Exam Essentials Flashcards
What is frame tagging?
It refers to VLAN identification. It’s how switches identify which frames belong to which VLANs
What is the 802.1q VLAN identification method? How does it work?
Created by IEEE, a standard method of frame tagging. If trunking between a Cisco switched link and a different brand of switch, you have to use 802.1q.
It inserts field into the frame. That field contains the 12-bit VLAN ID. It identifies the VLAN and can carry information for 4094 VLANs.
How do you set a trunk port on a 2960 switch
You use ‘switchport mode trunk’ command
What is a router on a stick? What is it used for?
It is when you connect a LAN switch to a router with one Ethernet link configured as an 802.1q trunk link. Router performs inter-VLAN communications (routing between VLANs)
What is a layer 3 switch?
It acts as a switch to connect devices that are on the same subnet or virtual LAN at lightning speeds and has IP routing intelligence built into it to double up as a router.
Provides inter-VLAN routing
