Which of the following describes a VLAN?
A . It connects multiple networks and routes data packets.
B . It is a logical broadcast domain across physical subnets.
C . It is a subnetwork that reveals a company’s externally facing resources to the public network.
D . It allows different network protocols to communicate between different network segments.
Answer: B
Explanation:
VLAN (Virtual Local Network) is a logically separate IP subnetwork which allow multiple IP networks and subnets to exist on the same-switched network.
VLAN is a logical broadcast domain that can span multiple physical LAN segments. It is a modern way administrators configure switches into virtual local-area networks (VLANs) to improve network performance by separating large Layer 2 broadcast domains into smaller ones.