Essentials of Physical Network Connectivity

Name: Essentials of Physical Network Connectivity
Rating: 4.8 (24 reviews)

Everything about wired and wireless connectivity in computer networking

Created byDhananjay Naldurgkar | Cybersecurity Expert

Last updated 4/2024

English

English [Auto],

What you'll learn

Gain proficiency in the installation, termination, and testing of Ethernet and fiber optic cabling.
Understanding cabling standards & crimping methods
Understanding purpose of various network devices like Repeaters, switches, & routers
Exposure to various types of network architectures & Technologies

Course content

3 sections • 22 lectures • 3h 35m total length

Introduction to Physical Network Connectivity5:20
Explore the fundamentals of physical networking through hands-on, practical sessions that cover network topologies, devices, cabling, connectors, standards, tools, and troubleshooting essential for robust connectivity.
Shielded & Unshielded Twisted Pair Cables16:20
Compare shielded and unshielded twisted pair cables, noting shielding, grounding, EMI protection, and cost. Explain cat 5 through cat 6 speeds and typical uses in home and office networks.
Understanding Fibre Optic Cable8:01
Explore fiber optic cable fundamentals, comparing single mode and multimode fiber, core sizes, applications in long distance telecom vs data centers, and fiber connectors such as LC, SC, and ST.
Tools for Crimping5:08
Master crimping ethernet cables using RJ45/RJ11 connectors, crimping dies, and cable strippers; verify connections with a cable tester and LED sequence across shielded and unshielded variants.
Practical Session: Crimping LAN Cable18:44
Learn to crimp a cat6 utp lan cable with rj45 jacks and boot plugs, using a crimping tool and 568A sequence to create a straight-through cable.
Practical Session: Cable Testing Using Cable Tester2:36
Practice cable testing with a LAN tester to verify RJ-11 and RJ-45 cables are correctly crimped, using LED sequences to troubleshoot connectivity issues.
Practical Session: Throughput From Wired & Wireless Connectivity5:58
Crimp a LAN cable to compare wired and wireless throughput, showing higher wired speeds and notes on packet loss during wireless testing with speedtest results.
Crimping Methods: Standard 568A and 568B8:35
Learn how to crimp twisted pair cables using 568A and 568B standards, build straight-through cables for unlike devices, create crossover cables for similar devices, and understand rollover cable basics.
Understanding RX and TX Cables2:55
Understand tx and rx cables in a straight-through patch cable, using four wires: white-green, green-white, white-orange, orange-white; blue and brown pairs unused for 100 base dt.

Broadband Router Frequencies 2.4GHz and 5GHz Explained5:54
Explore how home routers use 2.4 GHz and 5 GHz bands, their range, penetration, and how dual-band setups optimize coverage and data rates for different devices.
Router Configuration Settings Explained11:26
Explore router configuration settings, including LAN and WAN interfaces, public IP, DNS, device connectivity with MAC addresses, 2.4 ghz and 5 ghz bands, and VPN options like ds-lite and L2TPv3.
Port Forwarding: Hosting Web Service in LAB using Public IP8:47
Learn how to host a web service on a CentOS VM with apache httpd, configure firewall ports and broadband router port forwarding to expose the site via a public IP.
Port Forwarding: SSH to LAB VM from Internet Using Public IP8:07
Configure port forwarding to ssh into a lab vm from the internet using a public ip, mapping wan port 22 to the lan ip 192.168.1.152 and testing with Putty.

PING Command Part18:50
Explore the ping command through a four device lab to verify connectivity to the router and devices using IP addresses like 192.168.1.1 and 192.168.1.100, and examine TTL and replies.
PING Command Part217:22
Use the ping command to test reachability and measure round-trip time with ICMP echo requests and replies. Analyze packet loss, default 32-byte packets, and TTL values to infer remote OS.
PING Command Part312:01
Explore TTL values across Windows and Linux and layer-3 devices, and how the ping command doubles as a diagnostic tool and a vector for DDoS and reconnaissance.
Managing IP Settings using IPConfig17:22
Learn to view and manage Windows network configuration with ipconfig, displaying IP addresses, subnet masks, default gateways, DHCP details, and DNS servers, plus renewing, releasing, and flushing DNS caches.
Capturing Physical Address using GETMAC Command7:00
Use the getmac command to retrieve the MAC addresses of all local and remote network adapters, explore switches for remote targets, and export results in CSV or clipboard-ready format.
The Magic of NETSH Command20:11
Learn the netsh command line utility in Windows to manage network components such as interfaces, firewall, routing, wlan, dhcp, and http. See commands for ip, dns, export, and remote management.
Identifying system Connections using NETSTAT Command10:36
Learn how to use netstat to display all connections and listening ports, inspect protocol, addresses, and state, filter for established connections, and identify the responsible process for security.
Identifying Network Route using TRACERT8:48
Learn to identify the network route from your host to a destination with tracert, tracing hops and per-hop latency to diagnose connectivity and verify network changes.
Viewing & Modifying Local IP Routing Table5:42
View and modify the local ip routing table in Windows by adding, deleting, and persisting routes with route print, route add, and route delete.

Requirements

There are no prerequisites for this course. However, a basic understanding of computer networks and information technology is recommended.

Description

This course provides a comprehensive introduction to the foundational principles of physical networking. Students will learn about the hardware, cabling, and devices that form the backbone of modern networks. Through a combination of lectures, hands-on exercises, and lab work, participants will gain practical skills in designing, implementing, and troubleshooting physical network infrastructures.

Topics Covered:

Introduction to Physical Networking
Network Topologies
Network Devices and Hardware
Cabling and Connectors
Network Media (Copper, Fiber, Wireless)
Network Standards and Protocols
Network Security and Physical Security
Network Maintenance and Troubleshooting
Emerging Trends in Physical Networking

Course Objectives:

Understand the fundamental concepts of physical networking
Identify and differentiate between various network topologies
Recognize different types of network devices and their functions
Select appropriate cabling and connectors for different network environments
Explain the importance of network standards and protocols
Implement basic network security measures
Perform basic network maintenance and troubleshooting tasks
Discuss emerging trends and technologies in physical networking

Prerequisites:

Basic understanding of computer hardware and operating systems.

Course Format:

This course is delivered in a combination of lectures, hands-on labs, and practical exercises. Students will have access to networking equipment and tools to simulate real-world scenarios and gain practical experience.

Target Audience: This course is suitable for anyone interested in learning the fundamentals of physical networking, including IT professionals, network administrators, and system engineers.

Who this course is for:

This course is designed for individuals interested in pursuing a career in network administration, network engineering, or IT infrastructure. It is also suitable for professionals seeking to enhance their knowledge and skills in physical networking.

Essentials of Physical Network Connectivity

What you'll learn

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Course content

Understanding Physical Networking9 lectures • 1hr 14min

Practical Labs to Simulate Realtime Environment4 lectures • 34min

Bonus Lectures: Important Network Commands9 lectures • 1hr 48min

Requirements

Description

Who this course is for: