RSE CCNA 2 Chapter 6 Quiz Online

A management VLAN is used to remotely access and configure a switch. Data VLANs are used to separate a network into groups of users or devices. The default VLAN is the initial VLAN all switch ports are placed in when loading the default configuration on a switch. The 802.1Q trunk port places untagged traffic on the native VLAN.

Before deleting an active VLAN, it is recommended that all ports currently assigned as a member of that VLAN be reassigned. Any port that is a member of a VLAN that is deleted will become unusable.

With router on a stick, subinterfaces are used on one physical router interface. One subinterface per VLAN is used in this design. When multiple interfaces are used on a router, each physical interface such as Gi0/0 and Gi0/1 is assigned one IP address. Each VLAN would require a physical interface. When routing via a multilayer switch, one SVI is assigned an IP address for each VLAN. Interdomain routing does not affect inter-VLAN communication.

A PC commonly connects to an IP phone and the IP phone, in turn, connects to a switch. The phone does not require a separate port. Because voice traffic cannot tolerate much packet delay, it needs to be in a separate VLAN. The voice VLAN can be configured to provide quality of service (QoS), which will ensure that the voice traffic has a higher priority than data traffic.

Configure Router0 as follows:
interface FastEthernet0/0
 no shutdown
interface FastEthernet0/0.10
 encapsulation dot1Q 10
 ip address 192.168.1.1 255.255.255.0
interface FastEthernet0/0.20
 encapsulation dot1Q 20
 ip address 192.168.2.1 255.255.255.0

The show interfaces trunk command displays the ports that are trunk ports, the trunking mode, the encapsulation type, the trunk status, the native VLAN, and the allowed VLANs on the link.

Legacy inter-VLAN routing requires that each VLAN be assigned to a different physical router interface. So, if there are 5 VLANs to be configured, it is necessary to have 5 physical router interfaces, one for each VLAN.​

Enabling DTP on both switches simply allows negotiation of trunking. The “Negotiation of Trunking” line in the graphic shows that DTP is already enabled. The graphic also shows how the native VLAN is 1, and the default VLAN for any Cisco switch is 1. The graphic shows the PCs are to be in VLAN 20.

The administrator can use the encapsulation command to specify the encapsulation type (IEEE 802.1Q or ISL), the VLAN ID, and optionally the native VLAN.

The steps to configure inter-VLAN routing must be completed in a specific order. Before configuring an IP address on a subinterface, the encapsulation dot1q VLAN_id command must be specified first.

Normal range VLANs are stored in a file called vlan.dat and located in the flash memory.