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⚡ One HLD concept. 60 seconds. Interview ready
Understanding HTTP Methods and Status Codes
HTTP methods tell the server what to do, and status codes tell us the result.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding TCP 3-Way Handshake: SYN, SYN-ACK, ACK
The TCP 3-way handshake ensures reliable connection establishment between a client and server.
⚡ One HLD concept. 60 seconds. Interview ready
HLD: 5 Microservices Communication Patterns Explained
Microservices can communicate using five key patterns based on their needs.
⚡ One HLD concept. 60 seconds. Interview ready
HTTP vs HTTPS: Understanding the Key Differences
HTTPS is a secure version of HTTP that encrypts data for safety.
⚡ One HLD concept. 60 seconds. Interview ready
Understanding Unary vs Streaming RPC in gRPC
gRPC supports four communication patterns: Unary, Server Streaming, Client Streaming, and Bidirectional Streaming.
⚡ One HLD concept. 60 seconds. Interview ready
Message Delivery Semantics: At-Most-Once vs At-Least-Once vs Exactly-Once
Message delivery semantics define how messages are sent in distributed systems and handle failures.
⚡ One HLD concept. 60 seconds. Interview ready
HLD: Understanding REST, RPC, and gRPC Differences
REST, RPC, and gRPC are different methods for communication in software systems.
⚡ One HLD concept. 60 seconds. Interview ready
Sync vs Async Replication: Choosing the Right Approach
Synchronous replication waits for confirmation from replicas, while asynchronous allows faster writes without waiting.
⚡ One HLD concept. 60 seconds. Interview ready
Protobuf and Schema Evolution: Avoid Breaking Changes
Protobuf schema evolution requires careful changes to avoid breaking existing clients.