You would like to configure an Ethernet interface with the following characteristics: ?
Fast Ethernet port 3/2 ?
192.168.1.1/24 ? VLAN 21 ?
Description “SNMP-Mgmt”
Which set of configuration commands accurately completes this task?

A.
interface fast 3/2
description SNMP-Mgmt
encap vlan
interface fast 3/2.21
vlan id 21
ip address 192.168.1.1 255.255.255.0

B.
interface fast 3/2
encap vlan
interface fast 3/2.21
vlan id 21
ip address 192.168.1.1 255.255.255.0
description SNMP-Mgmt

C.
interface fast 3/2
encap vlan
description SNMP-Mgmt
interface fast 3/2.21
vlan id 21
ip address 192.168.1.1 255.255.255.0

D.
interface fast 3/2
encap vlan
vlan id 21

interface fast 3/2.21
ip address 192.168.1.1 255.255.255.0
description SNMP-Mgmt