Topic
Ot
Learn Ot as a connected topic across chapters, concepts, simulations, and interview reasoning.
10 Concepts118 Articles39h 1m
Overview
Learn Ot as a connected topic across chapters, concepts, simulations, and interview reasoning.
How this topic helps
System Design
Distributed Systems
Architecture
Llm
Learning Path in this Topic
Series that contain articles from Ot. Select a path to filter the article list.
Articles
118 matched articles
Article 1System Design HLD Example: Collaborative Document Editing (Google Docs)TLDR: Real-time collaborative editing relies on Operational Transformation (OT) or CRDTs to resolve concurrent edits without data loss. The core trade-off is Latency vs. Consistency: we use optimistic14 minArticle 2Dot Product in Machine Learning: The Engine Behind Similarity, Attention, and Neural NetworksTLDR: The dot product multiplies corresponding elements of two vectors and sums the results. In machine learning it does three critical jobs: it scores semantic similarity between embeddings, computes22 min
Article 3Split Brain Explained: When Two Nodes Both Think They Are LeaderTLDR: Split brain happens when a network partition causes two nodes to simultaneously believe they are the leader — each accepting writes the other never sees. Prevent it with quorum consensus (at lea22 min
Article 4Managed API LLMs vs Self-Hosted Models: When to Switch and When Not ToTLDR: Most teams should start with managed LLM APIs because they buy speed, reliability, model quality, and low operational burden. Move to self-hosted or open-weight models only when you have stable 17 min
Article 5Read Skew Explained: Inconsistent Snapshots Across Multiple ObjectsTLDR: Read skew occurs when a transaction reads two logically related objects at different points in time — one before and one after a concurrent transaction commits — producing a view that never exis34 min
Article 6Isolation Levels in Databases: Read Committed, Repeatable Read, Snapshot, and Serializable ExplainedTLDR: Isolation levels control which concurrency anomalies a transaction can see. Read Committed (PostgreSQL and Oracle's default) prevents dirty reads but still silently allows non-repeatable reads, 28 minPage 1 of 20