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Introduction to Computer Networks for Non-Techies
Section 1: Course Introduction
Course Introduction and Overview (8:49)
Beginner-Friendly Labs (1:32)
Course Lecture PDFs
Section 2: Overview and Benefits of Computer Networks
What Is a Computer Network? (2:33)
Some Basic Computer Networking Rules (3:24)
Types of Networks (by Size) (5:43)
Peer-to-Peer vs. Client-Server Architecture (6:24)
Why Build a Computer Network? (6:36)
Section 3: Course Primer: How Computer Networks Work
Section Introduction (0:28)
Introduction to Computer Networking Protocols (5:57)
Introduction to the OSI Model (8:03)
Introduction to the TCP/IP Model (3:54)
Introduction to MAC Addresses (6:11)
Introduction to IP Addresses (2:46)
IP versus MAC Addresses (4:34)
Duplex Communication (1:38)
Network Transmission Types (3:11)
Introduction to Ethernet (2:02)
Lab #1: Installing Cisco Packet Tracer (9:03)
Lab # 2: Connecting two PCs Together (6:57)
How Computer Networks Work Quiz
Section 4: Network Topologies
Section Introduction (0:17)
Physical vs. Logical Topologies (2:47)
Wired Network Topologies (13:11)
Wireless Network Topologies (4:45)
Lab # 3: Create Physical Wired Topologies (4:35)
Network Topologies Quiz
Section 5: Networking Devices
Section Introduction (0:31)
Network Interface Cards (NICs) (2:29)
Hubs (5:48)
Switches (7:31)
Wireless Access Points (2:20)
Wireless Range Extenders (2:02)
Routers (5:45)
Modems (3:20)
All-in-One SOHO Devices (3:11)
Media Converters (1:06)
Firewalls (6:35)
DHCP Servers (2:43)
VoIP Endpoints (2:29)
Lab # 4: Creating a Simple Home LAN (4:45)
Network Devices Quiz
Section 6: Network Cabling
Section Introduction (0:21)
Types of Network Cabling (0:30)
Ethernet Standards (8:15)
Coaxial Cabling (4:14)
Twisted Pair Copper Network Cabling (10:51)
Wiring Standards: 568A & 568B and Cable Types (16:55)
Live Demonstration: Creating a Network Cable (9:09)
Plenum-Rated Cabling (3:08)
Fiber Optic Network Cabling (12:01)
Networking Cable Selection Criteria (3:13)
Lab # 5: Exploring Network Cabling (6:39)
Network Cabling Quiz
Section 7: The OSI Model
Section Introduction (0:24)
OSI Layer 7 - The Application Layer (3:12)
OSI Layer 6 - The Presentation Layer (2:54)
OSI Layer 5 - The Session Layer (3:47)
OSI Layer 4 - The Transport Layer (5:14)
OSI Layer 3 - The Network Layer (5:37)
OSI Layer 2 - The Data Link Layer (6:41)
OSI Layer 1 - The Physical Layer (2:32)
OSI Model Data Encapsulation and De-Encapsulation (5:31)
OSI Model Quiz
Section 8: Planning a Network
Section Introduction (0:56)
Why We Plan (6:33)
The Overall Process (2:44)
Understanding the Business (4:49)
Establishing a Business Need (5:30)
Defining Specific Areas of Improvement (4:05)
Buy-in and Resources (2:20)
Hidden Costs (3:34)
Other Considerations (4:36)
Planning Questions (3:23)
The Next Steps (2:39)
Section 9: Introduction to TCP/IP
Section Introduction (0:50)
What is TCP/IP? (2:32)
TCP/IP Protocols (2:35)
Network Access Methods (3:47)
Introduction to TCP/IP Quiz
Section 10: TCP/IP Network Layer Protocols
Address Resolution Protocol (ARP) (6:36)
ARP Live Demo: ARP Command on Windows, Linux, and Mac (2:58)
The Internet Protocol (IP) (8:12)
Internet Control Message Protocol (ICMP) (9:13)
Ping Live Demo: Ping Command on Windows and Mac (4:39)
Live Demo: Wireshark ARP & ICMP Packet Analysis (6:04)
TCP/IP Network Layer Protocols Quiz
Section 11: TCP/IP Transport Layer Protocols
Understanding Protocols, Ports and Sockets (14:47)
TCP vs UDP (13:55)
Closing TCP Sessions (1:48)
TCP/IP Transport Layer Protocols Quiz
Section 12: Common TCP/IP Application Layer Protocols
Management Protocols (14:42)
Remote Communication Protocols (6:49)
File Transfer Protocols (6:52)
Email Protocols (11:13)
Web Browser Application Protocols (5:45)
Live Demo: FileZilla FTP Server & Importance of Encryption (7:54)
TCP/IP Application Layer Protocols Quiz
Section 13: Understanding IPv4 Addresses & Binary Math
Section Introduction (0:50)
Understanding IPv4 Addresses (10:36)
Binary Math Basics (18:17)
Binary Math Student Exercise Worksheet
Section 14: A Deeper Dive into IPv4 Addresses and Subnet Masks
IP Address Classification and Subnet Masks (23:25)
The Power of 2's (3:39)
Public versus Private IP Addresses (8:40)
Public versus Private IP Addresses Visualized (3:53)
The Loopback IP Address (6:26)
Lab # 6: Assigning Static IP Addresses to LAN (8:32)
IPv4 Addresses and Subnet Masks Quiz
Section 15: Introduction to Subnetting
Introduction to Subnetting (22:30)
Subnetting Reference Tables (1:20)
Subnetting a Class C Network #1 (6:26)
Visualizing Subnetting a Class C Network #1 (5:08)
Subnetting a Class C Network #2 (3:34)
Visualizing Subnetting a Class C Network #2 (3:15)
Lab # 7: Create Two LANs on Different Subnets (6:48)
Subnetting Quiz
Section 16: IP Addressing Version 6 (IPv6) Fundamentals
Section Introduction (1:21)
Disadvantages of IPv4 and IPv6 Solutions (11:53)
IPv6 Addressing (11:59)
IPv6 Transmission Types (1:41)
Types of IPv6 Addresses (4:12)
IPv4 to IPv6 Translation & Compatibility (4:33)
IPv6 Neighbor Discovery Protocol (1:50)
IPv6 Fundamentals Section Quiz
Section 17: Assigning IP Addresses
Section Introduction (0:37)
Static vs. Dynamic IP Address Assignment (3:12)
IPv4 Dynamic IP Address Assignment (12:19)
Live Demo: IPv4 DHCP and APIPA (12:17)
Live Demo: Windows Server 2016 DHCP Server (6:49)
Lab # 8: Utilizing DHCP to Assign IP Addresses to LAN (8:46)
Assigning IP Addresses Section Quiz
Section 18: DNS Fundamentals
Section Introduction (0:20)
DNS Overview and Hierarchy (8:05)
Common DNS Record Types (10:11)
Live Demo: NSLookup Command (2:33)
Lab # 9: DNS and Web Server Configuration (5:49)
DNS Fundamentals Section Quiz
Section 19: Understanding Switches
Section Introduction (0:41)
Refresher on Switches (2:40)
Collision Domains (8:40)
Broadcast Domains (4:38)
CSMA/CD (3:18)
Managed versus Unmanaged Switches (2:49)
How a Switch Learns MAC Addresses (3:21)
Virtual LANs (VLANs) (7:56)
Layer 3 Switches (2:58)
Port Mirroring (1:20)
Power over Ethernet (PoE) (2:25)
Lab # 10: Setting up Two Departmental VLANs (5:55)
Understanding Switches Section Quiz
Section 20: Understanding Routers
Section Introduction (0:52)
Refresher on Routers (1:54)
The Routing Process (8:31)
Static versus Dynamic Routing (6:04)
IGPs & EGPs (7:59)
Interior Gateway Protocols (IGPs) (13:26)
Border Gateway Protocol (BGP) (2:03)
Routing Tables and AD (7:46)
The Default Route (2:03)
Lab # 11: Configuring Routers with RIP (10:26)
Understanding Routers Section Quiz
Section 21: Network Segmentation
Section Introduction (0:50)
Network Address Translation (NAT) (8:03)
Demilitarized Zone (DMZ) (5:27)
Port Forwarding (2:53)
Access Control Lists (ACLs) (4:28)
Network Segmentation Section Quiz
Section 22: Wireless Networking and IoT
Section Introduction (1:17)
Overview of Wireless Networking (12:01)
Understanding Service Set Types (2:44)
Wireless Frequencies and Channels (13:40)
802.11 Standards and MIMO (14:35)
Deploying Wireless Networks (12:21)
Wireless Network Vulnerabilities & Security (12:48)
Internet of Things (IoT) (11:28)
Lab # 12: Adding a Wireless Access Point to a LAN (7:24)
Wireless Networking Section Quiz
Section 23: Wide Area Networking
Section Introduction (0:38)
WAN Connection Types (12:17)
WAN Transmission Mediums (5:42)
WAN Termination Concepts (4:03)
WAN Broadband Services (0:46)
Dial-Up (1:40)
T-Carrier & E-Carrier Digital Signal Lines (4:12)
DSL (4:49)
Cable Broadband (3:35)
Metropolitan Ethernet (2:28)
WAN Protocols (2:16)
Wide Area Networking Section Quiz
Section 24: Network Security
Section Introduction (1:20)
The CIA Triad (4:05)
Least Privilege (1:57)
Acceptable Use Policy (2:17)
Defense in Depth (3:52)
Intranet, Extranet and the Internet (5:04)
VPN (7:36)
Firewalls (9:29)
Web Proxy Servers (2:42)
Network Intrusion Detection & Prevention (2:54)
Lab # 13: Configure Server Firewall to Block ICMP Requests (4:54)
Network Security Section Quiz
Section 25: Software Defined Networking (SDN)
Section Introduction (0:36)
Introduction to SDN (3:37)
SDN Conceptual Diagram (6:05)
Benefits of SDN (3:07)
SDN Section Quiz
Section 25: Designing a Network
Designing a Network (2:47)
Step 1: Identify the Uses of the Network (1:46)
Step 2: List Which Tasks Execute on Which Computers (2:26)
Step 3: Select the Type of Network: Centralized or Not? (6:51)
Step 4: Select the Proper Equipment (18:31)
Step 5: Draw the Network (3:19)
Step 6 & 7: Write the Specifications & Build It! (9:30)
Section 26: Follow-Along Case Study Network Design Scenarios
Section Introduction (1:54)
Case Study Analysis Instructions (2:25)
Case Study #1: H&M Law Firm Walk-Through (4:06)
Case Study #1: H&M Law Firm Network Design Proposal Analysis (14:08)
Case Study #2: San Bernardo Dentistry Walk-Through (2:17)
Case Study #2: San Bernardo Dentistry Analysis (7:17)
Section 27: Conclusion
Congratulations! (0:37)
Buy-in and Resources
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