Which option are L4-L7 devices registered as on a Cisco APIC?

Question

Options

• Aone virtual device
• Ba cluster
• Cone physical device
• Dmore virtual devices

• A
  3% (1)
• B
  95% (35)
• D
  3% (1)

Explanation

In Cisco ACI, L4-L7 devices are always registered on the APIC as a cluster, even if only a single device exists - this logical abstraction allows the APIC to manage service chaining, redundancy, and scaling consistently regardless of the underlying hardware or virtualization.

Why the distractors are wrong:

• A (one virtual device): Not all L4-L7 devices are virtual; physical appliances like firewalls and load balancers are equally supported, so "virtual" is too restrictive.
• C (one physical device): Similarly, "physical" excludes virtual appliances, and the single-device framing misses that APIC always uses the cluster model as its abstraction unit.
• D (more virtual devices): "More" implies plurality and "virtual" again excludes physical - neither constraint matches the APIC's actual registration model.

Memory tip: Think of APIC as always dealing in clusters for L4-L7 - even a lone device is a "cluster of one." If you remember that APIC prefers logical groupings over individual device types, B is the only answer that fits both physical and virtual devices in any quantity.

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