VLANS and Trunking

Question 1

What are issues with Broadcast Domains? (4)

Answer 1

1) more nodes -> more BUM traffic -> more processing
2) more nodes -> more to manage on one network
3) layer 2 security issues, harder to mitigate
4) no multipath forwarding or load balancing

Question 2

What are VLANs?

Answer 2

logical grouping of nodes and the switch ports to which they are connecting that is not dependent upon geography

Question 3

True or False: Each VLAN is one broadcast domain

Answer 3

True

Question 4

True or False: Each VLAN behaves like a layer 3 network?

Answer 4

true

Question 5

What does layer forwarding decision does the VLAN need for traffic to travel beyond the VLAN?

Answer 5

Layer 3

Question 6

What is a static VLAN?

Answer 6

A VLAN that is manually set switch interfaces to a VLAN

Question 7

What are the two types of links?

Answer 7

Trunk and Access links

Question 8

What do Access Links do?

Answer 8

Connects a VLAN-aware node(switch) to a VLAN-unaware node (client)

Question 9

What do Trunk Links do?

Answer 9

Connects two VLAN-aware nodes

Question 10

What is VLAN tagging?

Answer 10

Identifying a frame as part of a specific VLAN over a trunk link

Question 11

With the IEEE 802.1Q standard what is Switching/Layer2 forwarding based on?

Answer 11

destination MAC address and VLAN