Inter-VLAN routing configuration on Cisco: legacy routing, router-on-a-stick with 802.1Q subinterfaces, and SVIs on a Layer 3 switch, with checks.
What a VLAN is, why networks use VLANs, and step-by-step VLAN configuration on Cisco switches: creating VLANs, access ports, 802.1Q trunks and verification.
What a network switch is, how it forwards frames, the main switch types, and a basic, secure network switch configuration on a Cisco switch.
Practical ACL questions and answers: write Cisco access lists for real scenarios, like permitting email only between two networks, with explained solutions.
Extended ACL examples: permit or deny traffic by source and destination address, protocol and port, with Cisco configuration commands.
Standard ACL examples: permit or deny specific hosts, networks and subnets using wildcard masks, with Cisco configuration commands.
The main types of ACLs in networking explained: standard, extended and named ACLs, plus time-based, reflexive and IPv6 ACLs, with Cisco syntax.
Access control list in networking explained: how ACLs work, how routers process them, wildcard masks, inbound vs outbound, rules and verification.
EIGRP explained: how Cisco's Enhanced Interior Gateway Routing Protocol works, DUAL, successors, the metric, packet types and configuration.
OSPF explained: how Open Shortest Path First works, hello packets, neighbour states, areas, DR and BDR, cost, and Cisco configuration with checks.
