VLANs and Trunk

Question 1

Benefits of using VLANs

Answer 1

Imporved Security, Enhanced Performance, Simplified Management

Question 2

What happens when a computer connected to a switch sends a broadcast, such
as an ARP request?

Answer 2

switch floods the broadcast to devices, recipient responds with ARP reply, allowing sender to update and establish connection

Question 3

Are VLANs logical or physical divisions

Answer 3

LOGICAL

Question 4

Which Layer are VLANs a part of?

Answer 4

Layer 2

Question 5

What are the different types of VLANs?

Answer 5

Default
Data
Voice
Management
Native

Question 6

What 2 main modes do swtichports operate in?

Answer 6

Access - carry traffic only on VLAN which they belong to
Trunk - carry traffic for different VLANs and devices

Question 7

What is Trunking?

Answer 7

transmits multiple VLAN traffic sessions over same physical connection
-Done by tagging frames with source VLAN

Question 8

What does Inter-Switch Link Protocol do?

Answer 8

adds VLAN information to Ethernet frames

Question 9

What is Dynamic Trunking Protocol?

Answer 9

Automates the creation of trunk links - saves time and prevents misconfiguration

Question 10

What are the 2 different DTP modes?

Answer 10

Dynamic Auto - passive, doesn’t negotiate. waits until request is received then establishes trunk link

Dynamic Desirable - attempts to change mode of interface [via packets] to establish trunk link

Question 11

What does a Native VLAN do?

Answer 11

process untagged frames when they reach trunk ports (VLAN 1 is the default Native VLAN)