VLAN

Question 1

What is vlan tagging?

Answer 1

VLAN tagging is used so the switch knows which port to use to forward the frame (broadcast or unicast)

Question 2

What types of VLANs are there?

Answer 2

Default VLAN - VLAN 1, cannot be deleted
Data VLAN - carries user-generated traffic
Native VLAN - Can be deleted, uses 802.1Q for untagged frames
Management VLAN - also VLAN1 by default, used for things other than user data

Question 3

What are the benefits of VLAN?

Answer 3

Reduces broadcast domain, enhances security, reduces cost, better performance, segmented

Question 4

VLAN ID range

Answer 4

standard: 0-1001; extended: 0 to 4095; 0 not used, 1002-1005 used for FDDI

Question 5

What is Dynamic Trunking Protocol (DTP)?

Answer 5

Allows a switch to negotiate between trunk and access

Question 6

What switchports mode do you use in VLAN?

Answer 6

Access, dynamic auto, dynamic desirable, trunk