Which two functions are performed by the core layer in a three-tier architecture? (Choose two.)
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A. B. C. D. E.AC.
https://www.mcmcse.com/cisco/guides/hierarchical_model.shtmlA three-tier architecture is a network design that divides the network into three logical layers, including the access layer, distribution layer, and core layer. The core layer is the backbone of the network and is responsible for providing fast and uninterrupted forwarding of traffic across the network. It connects the distribution layer switches and provides high-speed connectivity between them.
The two functions performed by the core layer in a three-tier architecture are:
Provide uninterrupted forwarding service: The core layer is designed to provide high-speed switching and forwarding of data packets between distribution layer switches without any delay or interruption. It is responsible for ensuring that packets are delivered to their destination as quickly as possible.
Ensure timely data transfer between layers: The core layer is responsible for providing a high-speed data transfer between the distribution layer switches. It ensures that the data is transferred from one switch to another without any delay or congestion, thereby ensuring timely delivery of data to the end-users.
In summary, the core layer is the backbone of the network and performs critical functions that include providing high-speed forwarding and ensuring timely data transfer between the distribution layer switches. It does not inspect packets for malicious activity, provide direct connectivity for end-user devices, or police traffic that is sent to the edge of the network.