Which three statements are typical characteristics of VLAN arrangements? (Choose three.)
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A. B. C. D. E. F.BDE.
Sure, I'd be happy to explain the characteristics of VLAN arrangements!
VLANs, or Virtual Local Area Networks, are a method of logically segmenting a network into multiple broadcast domains. By doing so, VLANs can provide a number of benefits, such as improved network performance, increased security, and simplified network management.
Now, let's take a closer look at the three statements that are typical characteristics of VLAN arrangements:
A. A new switch has no VLANs configured.
This statement is true. When a new switch is installed, it has no VLANs configured by default. In order to create VLANs on the switch, an administrator must configure them manually.
B. Connectivity between VLANs requires a Layer 3 device.
This statement is also true. Because VLANs are separate broadcast domains, devices in one VLAN cannot communicate directly with devices in another VLAN without the help of a Layer 3 device, such as a router or a Layer 3 switch.
C. VLANs typically decrease the number of collision domains.
This statement is also true. When a switch is configured with VLANs, each VLAN is essentially its own separate broadcast domain. This means that broadcasts sent by devices in one VLAN are only seen by other devices in the same VLAN, and not by devices in other VLANs. As a result, the number of collision domains is reduced, which can improve network performance.
D. Each VLAN uses a separate address space.
This statement is false. While each VLAN is a separate broadcast domain, devices in different VLANs can still use the same IP address space. For example, two devices in different VLANs could both have the IP address 192.168.1.1.
E. A switch maintains a separate bridging table for each VLAN.
This statement is true. When a switch is configured with VLANs, it maintains a separate bridging table for each VLAN. This allows the switch to forward frames between devices in the same VLAN, while preventing frames from being forwarded to devices in different VLANs.
F. VLANs cannot span multiple switches.
This statement is false. VLANs can be configured to span multiple switches using a protocol called VLAN Trunking Protocol (VTP), which allows switches to synchronize VLAN information with each other. However, it is important to configure VTP carefully to avoid unintended consequences, such as accidentally deleting or overwriting VLAN information on other switches.