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dgt_net02 – The Physical Layer

Module Title: dgt_net02 – The Physical Layer

Overview:
The “dgt_net02 – The Physical Layer” module is designed to provide students and professionals with an in-depth understanding of the foundational aspects of networking, focusing on the physical layer as defined by the OSI Open Systems Interconnection model. This module aims to equip participants with both theoretical knowledge and practical skills necessary for designing, implementing, and troubleshooting networks at their most basic level.

module Objectives:
– Understand the Role of the Physical Layer: Learn about its functions within the OSI model and how it interfaces with other layers.
– Explore Key Components and Technologies: Delve into cables, connectors, transceivers, hubs, repeaters, and network topologies that make up physical layer infrastructure.
– Gain Proficiency in Signal Transmission: Study various transmission media copper, fiber optics, wireless and understand the principles of signal encoding and propagation.
– Analyze Network Standards and Protocols: Examine relevant standards such as Ethernet, IEEE 802.3, and emerging technologies impacting physical networks.
– Develop Troubleshooting Skills: Acquire practical techniques for diagnosing and resolving issues at the physical layer.

module Content:
1. Introduction to the Physical Layer:
– Overview of OSI model
– Role and significance in network architecture

  1. Transmission Media:
  2. Copper cables Coaxial, Twisted Pair
  3. Fiber optics

  4. Wireless transmission principles

  5. Network Topologies and Layouts:

  6. Bus, star, ring, mesh, and hybrid topologies

  7. Impact on performance and reliability

  8. Hardware Components:

  9. Cables and connectors RJ45, LC, ST

  10. Devices such as hubs, switches, repeaters, bridges, and routers

  11. Signal Encoding Techniques:

  12. Analog vs. digital signals

  13. Common encoding methods: NRZ, Manchester, AMI

  14. Standards and Protocols:

  15. Detailed study of Ethernet standards IEEE 802.3

  16. Emerging technologies and future trends

  17. Practical Applications and Lab Work:

  18. Hands-on labs to set up different network topologies

  19. Use of network testing tools like cable testers, multimeters, and spectrum analyzers

  20. Troubleshooting Physical Layer Issues:

  21. Common problems and diagnostic techniques
  22. Case studies for real-world problem-solving

Target Audience:
This module is ideal for networking students, IT professionals, system administrators, and anyone involved in network design and maintenance who seeks to deepen their understanding of the physical layer.

module Format:
The module will be delivered through a combination of lectures, interactive discussions, hands-on labs, and case studies. Students will have access to online resources, including recorded sessions and supplementary reading materials.

By completing “dgt_net02 – Physical Layer,” participants will gain comprehensive insights into the critical components that form the backbone of any network infrastructure, enabling them to enhance their careers in networking and telecommunications.
The students can push their exercises to the Academy DevOps & SRE GIT project. For this module, create a folder with your username as its name in the following subfolder: https://github.com/Garanti-Del-Talento/gdt_academy