01
block-0004Networking Today
Network roles, topologies, LANs and WANs, Internet access, network reliability, trends, and security.
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S1 / COURSE SEMESTER 1 / INTRODUCTION TO NETWORKS
Networking, from
the fundamentals up.
This course follows the 17-module Cisco Introduction to Networks sequence found in the lecture material. The course was reconstructed from the recovered OneNote text and its 2,646 image assets. Lessons cite the relevant source blocks and screenshots; diagram-dependent details and OCR-derived answer keys remain subject to visual verification.
All 17 modules have dedicated lesson routes with source references. The depth of source-specific reconstruction varies by module: some topics are supported by recovered text blocks, while others rely more heavily on screenshots and diagrams. A source reference documents provenance; it does not by itself mean every visual detail has been independently verified.
02
IMG-0144Basic Switch and End Device Configuration
Cisco IOS access, command modes, device configuration, management addressing, and connectivity verification.
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03
IMG-0218Protocols and Models
Protocol rules, protocol suites, standards organizations, OSI and TCP/IP models, encapsulation, and data access.
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04
IMG-0371Physical Layer
Physical-layer purpose, signals, bandwidth, copper cabling, fiber-optic cabling, and wireless media.
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05
IMG-0390Number Systems
Binary and hexadecimal number systems, conversions, and their use in network addressing.
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06
IMG-0424Data Link Layer
Layer 2 purpose, framing, topologies, media access, and the LLC and MAC sublayers.
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07
IMG-0478Ethernet Switching
Ethernet frames and MAC addresses, MAC address tables, switching methods, and switch forwarding.
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08
IMG-0641Network Layer
IPv4 and IPv6 packets, network-layer characteristics, host routing, and router routing tables.
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09
IMG-0660Address Resolution
IPv4 ARP tables and requests, IPv6 Neighbor Discovery, and ICMPv6 messages.
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10
IMG-0738Basic Router Configuration
Initial router settings, interface configuration, default gateways, and connectivity verification.
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11
IMG-0888IPv4 Addressing
IPv4 structure, unicast/broadcast/multicast, public/private addresses, subnetting, VLSM, and address planning.
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12
IMG-0969IPv6 Addressing
IPv6 notation, address types, GUAs and LLAs, static and dynamic addressing, SLAAC, and subnetting.
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13
IMG-1123ICMP
ICMP and ICMPv6 messages, ping, traceroute, and connectivity testing.
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14
IMG-1168Transport Layer
TCP and UDP, port numbers, reliability, flow control, and transport communication.
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15
IMG-1263Application Layer
Application protocols, web and email protocols, IP addressing services, and file-sharing services.
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16
IMG-1510Network Security Fundamentals
Threat actors, malware, network attacks, device security, secure management, and defense in depth.
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17
IMG-1449Build a Small Network
Small-network devices and applications, scaling, host and IOS commands, and troubleshooting methodology.
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