Which tool automatically discovers and creates a network map of the target network, showing OSI Layer 2 and Layer 3 connections and tracking network changes for inventory management?

Which tool automatically discovers and creates a network map of the target network, showing OSI Layer 2 and Layer 3 connections and tracking network changes for inventory management?

• A. Network Topology Mapper
• B. network diagram
• C. OpenDoor
• D. Tails

Answer: (B)

Automatically discovering devices and creating a live map of how they connect across Layer 2 and Layer 3 is what a network topology mapping tool does best. Such a tool scans the network, identifies devices (via methods like SNMP, LLDP/CDP, ARP, WMI, SSH), and builds a topology diagram that shows Layer 2 connections (who is directly connected to whom on switches and MAC/VLAN relationships) and Layer 3 paths (routers, subnets, routing). It also tracks changes over time so you can see new devices, removals, or topology shifts for accurate inventory management. This capability is what Network Topology Mapper provides. A network diagram, in contrast, is typically a static, manually created picture and doesn’t automatically discover devices or monitor changes. The other options aren’t standard tools for automated topology discovery and inventory tracking.

Automatically discovering devices and creating a live map of how they connect across Layer 2 and Layer 3 is what a network topology mapping tool does best. Such a tool scans the network, identifies devices (via methods like SNMP, LLDP/CDP, ARP, WMI, SSH), and builds a topology diagram that shows Layer 2 connections (who is directly connected to whom on switches and MAC/VLAN relationships) and Layer 3 paths (routers, subnets, routing). It also tracks changes over time so you can see new devices, removals, or topology shifts for accurate inventory management. This capability is what Network Topology Mapper provides. A network diagram, in contrast, is typically a static, manually created picture and doesn’t automatically discover devices or monitor changes. The other options aren’t standard tools for automated topology discovery and inventory tracking.