Unlock the power of load balancers—an essential topic for system design interviews and scalable backend architectures! This video is specially created for learners and interview aspirants, providing a comprehensive understanding of load balancers, their advantages, algorithms, and real-world applications.
Elevate your tech career with [Scaler](https://www.scaler.com/?unlock_code=M...! Join a community dedicated to transforming careers in technology. With over 15,000 successful career transitions and partnerships with 900+ placement partners, [Scaler](https://www.scaler.com/?unlock_code=M... tailored learning experiences that can help you become part of the top 1% in the tech industry.
Explore a variety of programs, participate in live classes, and gain access to valuable resources designed to enhance your skills. Whether you're looking to advance in your current role or pivot to a new career, [Scaler](https://www.scaler.com/?unlock_code=M... the support and guidance you need to succeed. Don't miss out—book your free live class today!
https://programmercave.com/
What You’ll Learn:
What is a Load Balancer?
Discover why load balancers are the backbone of modern web applications. Learn how they distribute network traffic, prevent bottlenecks, and ensure optimal performance.
The Four Pillars of Load Balancing:
Scalability: Seamlessly handle increased traffic by adding servers.
Availability & Reliability: Keep your app online—automatic failover and intelligent health checks reroute traffic if servers go down.
Performance: Reduce latency and maximize responsiveness by allocating requests to the best servers.
Security: Hide backend server details and add a security layer against external threats.
How Load Balancers Work:
Step-by-step flow: From DNS resolving your website, to the load balancer distributing requests, to servers processing data.
Transparent experience: Users never notice your system’s complexity.
Health Checks:
How automated checks keep only healthy servers in the traffic pool.
Ensuring high availability and reducing the risk of failed responses.
Load Balancing Algorithms (Key Interview Topic!):
Static Algorithms: Round Robin, Weighted Round Robin, IP Hash—simple but smart ways to spread the load.
Dynamic Algorithms: Least Connections, Weighted Least Connection, Weighted Response Time, Resource-Based—optimize real-time traffic allocation.
Pros and cons of different strategies explained with examples.
Types of Load Balancers:
Layer 4 (Network Load Balancer): Super-fast, routes traffic by IP and port, no content inspection.
Layer 7 (Application Load Balancer): Inspects HTTP/HTTPS content, enables routing by URL, headers, cookies for smart web-scale solutions.
Advanced Concepts:
Session Stickiness / Persistence: Why keeping user sessions on a single server sometimes matters, how cookies and IP Hash enable this, and the trade-offs involved.
Centralized Session Stores: Redis and distributed caching for fully scalable session management.
Real-World Applications:
Scaling e-commerce, large web apps, video streaming platforms, and APIs.
Industry examples, best practices, and ready-to-use interview talking points!
Keywords for Better Ranking:
load balancer explained, system design interview, backend engineering, load balancing algorithms, round robin, least connections, layer 4 vs layer 7, network load balancer, application load balancer, health checks, system scalability, high availability architecture, session stickiness, interview questions, scalable web apps, performance optimization, distributed systems, reverse proxy, backend security, modern web apps
Timestamps:
0:00 – Introduction to Load Balancers
1:15 – Why Use a Load Balancer?
3:30 – How Load Balancers Work
5:00 – Health Checks and High Availability
7:00 – Static Load Balancing Algorithms
10:00 – Dynamic Load Balancing Algorithms
13:00 – Layer 4 vs Layer 7 Load Balancers
16:00 – Session Stickiness and Solutions
18:30 – Real-World Use Cases and Interview Tips
If you’re preparing for system design interviews (FAANG, startups, or MNCs), or just want to build better, more reliable systems, this video has you covered!
Don’t forget to LIKE, SUBSCRIBE, and SHARE for more high-value tutorials on system design, backend principles, and interview preparation!
Effective Hashtags:
#LoadBalancer #SystemDesign #InterviewPrep #BackendEngineering #LoadBalancingAlgorithms #ScalableSystems #HighAvailability #Layer4 #Layer7 #PerformanceOptimization #DistributedSystems #SessionStickiness #HealthChecks #TechInterview #WebArchitecture #BackendDevelopment #SystemReliability
Информация по комментариям в разработке