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481What CAP Theorem States
482Why Partitions Are Inevitable
483The CAP Tradeoff During Partitions
484Consistency in CAP Context
485Availability in CAP Context
486Partition Tolerance Explained
487Why You Cannot Have All Three
488CAP as a Spectrum, Not Binary
489CAP During Normal Operation
490Common Misconceptions About CAP
491CAP Theorem's Original Paper
492Limitations of CAP as a Framework
493CP Systems: Prioritizing Consistency
494AP Systems: Prioritizing Availability
495Consistency vs Availability in Practice
496Banking and Financial Systems (CP)
497Social Media and Content Feeds (AP)
498Shopping Cart Systems (AP)
499Inventory Management (CP)
500DNS Systems (AP)
501Distributed Locking Services (CP)
502Mixed Strategies: Hybrid Systems
503Choosing Between CP and AP
504Why 'Choose Two' is Oversimplified
505The Partition Question: When, Not If
506CAP in Normal Operation vs Partition
507Consistency is a Spectrum in Practice
508Availability is Also a Spectrum
509Latency: The Hidden Cost of CAP
510Real Systems: Multi-Region Trade-offs
511Banking Systems: Consistency Over Availability
512Social Media: Availability Over Consistency
513Hybrid Approaches: Different Guarantees Per Operation
514Beyond CAP: The Need for PACELC
515PACELC Framework Explained
516The 'Else' Clause: Normal Operation Tradeoffs
517PA/EL Systems: Availability and Latency First
518PC/EC Systems: Consistency Always
519PA/EC Systems: Mixed Strategies
520Practical PACELC Analysis for Design Decisions
521PACELC Tradeoffs in Real Systems

481What CAP Theorem States
482Why Partitions Are Inevitable
483The CAP Tradeoff During Partitions
484Consistency in CAP Context
485Availability in CAP Context
486Partition Tolerance Explained
487Why You Cannot Have All Three
488CAP as a Spectrum, Not Binary
489CAP During Normal Operation
490Common Misconceptions About CAP
491CAP Theorem's Original Paper
492Limitations of CAP as a Framework
493CP Systems: Prioritizing Consistency
494AP Systems: Prioritizing Availability
495Consistency vs Availability in Practice
496Banking and Financial Systems (CP)
497Social Media and Content Feeds (AP)
498Shopping Cart Systems (AP)
499Inventory Management (CP)
500DNS Systems (AP)
501Distributed Locking Services (CP)
502Mixed Strategies: Hybrid Systems
503Choosing Between CP and AP
504Why 'Choose Two' is Oversimplified
505The Partition Question: When, Not If
506CAP in Normal Operation vs Partition
507Consistency is a Spectrum in Practice
508Availability is Also a Spectrum
509Latency: The Hidden Cost of CAP
510Real Systems: Multi-Region Trade-offs
511Banking Systems: Consistency Over Availability
512Social Media: Availability Over Consistency
513Hybrid Approaches: Different Guarantees Per Operation
514Beyond CAP: The Need for PACELC
515PACELC Framework Explained
516The 'Else' Clause: Normal Operation Tradeoffs
517PA/EL Systems: Availability and Latency First
518PC/EC Systems: Consistency Always
519PA/EC Systems: Mixed Strategies
520Practical PACELC Analysis for Design Decisions
521PACELC Tradeoffs in Real Systems

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Lesson 511 of 1,919·14. CAP TheoremPro lesson

Banking Systems: Consistency Over Availability

Financial transactions typically choose consistency (CP), blocking writes during partitions to prevent data anomalies and double-spends.

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