TCP/IP Essentials
Master IPv4 addressing, subnetting and the protocols used in everyday troubleshooting.
Free to start
Create an account to save your progress and take the assessment. Study at your own pace.
Start this courseCreate a free accountAlready enrolled? Sign in
What you'll learn
- Read an IPv4 address, prefix and subnet mask
- Calculate basic network ranges and host capacity
- Explain DHCP, DNS, ICMP, TCP and UDP
- Use a repeatable TCP/IP troubleshooting sequence
Course lessons
4 lessons · 3 hours total · hands-on exercise in every lesson
- 1
IPv4 addresses and masks
Understand the network and host portions of a 32-bit IPv4 address.
40 min
- 2
Subnetting without guesswork
Calculate common subnet sizes and determine whether two hosts are local peers.
55 min
- 3
DHCP, DNS, ICMP, TCP and UDP
Connect the protocols behind address assignment, names, testing and application sessions.
45 min
- 4
A layered TCP/IP workflow
Troubleshoot from local configuration to the application using evidence at every step.
40 min
Final assessment
Check your understanding
Answer five questions drawn from the lessons. A score of 80% or higher passes the assessment and completes the course. You can review feedback and retake it as many times as you need.
Ready to start learning?
Create a free account to save your progress, or sign in and pick up where you left off.