Course

Recognize routers, switches, firewalls and end hosts and where each sits in a network diagram.

3 videos · 22 cards · Jeremy's IT Lab, source topic 1

Identify physical media, interface types, speed/duplex settings and Power over Ethernet basics.

2 videos · 57 cards · Jeremy's IT Lab, source topic 2

Use the OSI and TCP/IP models to describe encapsulation and where protocols operate.

2 videos · 41 cards · Jeremy's IT Lab, source topic 3

Navigate Cisco IOS command modes, help and editing keys for everyday device work.

2 videos · 28 cards · Jeremy's IT Lab, source topic 4

Read Ethernet frame fields and how switches learn and forward MAC addresses.

1 video · 39 cards · Jeremy's IT Lab, source topic 5

Follow MAC address learning, flooding and filtering decisions on a switch.

2 videos · 17 cards · Jeremy's IT Lab, source topic 6

Describe IPv4 address structure, dotted-decimal notation and address classes.

1 video · 27 cards · Jeremy's IT Lab, source topic 7

Explain network, host and broadcast addresses and basic address planning.

2 videos · 17 cards · Jeremy's IT Lab, source topic 8

Interpret interface status codes and error counters such as CRC and collisions.

2 videos · 23 cards · Jeremy's IT Lab, source topic 9

Read the main IPv4 header fields including TTL, protocol and fragmentation.

1 video · 56 cards · Jeremy's IT Lab, source topic 10

Explain routing tables, longest-prefix match and how static routes are configured.

4 videos · 17 cards · Jeremy's IT Lab, source topic 11

Trace how a packet is encapsulated and forwarded hop by hop between subnets.

2 videos · no deck · Jeremy's IT Lab, source topic 12

Convert between prefix lengths and dotted-decimal masks and size subnets.

1 video · 21 cards · Jeremy's IT Lab, source topic 13

Calculate subnet boundaries quickly for common prefix lengths.

1 video · no deck · Jeremy's IT Lab, source topic 14

Apply variable-length subnetting to allocate space efficiently without overlap.

2 videos · no deck · Jeremy's IT Lab, source topic 15

Explain how VLANs segment a switch into separate broadcast domains.

2 videos · 12 cards · Jeremy's IT Lab, source topic 16

Configure access and 802.1Q trunk ports and the role of the native VLAN.

2 videos · 33 cards · Jeremy's IT Lab, source topic 17

Explain inter-VLAN routing with router-on-a-stick and Layer-3 switch SVIs.

2 videos · 9 cards · Jeremy's IT Lab, source topic 18

Describe how DTP negotiates links and how VTP propagates VLAN information.

2 videos · 44 cards · Jeremy's IT Lab, source topic 19

Explain how Spanning Tree elects a root bridge and prevents Layer-2 loops.

2 videos · 36 cards · Jeremy's IT Lab, source topic 20

Use the STP toolkit including PortFast, BPDU Guard and root protection.

6 videos · 41 cards · Jeremy's IT Lab, source topic 21

Describe how RSTP converges faster with new port roles and link types.

2 videos · 39 cards · Jeremy's IT Lab, source topic 22

Bundle links with EtherChannel using static, PAgP or LACP negotiation.

2 videos · 18 cards · Jeremy's IT Lab, source topic 23

Compare dynamic routing protocols and how administrative distance breaks ties.

2 videos · 51 cards · Jeremy's IT Lab, source topic 24

Describe RIP metrics and EIGRP feasible-distance terminology.

2 videos · 43 cards · Jeremy's IT Lab, source topic 25

Explain OSPF areas, link-state logic and router ID selection.

2 videos · 34 cards · Jeremy's IT Lab, source topic 26

Interpret OSPF neighbor states and network types such as broadcast and point-to-point.

2 videos · 47 cards · Jeremy's IT Lab, source topic 27

List the parameters that must match for an OSPF adjacency and read LSA types.

2 videos · 40 cards · Jeremy's IT Lab, source topic 28

Explain how HSRP, VRRP and GLBP provide a redundant default gateway.

2 videos · 36 cards · Jeremy's IT Lab, source topic 29

Compare TCP and UDP headers, reliability features and common port numbers.

2 videos · 67 cards · Jeremy's IT Lab, source topic 30

Read IPv6 address notation, address types and prefix structure.

2 videos · 13 cards · Jeremy's IT Lab, source topic 31

Describe IPv6 neighbor discovery, SLAAC and how it replaces ARP.

2 videos · 75 cards · Jeremy's IT Lab, source topic 32

Configure IPv6 static routes and default routes on Cisco routers.

2 videos · 45 cards · Jeremy's IT Lab, source topic 33

Match standard numbered and named ACLs and apply them close to the destination.

2 videos · 22 cards · Jeremy's IT Lab, source topic 34

Write extended ACLs that filter on source, destination and ports.

2 videos · 26 cards · Jeremy's IT Lab, source topic 35

Explain what CDP and LLDP reveal about directly connected neighbors.

2 videos · 40 cards · Jeremy's IT Lab, source topic 36

Describe NTP strata, client/server roles and why consistent clocks matter.

2 videos · 39 cards · Jeremy's IT Lab, source topic 37

Explain how DNS resolves names and the difference between record types.

2 videos · 20 cards · Jeremy's IT Lab, source topic 38

Describe DHCP address assignment, relay agents and lease renewal.

2 videos · 26 cards · Jeremy's IT Lab, source topic 39

Explain SNMP agents, managers, MIBs, OIDs, versions and trap versus inform.

2 videos · 33 cards · Jeremy's IT Lab, source topic 40

Read Syslog severity levels, message format and logging destinations.

2 videos · 40 cards · Jeremy's IT Lab, source topic 41

Describe SSH authentication, encryption and how it replaces Telnet.

2 videos · 28 cards · Jeremy's IT Lab, source topic 42

Compare FTP and TFTP behavior and typical file-transfer uses on Cisco devices.

2 videos · 36 cards · Jeremy's IT Lab, source topic 43

Explain static NAT and one-to-one address translation at the edge.

2 videos · 19 cards · Jeremy's IT Lab, source topic 44

Explain dynamic NAT pools and PAT many-to-one translation.

2 videos · 14 cards · Jeremy's IT Lab, source topic 45

Describe QoS classification, marking and voice VLAN support.

2 videos · 41 cards · Jeremy's IT Lab, source topic 46

Explain queuing, shaping and policing and their effect on traffic.

2 videos · 55 cards · Jeremy's IT Lab, source topic 47

Summarize core security concepts, common attacks and AAA authentication.

2 videos · 54 cards · Jeremy's IT Lab, source topic 48

Configure switch port security and interpret violation actions.

2 videos · 34 cards · Jeremy's IT Lab, source topic 49

Explain how DHCP Snooping validates DHCP traffic on access ports.

2 videos · 21 cards · Jeremy's IT Lab, source topic 50

Explain how Dynamic ARP Inspection blocks ARP spoofing using the snooping table.

2 videos · 17 cards · Jeremy's IT Lab, source topic 51

Compare two-tier, three-tier and spine-leaf campus designs.

2 videos · 21 cards · Jeremy's IT Lab, source topic 52

Describe WAN connectivity options and GRE tunnel encapsulation.

2 videos · 37 cards · Jeremy's IT Lab, source topic 53

Explain virtualization, containers and how VRFs segment routing tables.

4 videos · 32 cards · Jeremy's IT Lab, source topic 54

Describe wireless standards, frequency bands and channel planning basics.

1 video · 69 cards · Jeremy's IT Lab, source topic 55

Explain how lightweight APs join a WLC over CAPWAP tunnels.

1 video · 57 cards · Jeremy's IT Lab, source topic 56

Describe WPA2/WPA3 personal and enterprise modes and 802.1X.

1 video · 43 cards · Jeremy's IT Lab, source topic 57

Follow a typical wireless LAN configuration on a controller.

2 videos · 34 cards · Jeremy's IT Lab, source topic 58

Outline network automation concepts and where AI/ML features apply.

2 videos · 22 cards · Jeremy's IT Lab, source topic 59

Read JSON, XML and YAML structures used by automation tools.

1 video · 26 cards · Jeremy's IT Lab, source topic 60

Explain REST API requests, responses and common authentication methods.

2 videos · 38 cards · Jeremy's IT Lab, source topic 61

Describe SDN architecture and the role of controllers such as DNA Center.

1 video · 19 cards · Jeremy's IT Lab, source topic 62

Compare Ansible, Puppet, Chef and Terraform configuration approaches.

2 videos · 27 cards · Jeremy's IT Lab, source topic 63

Apply the full course by configuring a complete network end to end.

1 video · no deck · Jeremy's IT Lab, source topic 64