https://wiki.quizz.vn/ 2026-04-15T18:05:14+00:00 https://wiki.quizz.vn/ https://wiki.quizz.vn/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2025-12-28T07:29:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:budgets&rev=1766906989&do=diff AWS Budgets What it is: A service to set budget thresholds and get alerts when spending/usage approaches or exceeds them. What it’s for: * Prevent bill surprises. * Notify teams when costs exceed a set budget. Key ideas: * Budget types can include cost budgets and usage budgets. text/html 2025-12-28T07:30:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:cost-allocation-tags&rev=1766907023&do=diff Cost Allocation Tags What it is: Tags used to categorize and track AWS costs by project/team/environment. What it’s for: * Attribute costs to owners (team A vs team B). * Chargeback/showback and cost accountability. Key ideas: * You tag resources (e.g., Project=Quizz, Env=Prod). text/html 2025-12-28T07:30:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:cost-explorer&rev=1766907006&do=diff Cost Explorer What it is: A tool to visualize, analyze, and break down AWS costs and usage over time. What it’s for: * Find which services/regions/accounts cost the most. * Detect cost spikes and trends. * Plan optimizations. Key ideas: text/html 2025-12-28T07:29:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:free-tier&rev=1766906976&do=diff Free Tier What it is: A set of AWS usage limits that are free for new accounts or always-free services (varies by service). What it’s for: * Learn and try AWS with minimal cost. * Build small demos and test environments. Key ideas: * Limits differ by service and may be time-limited or always-free. text/html 2025-12-28T07:28:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:on-demand&rev=1766906915&do=diff On-Demand What it is: Pay for compute resources by the second/minute/hour with no long-term commitment. What it’s for: * Short-term, spiky, or unpredictable workloads. * Testing, dev environments, temporary projects. Key ideas: * Highest flexibility, usually higher price than commitment models. text/html 2025-12-28T07:27:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:pricing&rev=1766906877&do=diff Pricing Models What it is: The main ways AWS charges for resource usage. What it’s for: * Choose the best cost model for your workload pattern. * Balance flexibility vs discount. Key ideas: * Common models: * On-Demand * Reserved Instances (RI) * Savings Plans * Spot Instances * Free Tier text/html 2025-12-28T07:28:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:reserved-instances&rev=1766906929&do=diff Reserved Instances (RI) What it is: A commitment-based discount model for EC2 (and some other services) for 1 or 3 years. What it’s for: * Save money for steady-state, predictable workloads. Key ideas (exam-friendly): * You commit to a term (1 or 3 years). text/html 2025-12-28T07:29:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:savings-plans&rev=1766906946&do=diff Savings Plans What it is: A discount model based on committing to a consistent spend ($/hour) for 1 or 3 years. What it’s for: * Get discounts with more flexibility than some instance-specific reservations. Key ideas: * You commit to a dollar amount per hour. text/html 2025-12-28T07:29:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:cost:spot&rev=1766906961&do=diff Spot Instances What it is: Spare EC2 capacity offered at a large discount, but AWS can reclaim it at any time. What it’s for: * Fault-tolerant, interruptible workloads (batch processing, CI jobs). * Big cost savings when interruptions are acceptable.