Virtual LANs - Technical MCQs

Q1:

Which of the following provide inter-switch VLAN communication?
  1. ISL
  2. VTP
  3. 802.1Q
  4. 802.3Z

A 2 only

B 1 and 3

C 2 and 4

D 2, 3 and 4

ANS:B - 1 and 3

ISL is a Cisco-proprietary frame-tagging method. IEEE 802.1Q is the nonproprietary version of frame tagging.