CCNA

Explore automation and programmability in networking, using python, javascript, and yaml to reduce manual effort and errors, enable zero-touch installations, and simplify device provisioning through APIs and rest concepts.

Understand the router booting sequence and register values, including bootstrap, post, rom, and flash loading. Explore startup configuration, setup mode, and how configuration register 2142 guides password recovery and troubleshooting.

Explore Cisco CCNA basics, covering network fundamentals, switches, routers, VLANs, routing protocols, IP version 6, ACLs, NAT, firewall concepts, and automation for certification readiness.

Cisco discovery protocol identifies and details neighboring devices at the data link layer, with update timers and interface-level configuration to map network topology.

Explore configuration management tools like Ansible and Puppet and automation strategies to maintain a unified configuration management database, track devices, provision infrastructure, and coordinate across networks, servers, and security policies.

Configure AAA with wireless LAN controllers using radius and TACACS to authenticate, authorize, and account users; implement multifactor authentication, redundancy, and load balancing to ensure secure, available network access.

Configure backup and restore using tftp, schedule daily and weekly backups, back up startup configurations, and restore quickly to maintain redundancy for wireless controllers and switches.

Learn to configure a gre tunnel to encapsulate multiple protocols over ip, set source and destination, enable the tunnel interface, and verify connectivity on both ends.

Configure a layer-2 switch within a core-distribution-access design, set up VLANs and IP addresses, define default gateways, secure with passwords, and verify inter-switch connectivity to the router.

Configure OSPF by enabling SPF, selecting a common area, and using network commands with wildcard masks to advertise networks, while learning neighbor information, cost metrics, and troubleshooting steps.

Configure a router with basic parameters, including hostname, interface IP addresses, and startup configuration. Set banners, timeouts, logging, time synchronization, and essential show and interface commands for reliable network setup.

Configure a Cisco router with basic parameters by setting the hostname, IP addresses on interfaces, enabling interfaces, and saving configurations via copy running-config startup-config.

Enable IPv6 unicast routing globally, configure IPv6 on interfaces, assign global unicast addresses with a 64-bit prefix, and use link-local, stateless auto configuration, or DHCPv6 for addressing.

Configure ipv6 routing across a three-router lab by assigning ipv6 addresses to interfaces and implementing static and default routes, with ping tests and interface brief checks.

Configure and manage vlans on switches, including creating and naming vlans, assigning ports as access or trunk, and enabling 802.1Q trunk encapsulation for inter-switch connectivity.

Explore configuring wireless devices, performing site surveys and RF planning to optimize access point deployment, coverage, and centralized control via wireless LAN controllers and CAPWAP.

Configure wireless devices using a wireless LAN controller, VLAN segmentation, and IP addressing in CCNA. Learn to manage trunk and service ports, AP joining, and certificate-based registration.

Explore IP subnetting fundamentals by learning how to divide a large network into smaller subnets, determine subnet masks, borrow host bits, and apply slash notation for efficient IP address management.

Learn to subnet classful IP addresses using borrowed bits and subnet masks, compute subnets, usable hosts, and broadcast addresses with practical examples.

Learn class B subnetting by borrowing bits to form subnets, determine subnet masks, and count usable hosts. Use examples like 172.16.x.x and /30 for point-to-point links and network addresses.

Master subnetting concepts in this lecture, including variable length subnet masks and supernetting, to optimize address usage. Use classless routing protocols and subnet calculators to plan subnets and hosts efficiently.

Configure and manage wireless LAN controllers and access points with policy-based controls for scalable networks. Explore console ports, web interfaces, DHCP and static IP, and redundancy for out-of-band management.

Configure interface groups on wireless controllers, choose between web and command options, and automate deployments with batch scripts for rapid, high-availability setups across controllers.

Explore how interconnecting devices such as hubs, bridges, switches, routers, and gateways enable local and wide area networks, serve as the backbone, and improve data transfer.

Set up a 24/7 network monitoring system with an NOC dashboard, S.A.M. (simple network monitoring protocol) polling, and automated alerts to manage traffic and device health.

Learn how to implement and administer network monitoring systems with automated discovery, centralized dashboards, capacity management, and targeted alerts, using tools like Solomon's IP monitoring and Wireshark for troubleshooting.

Explore the seven OSI layers from physical to application, and see how encapsulation enables inter-device communication using IP, MAC addresses, and routing.

Explore common network topologies—star, bus, ring, mesh, and hybrid—along with their advantages, disadvantages, and practical use with hubs, switches, cables, and terminators.

Implement strong password policy management to prevent unauthorized access by enforcing length, complexity, and expiration through Active Directory and Group Policy, while educating users on secure password practices.

Explore single sign-on and domain-based password policy management across Windows, Linux, and services, including certificate-based authentication, multifactor authentication, Kerberos tickets, and centralized login.

Learn how to secure network access with authentication, authorization, and accounting by applying domain-based authentication, restricted command access, and auditing with radius-based integration.

Configure a radius server to secure network access by integrating with a domain controller, enabling local and domain-based authentication, and opening the firewall port for remote devices.

Explore securing network access with TACACS+ for authentication, authorization, and accounting on Cisco devices. Compare TACACS+ with RADIUS and review the integrated authentication, authorization, and accounting, plus logging coverage described.

Enforce secure network access through strict user account management, password hygiene, audits, and hardening standards; apply break-glass, disable departing users promptly, and rename admin accounts to reduce risk.

Protect routers by configuring enable and console passwords, using enable secret for encrypted access, and enabling service password encryption to conceal credentials on console and remote lines.

Secure switch ports by enabling port security, restricting non-authorized MAC addresses, configuring aging and maximums, using sticky MACs, and choosing between restrict or shutdown violations.

Learn how static and default routing move packets between networks, build and verify routing tables, and configure next-hop, exit interfaces, and administrative distance for permanent routes.

Evaluate how NAT saves public IP addresses by translating private IPs to externals. Compare static, dynamic, and port address translation with inside/outside address concepts.

Learn how dhcp automates ip address assignment with scopes and lease management to prevent conflicts, and configure dns for domain name resolution and domain lookup.

Explore the enhanced interior gateway routing protocol (EIGRP), a Cisco hybrid distance-vector protocol that uses the dual algorithm, neighbor discovery, and topology tables to optimize dynamic routing.

Explore first-hop redundancy protocols to ensure 24/7 availability, configuring redundant gateways with virtual IP and MAC, standby groups, and load balancing using delay timers and hello messages.

Understand fhrp concepts with hsrp details: configure a virtual ip address, designate active and standby routers, perform preemption and elections for failover, and verify status and priorities.

Learn how to configure and synchronize network time with NTP across devices and implement SNMP monitoring, including MIBs, versions, authentication, traps, and centralized management.

Learn how RIP uses hop counts and distance vectors to determine paths and manage administrative distance. Practice removing static routes, enabling version 2, and verifying connectivity.

Configure and forward device logs to a syslog server, enabling timestamps, sequence numbers, and severity levels for efficient troubleshooting, while securing remote access with SSH and PuTTY.

Learn router basics, how layer 3 devices interconnect networks, manage routing tables with automatic updates, and configure Cisco IOS memories, startup and running configs, interfaces, and access control.

Explore the access control list to block or allow traffic, using standard and extended access control lists, applying them on interfaces with wildcard masks and ports.

Explore IP addressing architecture, subnet masks, and IPv4/IPv6, with classful ranges, subnetting, and key concepts like unicast, multicast, broadcast, NAT considerations, and related protocols.

Learn the fundamentals of IPv6 addressing, including 128-bit addresses and eight 16-bit groups. Apply leading-zero suppression, double colon compression, and understanding global, link-local, and unique local addresses.

Explain IPv6 addressing fundamentals, including stateless auto configuration, local unicast and global addresses, and how MAC addresses are transformed into 64-bit interface identifiers using EUI-64.

Explore IPv6 addressing and stateless address autoconfiguration via router solicitation and router advertisement. Examine NDP neighbor discovery, duplicate address detection, and MTU behavior in IPv6.

Explore layer 2 switching basics: MAC address learning and address tables, fast forwarding decisions, and loop avoidance with spanning tree, cut-through and fragment-free options.

Learn how ospf operates as an open, multivendor interior gateway protocol, using hello packets, adjacency, topological database, flooding, and spf to compute shortest paths.

Explore how quality of service manages network bandwidth by classifying traffic, marking data with DSCP/CoS, and enforcing policies to prioritize voice and video while reducing delay and packet loss.

Explore QoS concepts, traffic classification, and deep packet inspection to validate applications, then apply policing, shaping, and scheduling (CBWFQ, RR, WRED) to manage congestion.

Explore software defined networking components, centralized control architectures, campus and spine-leaf designs, and the underlay-overlay roles in Cisco DNA, DNA Center, and open daylight.

Compare traditional networks with SDN, and explore the SDN three-plane model (management, control, data) plus northbound and southbound interfaces, OpenFlow/OpenDaylight, and monitoring and troubleshooting concepts.

Explore security fundamentals, identify internal and external threats, and review common network attacks such as eavesdropping, denial of service, and access attacks, with prevention via firewalls and ACLs.

Identify key network security threats such as brute-force password attacks, man-in-the-middle, phishing, and malware, and learn defenses including multifactor authentication, antivirus, firewalls, and physical access controls.

Understand how the spanning tree protocol prevents loops by electing a root bridge, blocking redundant links, and gradually transitioning ports from blocking to forwarding during convergence.

Discover how virtualization creates virtual networks, firewalls, and desktops on shared hardware, reducing cost and provisioning time while laying the foundation for cloud computing.

Understand VLANs as logical groupings on a switch that segment networks, secure data, reduce broadcast traffic, and use access and trunk ports with inter-VLAN routing for controlled cross-VLAN communication.

Discover how virtual private networks enable real-time encrypted communication over the public internet, with client-to-site and site-to-site VPNs, SSL options, and scalable, cloud-based deployments.

Explore how vpn technologies secure office networks and remote access using ipsec, l2tp, and gre encapsulation, with aes, des, and public-private key authentication.

Explore wireless technologies, from Bluetooth PANs to WLANs, including access points, wireless LAN controllers, antennas, and security considerations, and learn how adapters bridge wired and wireless networks.

Explore WLAN concepts from basic and extended service sets to access points, SSIDs, and security profiles, plus infrastructure, repeaters, bridges, and mesh for scalable networks.

Understand wlan frequencies, non overlapping 2.4 ghz channels (us 1,6,11) and the benefits of site surveys and multiple access points; learn rf propagation effects like attenuation, reflection, diffraction, and scattering.

Explore wireless security from open authentication and WEP weaknesses to WPA, WPA2, and WPA3, including the 4-way handshake, per-frame keys, and dragonfly handshakes that resist dictionary attacks.