Cisco
210-060 · Question #39
210-060 Question #39: Real Exam Question with Answer & Explanation
The correct answer is A: infrastructure layer. The Cisco Unified Communications architecture defines its own set of component layers distinct from the OSI model. The two UC component layers are the infrastructure layer and the endpoints layer.
Question
Which two layers are Cisco Unified Communications component layers? (Choose two.)
Options
- Ainfrastructure layer
- Bdata link layer
- Cnetwork layer
- Dendpoints layer
- Etransport layer
Explanation
The Cisco Unified Communications architecture defines its own set of component layers distinct from the OSI model. The two UC component layers are the infrastructure layer and the endpoints layer.
Common mistakes.
- B. The data link layer is Layer 2 of the OSI reference model responsible for node-to-node frame delivery, not a named component layer in the Cisco UC architecture.
- C. The network layer is Layer 3 of the OSI reference model responsible for logical addressing and routing, not a defined component layer in the Cisco UC architecture.
- E. The transport layer is Layer 4 of the OSI reference model responsible for end-to-end segment delivery, not a named component layer in the Cisco UC architecture.
Concept tested. Cisco Unified Communications architecture component layers
Reference. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/10x/uc10xsrnd.html
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