Review - Chapter 5

Question 1

Inter-VLAN Routing Devices

Answer 1

○ Any Layer 3 multilayer Catalyst switch
○ Any external router with an interface that supports trunking (router-on-a-stick)
○ Any external router or group of routers with a separate interface in each VLAN

Question 2

Multilayer Switch Interfaces

Answer 2

○ Routed port
○ Switch Virtual Interface (SVI)
○ Bridged Virtual Interface (BVI)

Question 3

Routed port

Answer 3

Pure Layer 3 interface similar to a routed port on a Cisco IOS router

Question 4

Switch Virtual Interface (SVI)

Answer 4

A virtual VLAN interface for inter-VLAN routing; SVIs are the virtual VLAN interfaces

Question 5

Bridged Virtual Interface (BVI)

Answer 5

Layer 3 virtual bridging interface

Question 6

Reasons to configure SVIs

Answer 6

○ To provide a gateway for a VLAN so that traffic can be routed into or out of that VLAN
○ To provide fallback bridging if it is required for non-routable protocols
○ To provide Layer 3 IP connectivity to the switch
○ To support routing protocol and bridging configurations

Question 7

Layer 3 EtherChannel

Answer 7

Port channels configured as routed ports

Question 8

Dynamic Host Configuration Protocol (DHCP)

Answer 8

A network protocol that enables network administrators to manage and automate IP configuration assignment

Question 9

DHCP Relay

Answer 9

To forward a DHCP broadcast across VLAN boundaries, the router needs to use the DHCP relay agent to forward the broadcast traffic in the detected unicast to the server

Question 10

DHCP Options

Answer 10

Option 43,69,70,150

Question 11

Option 43

Answer 11

Vendor-encapsulated option enables vendors to have their own list of options on the server

Question 12

Option 69

Answer 12

SMTP server, if you want to specify available SMTP servers to the client

Question 13

Option 70

Answer 13

POP3 server, if you want to specify available POP3 servers to the client

Question 14

Option 150

Answer 14

TFTP server that enables phone access to a list of TFTP servers