Master cloud concepts, AWS services, security, and pricing to ace the CLF-C02 exam
Start Practicing NowUnderstand cloud computing concepts, AWS global infrastructure, and cloud economics
Learn AWS compute, storage, database, and networking services at a foundational level
Master the AWS Shared Responsibility Model, IAM basics, and security best practices
Select AWS Cloud Practitioner (CLF-C02) as your interview topic and customize the difficulty level
Answer realistic AWS Cloud Practitioner (CLF-C02) interview questions in a simulated environment
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AWS Cloud concepts and value proposition
AWS global infrastructure (Regions, AZs)
EC2, S3, RDS, and core services overview
Shared Responsibility Model
IAM users, groups, roles, and policies
AWS pricing models and cost management
AWS support plans
Basic security and compliance concepts
A: AWS is responsible for 'security OF the cloud' (hardware, software, networking, facilities). Customers are responsible for 'security IN the cloud' (customer data, platform/applications, IAM, encryption, network traffic protection, OS/firewall config). Think: AWS manages infrastructure; you manage what you put in it.
A: Regions are geographic areas (e.g., us-east-1) with multiple isolated locations called Availability Zones (AZs). Each AZ is one or more discrete data centers with redundant power, networking, and connectivity. Design for multi-AZ deployments for high availability. Some services are regional (VPC, S3), others are AZ-specific (EC2, EBS).
A: On-Demand: pay per hour/second, no commitment. Reserved Instances: 1-3 year commitment, up to 72% discount. Spot Instances: bid for unused capacity, up to 90% discount but can be terminated. Savings Plans: commit to spend amount, flexible across instance families. Dedicated Hosts: physical server, for compliance/licensing.
A: IAM (Identity and Access Management) controls access to AWS resources. Users: individual identities. Groups: collections of users with same permissions. Roles: temporary credentials for AWS services/apps. Policies: JSON documents defining permissions (who can do what on which resources). Best practice: use roles over users, enable MFA, principle of least privilege.
A: S3 Standard: frequently accessed, low latency. S3 Intelligent-Tiering: auto-moves between tiers. S3 Standard-IA: infrequent access, lower cost. S3 One Zone-IA: cheaper but single AZ. S3 Glacier Instant: archive with instant retrieval. S3 Glacier Flexible: minutes to hours retrieval. S3 Glacier Deep Archive: cheapest, 12-hour retrieval. Choose based on access frequency and retrieval needs.
A: Always Free: Lambda (1M requests/month), DynamoDB (25GB storage), CloudFront (1TB transfer). 12 Months Free: EC2 t2.micro/t3.micro (750 hours/month), S3 (5GB), RDS (750 hours). Trials: SageMaker (2 months), Lightsail (1 month). Note: services like EBS, data transfer beyond limits incur charges even in Free Tier.
A: Basic: free, AWS documentation, forums, Trusted Advisor (7 checks). Developer: $29/month, email support, 12-24h response. Business: $100/month, 24/7 phone/chat, 1h response for urgent, full Trusted Advisor, Infrastructure Event Management. Enterprise: $15k/month, 15min critical response, TAM, Concierge Support, training.
A: CloudFormation is Infrastructure as Code (IaC) service. Define AWS resources in JSON/YAML templates. Benefits: version control infrastructure, replicate environments, automated deployment, rollback capability. Templates include Resources (required), Parameters, Mappings, Outputs. Creates stacks of related resources. No additional charge - pay only for resources created.
Focus on cloud concepts and the value proposition of cloud computing
Understand the Well-Architected Framework pillars at a high level
Know the basics of major AWS services - you don't need deep technical knowledge
Memorize pricing models and cost optimization strategies
Study the Shared Responsibility Model thoroughly - it's heavily tested
Review AWS Support plans and know which scenarios need which plan
Understand when to use each storage class and compute option
Practice with AWS Free Tier to get hands-on experience
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