CompTIA Network+ (N10-009)Network OperationsMedium
A network administrator is creating documentation that shows VLAN assignments, IP subnets, and routing paths between sites, but does not include physical cable runs or rack locations. Which type of diagram is being created?
- AWiring schematic
- BPhysical network diagram
- CLogical network diagram
- DRack diagram
Show answer & explanationAnswer & explanation
Correct answer: C. Logical network diagram
A logical network diagram illustrates how data flows and how devices are logically connected—showing IP addressing, VLANs, and routing—independent of physical cabling or hardware placement.
Why the other options are wrong
- A. A wiring schematic documents physical cable paths and connectors, not IP logic.
- B. A physical diagram shows actual cabling, ports, and equipment placement, not logical addressing.
- D. A rack diagram details physical equipment placement within server racks.
Logical vs Physical Diagrams
Logical diagrams show IP addressing, VLANs, and data flow; physical diagrams show actual cabling, device locations, and hardware layout.
- Logical = 'how data moves'
- Physical = 'where hardware sits'
- Both are essential parts of network documentation
Memory trick: Logical = Layout of Logic; Physical = Placement of Ports.