Free CCNA 200-301 Domain 3 (IP Connectivity) practice test: 30 random questions per retake from a 91-question lab-validated…
PC1 cannot reach PC2. The ping times out, and a whole subnet of users is stuck on the…
Every device on a subnet sends off-network traffic to a single default gateway. That one address is also…
Router-on-a-stick gets inter-VLAN routing working, but it routes in software and squeezes every packet between VLANs through one…
Put two computers in different VLANs on the same switch and they cannot reach each other. That is…
Static routes work fine until you have more than a few of them. Single-area OSPF is where most…
Every router running OSPF builds an identical map of the network and then works out its own best…
IPv6 static routes look like their IPv4 cousins until you hit the parts that are genuinely different, and…
When the primary link drops, a backup route has to take over, and on a Cisco router that…
A packet arrives on one interface and leaves on another, and everything a router does happens in the…
Read the Cisco IP routing table with show ip route: route codes, administrative distance vs metric, longest-prefix match,…
Test your CCNA 200-301 Domain 2 (Network Access) knowledge: VLANs, trunking, CDP/LLDP, spanning tree, EtherChannel, and wireless, with…
