Tema 2 - VLANs

VLAN technology defines that VLAN membership is made:

• For each workstation.

• For each frame sent.

• For each switch port.

• For each network protocol.

Using VLAN tagging causes:

• A reduction of the load on the edge switches.

• An increased load on the core switches.

• A reduction of the load on the core switches.

• A reduction in load on all switches.

The use of VLANs in trunk links means that:

• The binding between a frame and a particular VLAN is lost.

• It is mandatory to label all the frames that pass through the Trunk.

• The trunk link has to accept frames from all possible VLANs.

• None of the above.

The main advantage of creating VLANs based on MAC addresses over VLANs based on switch ports is that:

• Station mobility is supported.

• The level of security is much higher.

• It is easier to change a station to another VLAN.

• All of the above.

The IEEE 802.1Q standard defines:

• How to modify the Ethernet header to include labels.

• How to indicate the belonging of a frame to a VLAN.

• That the new maximum size of an Ethernet frame becomes 1522 bytes.

• All of the above.

A layer 3 switch is one that:

• Has exactly 2 switches at the lower levels in the Fat Tree topology.

• Offers level 3 security.

• Is also capable of performing router functions.

• None of the above.

The number of different VLANs that can be created when using the 802.1Q standard is:

• 1024

• 2046

• 4094

• 8190

The switch that offers the most flexibility in terms of configuration options and hardware modularity is known as:

• Unmanaged switch.

• Managed switch.

• Smart-managed switch.

• Super modular switch.

The Provider Bridge technique (Q in Q) consists of:

• Replacing the client VLAN tag with a service VLAN.

• Adding an additional tag with the service VLAN.

• Encapsulating the original frame in the data field of a new Ethernet frame.

• None of the above.