Processes vs Threads

Scheduling algorithms

Memory management (heap, stack, virtual memory, paging)

Deadlocks (detection, prevention, avoidance)

Concurrency primitives (mutex, semaphore, monitors)

File systems

IPC mechanisms

Processes vs Threads

Scheduling algorithms

Memory management (heap, stack, virtual memory, paging)

Deadlocks (detection, prevention, avoidance)

Concurrency primitives (mutex, semaphore, monitors)

File systems

IPC mechanisms

Processes vs Threads

Scheduling algorithms

Memory management (heap, stack, virtual memory, paging)

Deadlocks (detection, prevention, avoidance)

Concurrency primitives (mutex, semaphore, monitors)

File systems

IPC mechanisms

OSI model (all 7 layers)

TCP vs UDP

HTTP/1.1 vs HTTP/2 vs HTTP/3

TLS/SSL handshake

WebSockets

DNS resolution deep dive

CDN internals

OSI model (all 7 layers)

TCP vs UDP

HTTP/1.1 vs HTTP/2 vs HTTP/3

TLS/SSL handshake

WebSockets

DNS resolution deep dive

CDN internals

OSI model (all 7 layers)

TCP vs UDP

HTTP/1.1 vs HTTP/2 vs HTTP/3

TLS/SSL handshake

WebSockets

DNS resolution deep dive

CDN internals

Normalization (1NF-3NF, BCNF)

Transaction isolation levels

B-trees and B+ trees

WAL (Write-Ahead Logging)

MVCC

Normalization (1NF-3NF, BCNF)

Transaction isolation levels

B-trees and B+ trees

WAL (Write-Ahead Logging)

MVCC

Normalization (1NF-3NF, BCNF)

Transaction isolation levels

B-trees and B+ trees

WAL (Write-Ahead Logging)

MVCC

SOLID principles

Creational patterns (Singleton, Factory, Builder)

Structural patterns (Adapter, Decorator, Proxy)

Behavioral patterns (Observer, Strategy, Command)

Composition vs Inheritance

SOLID principles

Creational patterns (Singleton, Factory, Builder)

Structural patterns (Adapter, Decorator, Proxy)

Behavioral patterns (Observer, Strategy, Command)

Composition vs Inheritance

SOLID principles

Creational patterns (Singleton, Factory, Builder)

Structural patterns (Adapter, Decorator, Proxy)

Behavioral patterns (Observer, Strategy, Command)

Composition vs Inheritance