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Showing 20 results · Page 5 for “AWS”. More results are available below.
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…
AWS-SAA · Design High-Performing Architectures
Amazon Athena is serverless: point it at data in S3, define a table in the Glue Data Catalog, and run standard SQL, paying per terabyte scanned. It shines for ad hoc analysis of logs and dat…
AWS-SAA · Design Cost-Optimized Architectures
EC2 pricing has four flavors. On-Demand costs the most per hour but commits you to nothing, ideal for new or spiky workloads. Spot Instances use spare capacity at discounts up to 90 percent …
AWS-SAA · Design Cost-Optimized Architectures
S3 Standard is for frequently accessed data. Standard-IA and One Zone-IA cost less per gigabyte but charge for each retrieval and require a 30-day minimum, with One Zone dropping the multi-A…
AWS-SAA · Design Cost-Optimized Architectures
AWS does not charge for data entering a region, and traffic between resources in the same Availability Zone using private IPs is free. Crossing Availability Zones costs a small amount per gi…
AWS-SAA · Design Cost-Optimized Architectures
AWS Budgets lets you set thresholds on cost, usage, reservation coverage or Savings Plan utilization and sends alerts when actual or forecasted values cross them; it can even trigger actions…
AWS-SAA · Design Cost-Optimized Architectures
An EC2 instance or an RDS instance costs money every hour it exists, whether or not anyone is using it. Lambda, API Gateway, DynamoDB on-demand, S3, SQS and Fargate charge per request, per g…
AWS-SAP · AWS architecture tradeoffs
A suitable AWS architecture balances reliability, security, performance, cost and operational effort against the workload's requirements. Define acceptable downtime, data loss and traffic pa…
AWS-SAP · Cloud governance and cost
Cloud governance connects resource decisions to business ownership, access rules and spending controls. Consistent tags and accounts help identify who should respond to a cost increase or un…
AWS-SAP · Resilient architecture
High availability keeps a service running through expected component failures; disaster recovery restores it after a larger disruption. Define the failure you need to withstand before adding…
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