Cisco Modeling Labs Simulates Network Topologies
Short answer
D Cisco Modeling Labs creates a network design and simulates the topology using real Cisco images.
Question
Key Takeaways
CML is the simulation environment: it lets you draw a topology and boot virtual Cisco and non-Cisco nodes to test designs before touching production hardware.
Cisco Modeling Labs (CML) is an on-premises tool that builds a network design and simulates the topology with real Cisco device images. Docker runs containers, pyATS runs automated tests, and DevNet Sandbox offers hosted lab environments, so CML is the tool that simulates a topology.
Common mistake: Confusing Cisco DevNet Sandbox with a local simulation tool; the Sandbox provides remote hosted labs, while CML is the tool that runs topology simulation on your own workstation or server.
Expert Analysis
Why the Answer Is Correct
Cisco Modeling Labs is an on-premises network simulation platform that runs on workstations and servers and can rapidly simulate Cisco and non-Cisco networks using real Cisco images. That ability to construct a topology and boot virtual nodes to observe their behaviour is precisely what the question asks for, making CML the correct choice.
Why the Other Options Are Wrong
Docker is a container platform for packaging and running applications, not a network topology simulator, so it cannot model routers and switches. pyATS is a Python-based test-automation framework used to validate network state; it drives tests against devices but does not itself create a simulated topology of virtual Cisco nodes. Cisco DevNet Sandbox provides remote, ready-made lab environments hosted by Cisco, which is different from a tool you use locally to build and simulate your own topology.
Community Comment Notes
Commenters agreed on CML, and the most detailed one described Cisco Modeling Labs as an on-premises simulation tool that runs on workstations and servers and can simulate Cisco and non-Cisco networks using real Cisco images. Other comments simply restated the same answer.
Official Reference
These links open the official vendor documentation in a new tab.
Exam Strategy
Map each tool to its role: CML simulates topologies, pyATS tests them, Docker runs containers, and DevNet Sandbox hosts remote labs. Questions about designing or simulating a topology point to CML.
Frequently Asked Questions
Which tool simulates a network topology with real Cisco images?
What is the difference between CML and Cisco DevNet Sandbox?
Community Votes
100% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 2 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 2
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Lacko9 👍 3 Answered DCisco Modeling Labs is an on-premises network simulation tool that runs on workstations and servers. With Cisco Modeling Labs, you can quickly and easily simulate Cisco and non-Cisco networks, using real Cisco images.
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a161757 👍 1 Answered DD. CML
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