[&] If an SVI is displaying its state as "Down/Down" what is the first troubleshooting step you should take?
- Ensure that the command, "ip routing" has been configured.
- Ensure there is at least one physical port/interface that is "Up/Up" and carrying traffic from the same VLAN for which you've configured the SVI. -- Correct
- Ensure the SVI does not contain the "shutdown" command.
- Ensure the SVI has at least one IP address configured.

[&] You are in control of a multilayer switch that has already been configured with three VLANs (VLANs-1, 2 and 3). The IP Subnets assigned to these VLANs are shown below. You desire to configure this switch using SVIs such that it can serve as the Default-Gateway for all users on these VLANs. Which of the answers below indicate the correct way to do this? (**Select the best answer**)
```
VLAN-1 Subnet = 1.1.1.0 /24
VLAN-2 Subnet = 2.2.2.0 /29
VLAN-3 Subnet = 3.3.3.0 /28
```
- ```
enable
configure terminal
ip routing
vlan 1
ip address 1.1.1.1 255.255.255.0
vlan 2
ip address 2.2.2.1 255.255.255.248
vlan 3
ip address 3.3.3.1 255.255.255.240
end
```
- ```
enable
configure terminal
ip routing
interface vlan 1
ip address 1.1.1.1 255.255.255.0
no shutdown
interface vlan 2
ip address 2.2.2.1 255.255.255.248
no shutdown
interface vlan 3
ip address 3.3.3.1 255.255.255.240
no shutdown
end
``` -- Correct
- ```
enable
configure terminal
ip routing
vlan 1 ip address 1.1.1.1 255.255.255.0
vlan 2 ip address 2.2.2.1 255.255.255.248
vlan 3 ip address 3.3.3.1 255.255.255.240
end
```
- ```
enable
configure terminal
interface vlan 1
ip address 1.1.1.1 255.255.255.0
no shutdown
interface vlan 2
ip address 2.2.2.1 255.255.255.248
no shutdown
interface vlan 3
ip address 3.3.3.1 255.255.255.240
no shutdown
end
```

[&] After having configured two-or-more SVIs, adding IP addresses to them, and administratively enabling them, what additional commands must you configure (if any) to enable inter-VLAN routing on a switch?
- No additional commands are necessary
- Switch(config-if)#ip routing
- Switch(config)#ip routing -- Correct
- Switch(config)#route ipv4 enable