management:
IAM roles are created via the AWS Management Console or AWS CLI.
Management: Grant permissions without long-term credentials.
4. System Upgrade/Downgrade with Zero Downtime:
Strategy: Implement Blue-Green Deployment or A/B Testing.
Tool: Leverage Auto Scaling Groups for seamless transitions.
5. Infrastructure as Code (IaC) and Its Usage:
IaC involves managing infrastructure through code.
Tools: AWS CloudFormation and Terraform are primary choices.
6. Load Balancer and Scenarios:
Types: Application, Network, Classic Load Balancers.
Scenarios: Distribute web traffic efficiently, ensure high availability.
7. CloudFormation vs. Elastic Beanstalk:
CloudFormation: Orchestrate infrastructure using templates.
Elastic Beanstalk: PaaS for simplified application deployment.
8. Security Attacks in the Cloud and Mitigation:
Discuss DDoS attacks, data breaches, and mitigation strategies.
AWS Tools: Highlight AWS WAF and IAM policies for enhanced security.
9. Recovering an EC2 Instance Without the Key:
- Options: Create an AMI, detach root volume, modify keys on another instance.
10. Gateway - Definition and Types:
Definition: Facilitate communication between different networks.
Examples: API Gateway, VPN Gateway, and Direct Connect.
11. Differences - RDS, DynamoDB, Redshift:
Amazon RDS: Managed relational databases.
DynamoDB: Fully managed NoSQL database.
Redshift: Data warehousing solution for analytics.
12. Hosting a Website on S3 - Yes or No, and Why:
- Decision Factors: Emphasize simplicity, cost-effectiveness, and scalability.
Feel the precision? Dive deep into each facet of AWS expertise! 💡📚 #AWSInterview #DevOpsChallenge #AWSKnowledge