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--- start [2025/12/28 09:12] – [Copyright] phong2018
+++ start [2026/06/18 00:21] (current) – [OSI Model] phong2018
@@ Line 1: / Line 1: @@
-====== Quizz.vn ======
+====== Engineering Knowledge Tree ======
-Quizz.vn is Vietnam’s leading online platform for creating and sharing quizzes. With a user-friendly interface and a wide range of features, Quizz.vn enables teachers, businesses, and individual users to easily create tests, surveys, and interactive quizzes. The system supports multiple question types, automatic grading, detailed analytics, and instant result sharing.
-Quizz.vn is available at https://quizz.vn
+This is a structured engineering knowledge map with readable links.
-===== Copyright =====
+-----
- (c) Quizz.vn Team contact.quizz.vn@gmail.com
-Quizz.vn is developed and operated by a Vietnam-based development team. All rights reserved.
+===== 1. Computer Science Fundamentals =====
+==== Data Structures ====
+  * [[data_structures:array|Array]]
+  * [[data_structures:linked_list|Linked List]]
+  * [[data_structures:stack|Stack]]
+  * [[data_structures:queue|Queue]]
+  * [[data_structures:hash_map|Hash Map / Hash Set]]
+  * [[data_structures:tree|Tree]]
+  * [[data_structures:graph|Graph]]
+==== Algorithms ====
+  * [[algorithms:sorting|Sorting Algorithms]]
+  * [[algorithms:searching|Searching Algorithms]]
+  * [[algorithms:recursion|Recursion]]
+  * [[algorithms:dynamic_programming|Dynamic Programming]]
+  * [[algorithms:graph_algorithms|Graph Algorithms (BFS, DFS, Dijkstra)]]
+==== Complexity ====
+  * [[complexity:big_o_notation|Big-O Notation]]
+  * [[complexity:time_vs_space|Time vs Space Tradeoff]]
+-----
+===== 2. Networking & Protocols =====
+==== OSI Model ====
+  * [[networking:osi_model|OSI Model (7 Layers)]]
+==== Core Protocols ====
+  * [[networking:tcp_vs_udp|TCP vs UDP]]
+  * [[networking:http_https|HTTP / HTTPS]]
+  * [[networking:websocket|WebSocket]]
+  * [[networking:dns|DNS]]
+  * [[networking:tls_ssl|TLS / SSL]]
+  * [[networking:rest_vs_grpc|REST vs gRPC]]
+==== HTTP Versions ====
+  * [[networking:http_1_1|HTTP/1.1]]
+  * [[networking:http_2|HTTP/2]]
+  * [[networking:http_3_quic|HTTP/3 (QUIC)]]
+==== Concepts ====
+  * [[networking:keep_alive|Keep-alive Connection]]
+  * [[networking:handshake|Handshake]]
+  * [[networking:latency_vs_throughput|Latency vs Throughput]]
+-----
+===== 3. Backend Engineering =====
+==== API Design ====
+  * [[backend:rest_api|REST API]]
+  * [[backend:graphql|GraphQL]]
+==== Authentication ====
+  * [[auth:session_based|Session-based Authentication]]
+  * [[auth:jwt|JWT (JSON Web Token)]]
+  * [[auth:oauth2|OAuth2]]
+  * [[auth:sso|SSO (Single Sign-On)]]
+==== Architecture Styles ====
+  * [[architecture:monolith|Monolith Architecture]]
+  * [[architecture:microservices|Microservices Architecture]]
+  * [[architecture:event_driven|Event-driven Architecture]]
+==== Backend Patterns ====
+  * [[patterns:mvc|MVC Pattern]]
+  * [[patterns:cqrs|CQRS Pattern]]
+  * [[patterns:saga|Saga Pattern]]
+-----
+===== 4. Distributed Systems =====
+==== Core Principles ====
+  * [[distributed_systems:cap_theorem|CAP Theorem]]
+==== Communication ====
+  * [[distributed_systems:synchronous_vs_asynchronous|Sync vs Async Communication]]
+==== Messaging Systems ====
+  * [[messaging:kafka|Kafka]]
+  * [[messaging:rabbitmq|RabbitMQ]]
+  * [[messaging:redis_streams|Redis Streams]]
+==== Kafka Concepts ====
+  * [[kafka:topic|Topic]]
+  * [[kafka:partition|Partition]]
+  * [[kafka:offset|Offset]]
+  * [[kafka:consumer_group|Consumer Group]]
+==== System Concepts ====
+  * [[distributed_systems:backpressure|Backpressure]]
+  * [[distributed_systems:replication|Replication]]
+  * [[distributed_systems:leader_election|Leader Election]]
+-----
+===== 5. Databases =====
+==== SQL ====
+  * [[database:sql_indexing|SQL Indexing]]
+  * [[database:transactions_acid|ACID Transactions]]
+  * [[database:query_optimization|Query Optimization]]
+==== NoSQL ====
+  * [[database:mongodb|MongoDB]]
+  * [[database:redis|Redis]]
+  * [[database:cassandra|Cassandra]]
+  * [[database:graph_db|Graph Database]]
+==== Scaling ====
+  * [[database:replication|Replication]]
+  * [[database:sharding|Sharding]]
+  * [[database:read_replicas|Read Replicas]]
+==== Caching ====
+  * [[cache:cache_invalidation|Cache Invalidation]]
+  * [[cache:ttl|TTL (Time To Live)]]
+  * [[cache:cache_aside|Cache Aside Pattern]]
+-----
+===== 6. DevOps & Infrastructure =====
+  * [[devops:linux_basics|Linux Basics]]
+  * [[devops:docker|Docker]]
+  * [[devops:kubernetes|Kubernetes]]
+  * [[devops:ci_cd|CI/CD Pipeline]]
+  * [[devops:terraform|Terraform]]
+  * [[devops:cloudformation|CloudFormation]]
+  * [[devops:observability|Observability]]
+-----
+===== 7. Cloud Platforms =====
+  * [[cloud:ec2|EC2 (Virtual Machines)]]
+  * [[cloud:lambda|AWS Lambda]]
+  * [[cloud:s3|S3 Storage]]
+  * [[cloud:vpc|VPC (Virtual Private Cloud)]]
+  * [[cloud:load_balancer|Load Balancer]]
+  * [[cloud:sqs|SQS Queue]]
+  * [[cloud:sns|SNS Notifications]]
+  * [[cloud:iam|IAM (Identity Access Management)]]
+-----
+===== 8. Software Architecture =====
+  * [[architecture:solid_principles|SOLID Principles]]
+==== Design Patterns ====
+  * [[design_patterns:factory|Factory Pattern]]
+  * [[design_patterns:singleton|Singleton Pattern]]
+  * [[design_patterns:strategy|Strategy Pattern]]
+  * [[design_patterns:observer|Observer Pattern]]
+==== System Design ====
+  * [[system_design:url_shortener|URL Shortener System]]
+  * [[system_design:chat_system|Chat System]]
+  * [[system_design:payment_system|Payment System]]
+  * [[system_design:notification_system|Notification System]]
+-----
+===== 9. Performance Engineering =====
+  * [[performance:caching|Caching Strategies]]
+  * [[performance:database_optimization|Database Optimization]]
+  * [[performance:memory_management|Memory Management]]
+  * [[performance:cpu_io_bottlenecks|CPU vs I/O Bottlenecks]]
+  * [[performance:load_testing|Load Testing]]
+  * [[performance:profiling|Profiling & Tuning]]
+-----
+===== 10. Security =====
+  * [[security:encryption|Encryption]]
+  * [[security:hashing|Hashing]]
+  * [[security:authentication_authorization|Authentication & Authorization]]
+  * [[security:owasp_top_10|OWASP Top 10]]
+  * [[security:api_security|API Security]]
+  * [[security:xss_csrf_sql_injection|XSS / CSRF / SQL Injection]]
+-----
+===== 11. Frontend Engineering =====
+  * [[frontend:html_css_js|HTML / CSS / JavaScript]]
+  * [[frontend:typescript|TypeScript]]
+  * [[frontend:react_vue|React / Vue]]
+  * [[frontend:state_management|State Management]]
+  * [[frontend:browser_rendering|Browser Rendering]]
+  * [[frontend:performance_lcp_fcp|Frontend Performance (LCP / FCP)]]
+-----
+===== 12. Messaging & Event Systems =====
+  * [[event_systems:kafka_deep_dive|Kafka Deep Dive]]
+  * [[event_systems:rabbitmq|RabbitMQ]]
+  * [[event_systems:redis_pubsub|Redis Pub/Sub]]
+  * [[event_systems:event_sourcing|Event Sourcing]]
+  * [[event_systems:eventual_consistency|Eventual Consistency]]
+-----
+===== 13. Real-world System Design =====
+  * [[system_design:ecommerce|E-commerce System]]
+  * [[system_design:chat_app|Chat Application]]
+  * [[system_design:payment_gateway|Payment Gateway]]
+  * [[system_design:notification_system|Notification System]]
+  * [[system_design:logging_pipeline|Logging Pipeline]]
+-----
+===== 14. Engineering Mindset =====
+  * [[mindset:debugging|Debugging Skills]]
+  * [[mindset:system_thinking|System Thinking]]
+  * [[mindset:trade_off_analysis|Trade-off Analysis]]
+  * [[mindset:code_reading|Code Reading]]
+  * [[mindset:refactoring|Refactoring]]