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AWS-DVA · Delivery pipelines
…ce and test results, and promote the intended version through environments. Protect deployment credentials and define a recovery path. A green build only proves the configured checks passed;…
AWS-MLA · AWS AI and machine learning
…mple A team wants managed access to foundation models through AWS APIs. Which service is relevant? Amazon Bedrock Bedrock provides foundation-model capabilities; network and infrastructure s…
AWS-MLA · Machine-learning engineering
…. What alternative better tests future performance? A chronological split respecting prediction time Temporal validation reduces leakage from future observations and better matches deploymen…
AWS-MLS · AWS AI and machine learning
…mple A team wants managed access to foundation models through AWS APIs. Which service is relevant? Amazon Bedrock Bedrock provides foundation-model capabilities; network and infrastructure s…
AWS-MLS · Machine-learning engineering
…. What alternative better tests future performance? A chronological split respecting prediction time Temporal validation reduces leakage from future observations and better matches deploymen…
AWS-SAA · Design Secure Architectures
…ion or ECS task, AWS delivers 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-liv…
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 Resilient Architectures
…te power, cooling and networking, close enough for synchronous replication yet isolated enough that a flood or power failure should not take out two at once. Most resilience on the exam come…
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
… guarantee order and exactly-once processing at lower throughput. A dead-letter queue catches messages that fail repeatedly. SNS is the fan-out sibling: one publish, many subscribers, includ…
AWS-SAA · Design Resilient Architectures
…rs and Lambda functions at the same time, growing and shrinking automatically. Amazon FSx fills the gaps for Windows SMB shares and high-performance Lustre. When a scenario needs a shared ho…
AWS-SAA · Design High-Performing Architectures
…t disks and most databases; gp3 lets you buy IOPS and throughput independently of size. Provisioned IOPS io1 and io2 are for databases that need guaranteed, consistent IOPS, with io2 Block E…
AWS-SAA · Design High-Performing Architectures
… it the default choice; Memcached is simpler and multithreaded. DynamoDB has its own purpose-built cache called DAX that requires no application logic beyond a client change. When an exam sc…
AWS-SAA · Design Cost-Optimized Architectures
… Savings Plans and Reserved Instances trade a one- or three-year commitment for large discounts on steady baseline usage, and Compute Savings Plans stay flexible across instance family, regi…
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-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…
AWS-SOA · AWS workload operations
… operator needs an alert when an EC2 metric exceeds a threshold. Which service capability fits? A CloudWatch alarm CloudWatch alarms evaluate metrics and invoke configured notification or ac…
AZ-104 · Manage Azure identities and governance
…the tenant; guest users are external accounts invited through B2B collaboration with limited default permissions. Security groups grant access and can be assigned or dynamic, where membershi…
AZ-104 · Manage Azure identities and governance
…or annual amount at a chosen scope and send alerts at thresholds such as 80 and 100 percent; they notify action groups but do not shut resources down unless you wire an automation runbook to…
AZ-104 · Implement and manage storage
Locally redundant storage keeps three synchronous copies in one data centre, the cheapest option. Zone-redundant storage spreads three copies across availability zones in the region, survivi…
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