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Showing 20 results for “architecture”. More results are available below.
AWS-CLF · Cloud Concepts
…, risk and cloud financial management. Platform covers architecture, infrastructure and CI/CD. Security covers identity, detection and data protection. Operations covers observability, incid…
AWS-CLF · Billing, Pricing, and Support
…nt. AWS Pricing Calculator produces an estimate for an architecture you have not built yet, so you can compare designs and Regions before spending. AWS Cost Explorer visualises actual histor…
AWS-SAA · Design Secure Architectures
An IAM role is an identity with permissions but no permanent credentials. When you attach a role to an EC2 instance, Lambda function or ECS task, AWS delivers short-lived credentials through…
AWS-SAA · Design Secure Architectures
A security group wraps a network interface and holds only allow rules. Because it is stateful, permitting inbound traffic automatically permits the matching response outbound. A network ACL …
AWS-SAA · Design Secure Architectures
Service control policies in AWS Organizations define the maximum set of actions available inside a member account or organizational unit. Even an account administrator with full IAM rights c…
AWS-SAA · Design Secure Architectures
VPC endpoints let private subnets reach AWS services without an Internet gateway or NAT. Gateway endpoints exist only for S3 and DynamoDB, are free, and work by adding a prefix-list route to…
AWS-SAA · Design Secure Architectures
SSE-S3 lets AWS manage everything with AES-256 and is now the default; you see nothing about keys. SSE-KMS uses a key in AWS KMS, so you get key policies, automatic rotation, and a CloudTrai…
AWS-SAA · Design Secure Architectures
Three services get mixed up constantly. AWS WAF inspects HTTP and HTTPS requests at CloudFront, ALB, API Gateway or AppSync and blocks patterns such as SQL injection, bad bots or traffic fro…
AWS-SAA · Design Secure Architectures
Amazon Cognito user pools provide sign-up, sign-in, MFA and social or SAML federation for the customers of an application, and identity pools swap those tokens for temporary AWS credentials …
AWS-SAA · Design Resilient Architectures
A Region is a geographic area containing multiple Availability Zones. Each AZ is one or more data centers with separate power, cooling and networking, close enough for synchronous replicatio…
AWS-SAA · Design Resilient Architectures
Multi-AZ keeps a synchronous standby copy of the database in another Availability Zone. You cannot query it; its only job is to take over when the primary fails, with the endpoint DNS switch…
AWS-SAA · Design Resilient Architectures
When a web tier writes directly to a processing tier, the slower tier caps the faster one and any outage drops requests. Putting Amazon SQS between them turns the interaction into a durable …
AWS-SAA · Design Resilient Architectures
Backup and restore stores data and templates in another region and rebuilds everything after a disaster, giving the lowest cost and the longest recovery time. Pilot light keeps the essential…
AWS-SAA · Design Resilient Architectures
Route 53 offers several routing policies, but only failover, and the others when combined with health checks, will steer users away from a dead endpoint. A failover record set names a primar…
AWS-SAA · Design Resilient Architectures
Amazon EBS is block storage attached to one instance in one Availability Zone; if the instance moves zones the volume cannot follow without a snapshot. Amazon EFS is a managed NFS file syste…
AWS-SAA · Design High-Performing Architectures
Amazon S3 stores objects, each identified by a key inside a bucket, accessed over HTTP. There is no directory tree; the slashes in keys are just characters that the console renders as folder…
AWS-SAA · Design High-Performing Architectures
Both services use AWS edge locations, but for different reasons. CloudFront is a content delivery network: it stores copies of HTTP responses near users so repeat requests never travel to th…
AWS-SAA · Design High-Performing Architectures
General purpose SSD volumes, gp3 today and gp2 before it, suit boot disks and most databases; gp3 lets you buy IOPS and throughput independently of size. Provisioned IOPS io1 and io2 are for…
AWS-SAA · Design High-Performing Architectures
Most applications read the same rows over and over. Amazon ElastiCache for Redis or Memcached holds those hot items in memory and answers in microseconds, cutting database load dramatically.…
AWS-SAA · Design High-Performing Architectures
Amazon Kinesis Data Streams stores an ordered log of records in shards for up to a year, and any number of consumers can read the same data independently, from the start or in real time. Tha…
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