OK
STEM
K–12 Courses
College CS
About
Donate
OKSTEM College · AS Computer Science
CS 241: Computer Networks
From bits on a wire to HTTP and TLS — how the Internet actually works.
Start Course →
10 Lessons
01
Network Models: OSI & TCP/IP
02
Physical Layer & Data Encoding
03
Data Link Layer & Ethernet
04
IP Addressing & Subnetting
05
Routing Algorithms
06
TCP: Reliable Transport
07
UDP & Application Layer Protocols
08
DNS & HTTP
09
Network Security: TLS & Firewalls
10
Wireless Networks & Modern Protocols
Learning Outcomes
Explain the OSI and TCP/IP models
Understand IP addressing, subnetting, and routing
Describe TCP reliability and application protocols
Explain TLS, DNS, HTTP, and wireless networking