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DOMAIN 1 · 30% OF EXAMDesign Secure Architectures
🔑 IAM & Identity · 11
users, groups, roles, policies, least privilege, MFA, principals, identity federation
temporary credentials, AssumeRole, AssumeRoleWithSAML, AssumeRoleWithWebIdentity, GetSessionToken, GetFederationToken, cross-account, role chaining
Active Directory, Managed Microsoft AD, AD Connector, Simple AD, LDAP, Kerberos, Group Policy, on-premises AD
SSO, single sign-on, multiple accounts, federation, SAML 2.0, Active Directory, SaaS integration, EC2 Windows
IAM Access Analyzer, external access, unused access, zone of trust, public access, cross-account exposure, resource shared external, automated reasoning
AWS RAM, Resource Access Manager, share resources, VPC sharing, shared subnets, Transit Gateway sharing, Route 53 Resolver rules, cross-account sharing
IAM Roles Anywhere, on-premises, X.509 certificate, trust anchor, hybrid, temporary credentials, no access keys, non-AWS workload
AWS Artifact, compliance reports, SOC, ISO 27001, PCI DSS, FedRAMP, BAA, HIPAA
User Pools, Identity Pools, OAuth, JWT, federated identity, MFA, STS, temp credentials
cross-account sharing, shared subnets, Transit Gateway sharing, no resource duplication, AWS Organizations, centralized resources
multi-account, SCPs, guardrails, Control Tower, management account, OU, management account exemption, SCP cannot grant
🛡️ Network Security · 14
stateful, instance-level, allow only, custom SG default, inbound denied, outbound allowed
stateless, subnet-level, allow & deny, numbered rules, explicit both ways, ephemeral ports, explicit deny, block IP
Layer 7, SQL injection, XSS, rate limiting, managed rules, ALB, CloudFront, URI-specific rate-based rule
DDoS, Layer 3/4, Shield Standard, Shield Advanced, DRT, always-on, Shield Standard free, Shield Advanced paid
deep packet inspection, stateful, stateless, VPC-level, intrusion prevention, IDS/IPS, domain filtering, Suricata
VPC Flow Logs, network monitoring, ACCEPT, REJECT, metadata, CloudWatch Logs, S3, Data Firehose
threat detection, ML, CloudTrail logs, VPC Flow Logs, no agents, findings, S3 Protection, management events
security investigation, forensics, GuardDuty findings, root cause, behavior graph, post-incident
vulnerability scanning, CVE, EC2, ECR, Lambda, continuous, network reachability, package vulnerability
PII detection, sensitive data, S3, ML-based, data privacy, GDPR, data discovery, policy findings
Security Hub, aggregate findings, single pane of glass, compliance score, CIS, PCI DSS, FSBP, ASFF
Firewall Manager, central firewall, across accounts, Organization wide, WAF policy, Shield Advanced, security group policy, Network Firewall policy
penetration testing, pentest, security assessment, AUP, Acceptable Use Policy, no prior approval, 8 services, prohibited activities
security stack, defense in depth, layered security, custom rules, suppression rules, custom data identifier, threat IP list, integration
🔐 Data Protection · 8
encryption at rest, CMK, key rotation, SSE-KMS, envelope encryption, CloudTrail audit, asymmetric keys, symmetric keys
auto-rotation, credentials, API keys, no hardcoded secrets, Lambda integration, custom rotation, on-premises database, Parameter Store
WORM, compliance, retention period, Governance mode, Compliance mode, legal hold, versioning required, BypassGovernanceRetention
Vault Lock, Vault Access Policy, WORM, compliance, immutable, retention, Glacier archive, in-progress state
Redshift, KMS, encryption at rest, SSL TLS, in transit, AES-256, data warehouse, DataShare
API audit, who did what, compliance, forensics, account activity, 90-day retention, CloudTrail Lake, SQL query
SSL, TLS, HTTPS, free certificate, auto-renewal, ALB, CloudFront, API Gateway
dedicated HSM, FIPS 140-2 Level 3, customer control, single-tenant, hardware security, TDE, Oracle RDS, SQL Server RDS
🔗 Connectivity · 3
dedicated connection, private, consistent latency, 1Gbps/10Gbps, no internet, vs VPN, IPSec backup, data transfer cost
IPSec, encrypted, internet-based, Virtual Private Gateway, Customer Gateway, Transit Gateway, two tunnels, quick setup
Client VPN, user authentication, OpenVPN, SAML, authorization rules, per-user access, remote access, temporary access
🏘️ VPC & Networking · 11
VPC, CIDR, subnet, public, private, isolated network, default VPC, private network
CIDR, subnet mask, IP addressing, /24, /26, /27, 5 reserved IPs, usable hosts
Private IP, Public IP, Elastic IP, EIP, static IP, consistent public IP, Stop Start IP change, failover IP
IGW, internet gateway, public subnet, bidirectional, free, 0.0.0.0/0
NAT, outbound only, private subnet, Elastic IP, paid, no inbound, bastion host, cross-AZ cost
route table, routing, 0.0.0.0/0, local route, subnet association, main route table
SG, NACL, stateful, stateless, instance-level, subnet-level, deny, defense-in-depth
packet journey, traffic flow, laluan packet, order of evaluation, IGW route table NACL SG, inbound order, outbound order, public subnet
VPC peering, cross-account, cross-region, non-transitive, no IP overlap, private routing
Transit Gateway, hub, transitive routing, many VPCs, replace peering mesh, on-premises, cross-account, ECMP
VPC endpoint, Gateway endpoint, Interface endpoint, PrivateLink, S3, DynamoDB, no internet, free
DOMAIN 2 · 26% OF EXAMDesign Resilient Architectures
⚡ High Availability & Scaling · 10
region, availability zone, AZ, AZ ID, edge location, local zone, wavelength, global infrastructure
horizontal scaling, scale out/in, launch template, scaling policies, desired capacity, min/max, OldestLaunchTemplate, termination policy
automatic failover, standby, different AZ, sync replication, same endpoint, HA only, automated backups, manual snapshot
read scaling, async replication, cross-region, up to 15 replicas, read-only, multi-region, promote to master
connection pooling, too many connections, Lambda scaling, idle connections, connection multiplexing, faster failover, IAM authentication, Secrets Manager
global routing, AWS backbone, anycast, static IP, TCP/UDP, failover <30s, two static IPs, IP caching
MySQL compatible, PostgreSQL compatible, 6 copies, 3 AZs, auto storage 256 TiB, fast failover, 15 read replicas, Global Database
scale to zero, ACU, pay per second, intermittent, dev/test, auto-pause, variable traffic, v1 vs v2
NoSQL, key-value, serverless, millisecond latency, DAX, Global Tables, streams, auto-scale
DynamoDB Accelerator, microsecond latency, in-memory cache, read caching, drop-in compatible, DAX vs ElastiCache
🔄 Disaster Recovery Patterns · 5
RPO: hours/days, RTO: hours, lowest cost, no standby infra, S3/Glacier backup, DR spectrum, Pilot Light, Warm Standby
RPO: minutes, RTO: minutes-hours, core DB running, app servers off, medium cost, financial institute, budget concerns, 20 minutes RTO
RPO: seconds/minutes, RTO: minutes, scaled-down active, quick scale up, higher cost
RPO: near-zero, RTO: seconds, full capacity both, highest cost, mission-critical, zero downtime
AWS DRS, Elastic Disaster Recovery, CloudEndure Disaster Recovery, continuous replication, block-level replication, failover, failback, staging area
🗂️ Backup & Storage Resilience · 8
centralized backup, backup plans, backup vault, vault lock, WORM, immutable backup, ransomware protection, retention
versioning, CRR, SRR, delete marker, MFA Delete, accidental deletion, cross-region replication, same-region replication
incremental backup, point-in-time, cross-AZ, cross-region copy, EC2 recovery, Snapshot Archive, archive tier, Fast Snapshot Restore
Windows SMB, NTFS, Active Directory, DFS, VSS, Lustre HPC, Scratch, Persistent
hybrid storage, S3 File Gateway, FSx File Gateway, Volume Gateway, Tape Gateway, cached volume, stored volume, VTL
data migration, automated transfer, S3, EFS, FSx, NFS, SMB, HDFS
database migration, minimal downtime, homogeneous, heterogeneous, Schema Conversion Tool, SCT, CDC, change data capture
Snowcone, Snowball Edge, Snowmobile, physical transfer, petabyte, edge computing, offline migration, OpsHub
🚚 Migration & Transfer · 4
SFTP, FTP, FTPS, AS2, S3 backend, EFS backend, managed FTP, legacy protocol
MGN, Application Migration Service, lift-and-shift, rehost, server migration, EC2 migration, block replication, CloudEndure
migration tracking, single pane of glass, dashboard, home region, strategy recommendations, orchestrator, refactor spaces, pricing
Outposts, Outposts rack, Outposts server, on-premises AWS, data residency, compliance, cannot migrate, local processing
DOMAIN 3 · 24% OF EXAMDesign High-Performing Architectures
🖥️ Compute · 18
full control, custom OS, lift and shift, placement groups, cluster/partition/spread, pricing, per-second billing, per-hour Windows
serverless, event-driven, 15-min max, reserved concurrency, provisioned concurrency, cold start, snapstart, Lambda SnapStart
PaaS, deploy app, developer friendly, auto EC2+ALB+ASG, free service, deployment policy, all at once, rolling
Docker, containers, microservices, task definition, JSON template, Fargate, EC2 launch type, service
Kubernetes, K8s, container orchestration, IRSA, IAM Roles for Service Accounts, pod identity, ECS vs EKS, control plane cost
EKS Anywhere, EKS Distro, ECS Anywhere, on-premises Kubernetes, hybrid containers
AWS Load Balancer Controller, ALB, NLB, Ingress, path-based routing, EKS, Kubernetes, Layer 7
bootstrap, launch script, cloud-init, first boot, initialization, 16KB limit, user data vs metadata, auto-configure
hibernation, RAM save, EBS root, fast resume, in-memory state, encrypted root volume, stop start reboot terminate, instance lifecycle
169.254.169.254, instance info, IMDSv2, IMDSv1, hostname, IP address, IAM role name, SSRF
Recycle Bin, AMI recovery, EBS snapshot recovery, accidental deletion, retention period, retention rule, Data Lifecycle Manager, DLM
AWS Batch, batch computing, long-running job, managed, job queue, job definition, compute environment, EC2 fleet
serverless containers, ECS, EKS, no EC2 management, pay per vCPU/memory, Fargate Spot, vs Lambda, no time limit
container registry, Docker images, private registry, IAM integration, image scanning, lifecycle policy, immutable tags, replication
ephemeral, temporary storage, high IOPS, NVMe, scratch disk, data lost on stop, physically attached, no snapshot
ENI, ENA, EFA, network interface, virtual NIC, OS-bypass, libfabric, MPI
Lambda@Edge, edge computing, CloudFront, Viewer Request, Viewer Response, Origin Request, Origin Response, CloudFront Functions
tenancy, shared, dedicated instance, dedicated host, single-tenant, BYOL, bring your own license, Oracle
💾 Storage · 10
block storage, single EC2, persistent disk, instance store, ephemeral, Elastic Volumes, resize, encryption
gp3, gp2, io2, io1, io2 Block Express, st1, sc1, Magnetic
shared storage, multiple EC2, NFS, General Purpose, Max I/O, Provisioned Throughput, Bursting Throughput, Elastic Throughput
object storage, 11 nines durability, strong consistency, bucket policy, block public access, versioning, CRR, SRR
S3 access control, IAM policy, bucket policy, ACL, access control list, block public access, BPA, cross-account
archiving, cold storage, Glacier Instant Retrieval, Glacier Flexible Retrieval, Glacier Deep Archive, restore job, Expedited, Standard
S3 Standard, Standard-IA, One Zone-IA, Intelligent-Tiering, S3 Express One Zone, Glacier Instant Retrieval, Glacier Flexible Retrieval, Deep Archive
lifecycle, transition rule, expiration rule, auto-move, auto-delete, age-based, storage class transition, transition waterfall
CORS, cross-origin, browser security, AllowedOrigin, Access-Control-Allow-Origin, web app, domain, bucket CORS
presigned URL, temporary access, no credentials, IAM credentials, expiry time, download, upload, PUT
🌐 Networking & Delivery · 6
CDN, edge location, low latency, static content, OAC, Origin Access Control, Lambda@Edge, CloudFront Functions
ELB, Elastic Load Balancing, ELB vs ALB, EC2 behind ELB, EC2 behind ALB, load balancer types, ALB vs NLB, path-based routing
TCP, UDP, TCP_UDP, TLS, QUIC, layer 4, static IP, Elastic IP
GWLB, Gateway Load Balancer, layer 3, IP packets, GENEVE, GENEVE 6081, port 6081, virtual appliance
DNS, domain, routing policy, failover, Alias record, CNAME, apex domain, root domain
failover, active-passive, health check, weighted, latency-based, geolocation, simple, Evaluate Target Health
📨 Messaging & Serverless · 12
queue, decouple, async, pull-based, visibility timeout, FIFO, DLQ, at-least-once
pub/sub, push notification, fan-out, broadcast, topic, subscription, filter policy, message filtering
real-time, streaming, data pipeline, analytics, Data Streams, Firehose, shards, retention
Kinesis Video Streams, KVS, video stream, CCTV, camera, drone, dashcam, video doorbell
REST API, HTTP API, WebSocket, real-time, bidirectional, API management, throttling, usage plans
event bus, event-driven, cron schedule, rule-based routing, decouple, SaaS integration, CloudWatch Events, schema registry
workflow, state machine, orchestration, retry logic, error handling, Lambda orchestration, visual workflow, Distributed Map
ActiveMQ, RabbitMQ, AMQP, MQTT, lift-and-shift, message broker, legacy migration, open protocols
delivery stream, S3 delivery, Redshift, OpenSearch, no consumer code, buffer, transform with Lambda, Parquet conversion
AppFlow, SaaS integration, Salesforce, ServiceNow, no-code connector, data transfer, bidirectional, S3
GraphQL, real-time, subscriptions, WebSocket, offline sync, conflict resolution, resolvers, DynamoDB
fullstack, CI/CD, frontend hosting, mobile, React, Next.js, Cognito, AppSync
🏗️ Infrastructure · 8
IaC, Infrastructure as Code, template, stack, rollback, repeatable deployment, Lambda-backed custom resource, AMI lookup
Run Command, Patch Manager, Parameter Store, Session Manager, no SSH, fleet management, parallel execution, AmazonSSMManagedInstanceCore
compliance, audit, config changes, config rules, resource history, drift detection, auto-remediation, conformance packs
Git, source control, version control, private repo, IAM integration, pricing
CI/CD, CodePipeline, CodeBuild, CodeDeploy, DevOps, automation, pipeline, blue-green
metrics, logs, alarms, dashboards, CPU monitoring, custom metrics, Log Groups, VPC Flow Logs
distributed tracing, service map, latency analysis, microservices, Lambda tracing, bottleneck, debugging, SQS tracing
service health, personal health dashboard, scheduled changes, account events, EventBridge, operational issues, maintenance notification
🗄️ Databases · 6
purpose-built database, OLTP vs OLAP, relational, NoSQL, key-value, document, graph, wide-column
MongoDB compatible, document store, JSON, BSON, collections, NoSQL, MongoDB migration, DocumentDB pricing
graph database, social network, fraud detection, fraud ring, recommendation engine, Gremlin, SPARQL, openCypher
Cassandra compatible, CQL, wide column, IoT telemetry, time-series, high write throughput, serverless, on-demand capacity
time-series, Timestream, IoT telemetry, sensor data, metrics over time, memory store, magnetic store, tiered storage
MemoryDB, durable in-memory, Redis, Valkey, primary database, microsecond reads, Multi-AZ transactional log, in-memory database
📊 Analytics & Streaming · 12
data warehouse, OLAP, columnar, MPP, RA3, managed storage, RMS, Redshift Spectrum
QuickSight, BI, dashboard, forecasting, ML Insights, visualization, S3 direct, SPICE
serverless SQL, S3 queries, pay per scan, Parquet, ORC, Glue Catalog, log analysis, ad-hoc
ETL, data catalog, Spark, serverless, crawler, classifier, ETL job, DataBrew
Lake Formation, row-level security, column-level, cell-level, fine-grained access, data lake, Glue Data Catalog, secure data lake
Hadoop, Spark, Hive, Presto, HBase, big data, cluster, petabyte
search engine, log analytics, Elasticsearch compatible, Kibana, OpenSearch Dashboards, real-time analytics, full-text search, fuzzy
Kafka, managed, streaming, event streaming, migration, Kafka API, real-time pipeline, brokers
Kendra, enterprise search, ML search, semantic search, natural language query, FAQs, unstructured documents, intelligent search
Data Exchange, third-party data, data marketplace, data subscription, market data, financial data, data products, S3 delivery
Polly, Transcribe, Lex, Rekognition, Comprehend, Comprehend Medical, Textract, Translate
SageMaker, custom ML, training, AutoML, Autopilot, hyperparameter tuning, model deployment, MLOps
DOMAIN 4 · 20% OF EXAMDesign Cost-Optimized Architectures
💰 EC2 Pricing Models · 13
no commitment, flexible, short-term, highest cost, per-second billing, per-hour billing, pricing, On-Demand Capacity Reservation
1 or 3 year, up to 72% discount, Standard RI, Convertible RI, exchange, modify, All Upfront, Partial Upfront
up to 90% discount, interruptible, 2-minute interruption notice, EventBridge, instance metadata, rebalance recommendation, terminate, stop
flexible, hourly commitment, up to 66% discount, Compute Savings Plans, EC2 Instance Savings Plans, Fargate, Lambda, auto-apply
rightsizing, ML recommendations, EC2 optimization, Lambda optimization, cost savings, underutilized, vs Trusted Advisor, 14 days metrics
cost recommendations, idle resources, rightsizing, underutilized, service limits, five categories, Cost Optimization, Performance
budget alerts, cost threshold, SNS notification, usage budget, forecast alert, before overspend, budget actions, pricing
cost analysis, spending visualization, RI recommendations, usage patterns, rightsizing, forecast, hourly granularity, anomaly detection
Cost Anomaly Detection, unusual spending, anomalous spend, ML, cost monitor, root cause, SNS alert, seasonality
Instance Scheduler on AWS, start stop schedule, office hours, weekday only, part-time workload, CloudFormation solution, EC2 RDS schedule, minimal operational overhead
Cost and Usage Report, CUR, line-item billing, most granular, S3 delivery, CSV, Parquet, Athena
cost allocation tags, AWS-generated, user-defined, activate in billing, track cost by tag, cost center
consolidated billing, management account, member accounts, volume discount, shared RI, shared Savings Plans, one bill, free
💾 Storage Cost Optimization · 2
storage classes, cost optimization, lifecycle policy, infrequent access, glacier, Glacier Instant Retrieval, Glacier Deep Archive, One Zone-IA
auto-tiering, unpredictable access, no retrieval fees, access tiers, frequent access, infrequent access, archive instant access, archive access
🌐 Networking Cost Optimization · 2
🗄️ Database Cost Optimization · 2
FRAMEWORK · ALL DOMAINSAWS Well-Architected Framework
🏛️ Six Pillars · 6
IaC, automation, runbooks, CI/CD, monitoring, continuous improvement
least privilege, IAM, encryption, detective controls, data protection, incident response
Multi-AZ, auto-recovery, RTO, RPO, disaster recovery, horizontal scaling, fault isolation
right-sizing, serverless, caching, CDN, global deployment, benchmarking
right-sizing, Reserved Instances, Spot, Savings Plans, eliminate waste, cost allocation tags
sustainability, carbon footprint, environmental impact, 6th pillar, serverless, utilisation, renewable energy, 2021
BONUS · NOT IN EXAMExtra Tools & Open-Source
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