Network Foundations & Physical Layer

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Network Foundations & Physical Layer

This course is part of CompTIA Network+ Specialization

Instructors: Mike Meyers

Included with

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6 modules

Gain insight into a topic and learn the fundamentals.

Beginner level

Recommended experience

6 hours to complete

Flexible schedule

Learn at your own pace

6 modules

Gain insight into a topic and learn the fundamentals.

Beginner level

Recommended experience

6 hours to complete

Flexible schedule

Learn at your own pace

What you'll learn

How to explain the OSI and TCP/IP models and describe how data is encapsulated and transmitted across network layers
How to identify and install network cabling including copper and fiber standards, connectors, and structured cabling components
How to troubleshoot physical layer cabling problems using cable testers, visual inspection, and systematic diagnostic methods

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Build your subject-matter expertise

This course is part of the CompTIA Network+ Specialization

When you enroll in this course, you'll also be enrolled in this Specialization.

Learn new concepts from industry experts
Gain a foundational understanding of a subject or tool
Develop job-relevant skills with hands-on projects
Earn a shareable career certificate

There are 6 modules in this course

This course launches with the foundational networking concepts and physical layer technologies that underpin all network communications. Covering approximately 4 hours of expert instruction across networking fundamentals, the OSI and TCP/IP models, cabling standards, Ethernet, and structured cabling, learners build the conceptual and physical foundation for all subsequent networking studies.

Learners benefit by understanding how data flows through networks, how physical media and connectors are selected and installed, and how to troubleshoot cabling problems. online labs reinforce physical installation and cable identification tasks. By the end of this course, learners will be able to describe network models, identify and install network media, and apply structured cabling standards to real-world installations.

This chapter is a clear overview of core networking models and data flow, introducing frames, MAC addressing, ports, and essential TCP/IP protocols to build a strong foundation for understanding how networks communicate.

What's included

9 videos1 reading1 assignment

9 videosTotal 55 minutes

Network Models & the OSI Framework Introduction1 minute
Introduction to CompTIA Network+ (N10-009) Exam Training2 minutes
What's on the CompTIA Network+ (N10-009) Exam?3 minutes
What Can You Do with a Network+ Certification?4 minutes
The OSI Model13 minutes
Meet the Frame6 minutes
The MAC Address7 minutes
Understanding Ports and Services7 minutes
Internet Protocol (IP) Types12 minutes

1 readingTotal 2 minutes

Network Models & the OSI Framework Slide Handout2 minutes

1 assignmentTotal 15 minutes

Network Models & the OSI Framework Assessment15 minutes

This chapter is an introduction to essential network layouts and cabling, covering topologies, coax, twisted pair standards, fiber types, and cable fire ratings to build a solid understanding of modern network infrastructure.

What's included

5 videos1 reading1 assignment

This chapter is a practical look at core Ethernet technologies, frames, cabling, topologies, and switch behavior, showing how networks are built, connected, and expanded in real-world environments.

What's included

6 videos1 reading1 assignment

This chapter is a conscice look at Ethernet standards, transceivers, and common cabling or switch issues, building the skills needed to understand speeds, media options, and real‑world troubleshooting.

What's included

4 videos1 reading1 assignment

This chapter is a hands on guide to structured cabling, exploring its components, tools, testing methods, and troubleshooting techniques to ensure reliable, well‑built network installations.

What's included

9 videos1 reading1 assignment1 plugin

9 videosTotal 51 minutes

Introduction to Structured Cabling4 minutes
Terminating Structured Cabling8 minutes
Equipment Room7 minutes
Alternative Distribution Panels4 minutes
Using a Toner and Probe3 minutes
Testing Cable9 minutes
Troubleshooting Cabling, Part 14 minutes
Troubleshooting Cabling, Part 24 minutes
Troubleshooting Cabling, Part 310 minutes

1 readingTotal 2 minutes

Installing a Physical Network Slide Handout2 minutes

1 assignmentTotal 15 minutes

Installing a Physical Network Assessment15 minutes

1 pluginTotal 3 minutes

Physical Installation Components (Challenge)3 minutes

Final graded assessment

What's included

1 assignment

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Instructors

Mike Meyers

Total Seminars

29 Courses517 learners

Lyndon Williams

Total Seminars

13 Courses307 learners

Offered by

Total Seminars

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Frequently asked questions

To access the course materials, assignments and to earn a Certificate, you will need to purchase the Certificate experience when you enroll in a course. You can try a Free Trial instead, or apply for Financial Aid. The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.

When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.

Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.