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Showing 20 results · Page 10 for “data”. More results are available below.
AWS-MLA · Machine-learning engineering
Data leakage occurs when training or model selection uses information that would not be available at prediction time. Split data in a way that respects time and related entities, and fit lea…
AWS-MLA · Statistics and measurement
A statistic summarizes observed data, while inference uses a sample to reason about a wider population. The sampling process matters as much as sample size: a large biased sample can remain …
AWS-MLS · AWS AI and machine learning
…in a task-specific model. These choices have different data, evaluation and operational needs. Match the approach to the problem and available evidence. Regardless of the hosting service, as…
AWS-MLS · Machine-learning engineering
Data leakage occurs when training or model selection uses information that would not be available at prediction time. Split data in a way that respects time and related entities, and fit lea…
AWS-MLS · Statistics and measurement
A statistic summarizes observed data, while inference uses a sample to reason about a wider population. The sampling process matters as much as sample size: a large biased sample can remain …
AWS-SAA · Design Secure Architectures
…ivers short-lived credentials through the instance metadata service and rotates them automatically. Nothing sits on disk to leak into a repository or an AMI. Long-lived access keys belong on…
AWS-SAA · Design Resilient Architectures
…ng multiple Availability Zones. Each AZ is one or more data centers with separate power, cooling and networking, close enough for synchronous replication yet isolated enough that a flood or …
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
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 High-Performing Architectures
…. Use it for backups, media, logs, static websites and data lakes. When a workload needs POSIX semantics such as locks or partial writes, it needs EFS or EBS instead.
AWS-SAA · Design High-Performing Architectures
… 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 databases that need guarant…
AWS-SAA · Design High-Performing Architectures
…t items in memory and answers in microseconds, cutting database load dramatically. Redis adds persistence, replication, sorted sets and pub-sub, which makes it the default choice; Memcached …
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
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
…urora Serverless v2 brings the same idea to relational databases by scaling capacity units up and down automatically. For steady heavy load, provisioned resources with Savings Plans can be c…
AWS-SAP · AWS architecture tradeoffs
…e workload's requirements. Define acceptable downtime, data loss and traffic patterns before selecting components. Managed services can reduce operations work but still require correct confi…
AWS-SAP · Cloud governance and cost
…stent ownership tags and cost allocation Ownership metadata and allocation connect consumption to responsible teams. Reports become actionable when costs have owners.
AWS-SAP · Resilient architecture
…ndependent placement with tested recovery and explicit data-loss and downtime objectives. Worked example A payment client times out and retries, sometimes charging twice. Which design preven…
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