N10-009 Network Operations Practice Question
A network administrator is preparing documentation for a new branch office. The administrator needs a diagram that shows the logical relationships between network devices and how VLANs are trunked over inter-switch links. Which type of document should be created?
⚠ Common exam trap
Test-takers frequently confuse 'physical topology' with 'logical topology,' assuming that a physical diagram can show VLAN trunking, but physical diagrams only depict hardware connections, not the logical VLAN paths or trunking relationships.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Logical topology diagram
A logical topology diagram is the correct choice because it illustrates how devices communicate across the network, including VLAN assignments and trunk links (e.g., 802.1Q tagging) between switches. This diagram abstracts physical locations to show Layer 2 and Layer 3 relationships, such as which VLANs traverse which inter-switch links, making it ideal for documenting VLAN trunking and logical connectivity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Network baseline
Why it's wrong here
A network baseline establishes a reference point for normal network performance metrics, such as bandwidth utilization, latency, error rates, and CPU load on devices. While critical for performance monitoring and troubleshooting, it is a collection of data points over time, not a visual representation of network structure or logical connectivity. It does not provide the architectural details needed to plan or document VLAN trunking and assignments.
When this WOULD be correct
When a question asks for a document that records normal network performance metrics (e.g., bandwidth utilization, latency) to compare against future anomalies, a network baseline is correct.
- ✗
Wiring diagram
Why it's wrong here
A wiring diagram, often more detailed than a general physical topology, specifically focuses on the intricate details of cable runs, termination points, and connections within a structured cabling system. It might show individual wire pairs, connector types, and patch panel layouts. While vital for installation and troubleshooting physical layer issues, it provides no information about the logical configuration of network services, IP addressing, or VLAN trunking.
When this WOULD be correct
A wiring diagram would be correct if the question asked for a document detailing cable runs, patch panel connections, or physical wire routing for a new office installation.
- ✗
Physical topology diagram
Why it's wrong here
A physical topology diagram illustrates the actual geographical or spatial arrangement of network devices, including their physical locations within a building, rack positions, and the physical cabling connections between them. It details cable types, lengths, and termination points, such as patch panels. However, it does not depict logical constructs like IP addresses, VLAN assignments, or the virtual pathways of trunk links, which are independent of physical placement.
When this WOULD be correct
When the question asks for a diagram that shows the physical location of devices, cable runs, and port connections for installation or troubleshooting physical connectivity.
- ✓
Logical topology diagram
Why this is correct
This diagram is crucial for understanding how data flows and how network segments are logically interconnected. It specifically illustrates logical connections, IP addressing schemes, VLAN IDs, subnet masks, routing protocols, and the configuration of trunk links between switches, which are essential for multi-VLAN environments. For a new branch office, this diagram provides the necessary blueprint for configuring network devices to support various services and user groups.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The N10-009 exam frequently reuses these exact scenarios with slightly different constraints.
✓Logical topology diagramCorrect answer▾
Why this is correct
This diagram is crucial for understanding how data flows and how network segments are logically interconnected. It specifically illustrates logical connections, IP addressing schemes, VLAN IDs, subnet masks, routing protocols, and the configuration of trunk links between switches, which are essential for multi-VLAN environments. For a new branch office, this diagram provides the necessary blueprint for configuring network devices to support various services and user groups.
✗Network baselineWrong answer — click to see why▾
Why this is wrong here
A network baseline documents performance metrics over time, not the logical relationships between devices or VLAN trunking.
★ When this WOULD be the correct answer
When a question asks for a document that records normal network performance metrics (e.g., bandwidth utilization, latency) to compare against future anomalies, a network baseline is correct.
Why candidates choose this
Candidates may confuse 'baseline' with 'diagram' or think that documenting VLANs requires a baseline of traffic patterns.
✗Wiring diagramWrong answer — click to see why▾
Why this is wrong here
A wiring diagram shows physical cable paths and connector pinouts, not logical relationships like VLAN trunking between switches.
★ When this WOULD be the correct answer
A wiring diagram would be correct if the question asked for a document detailing cable runs, patch panel connections, or physical wire routing for a new office installation.
Why candidates choose this
Candidates may confuse 'wiring' with 'inter-switch links' and think a wiring diagram includes VLAN trunk information, but wiring diagrams focus on physical cabling, not logical data flow.
✗Physical topology diagramWrong answer — click to see why▾
Why this is wrong here
A physical topology diagram shows the physical layout and connections of cables and devices, not logical relationships like VLAN trunking between switches.
★ When this WOULD be the correct answer
When the question asks for a diagram that shows the physical location of devices, cable runs, and port connections for installation or troubleshooting physical connectivity.
Why candidates choose this
Candidates may confuse physical topology with logical topology, thinking that inter-switch links are physical connections, but the question specifically asks for logical relationships and VLAN trunking.
Analysis generated from the official N10-009blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Visual reference
Go deeper
Related to this question
Learn chapter
Network Documentation and Diagrams
Key term
VLAN
A VLAN (Virtual Local Area Network) is a logical grouping of network devices that behave as if they are on the same physical network segment, regardless of their actual physical location.
Key term
Switch
A switch is a networking device that connects devices on a local area network and uses MAC addresses to forward data only to the intended recipient.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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