200-301 Cisco Certified Network Associate (CCNA)

Which two functions are performed by the core layer in a three-tier architecture? (Choose two.)

  • A. Provide uninterrupted forwarding service
  • B. Inspect packets for malicious activity
  • C. Ensure timely data transfer between layers
  • D. Provide direct connectivity for end user devices
  • E. Police traffic that is sent to the edge of the network
Answer: Option A, C.
Explanation: 

Reference: https://www.mcmcse.com/cisco/guides/hierarchical_model.shtml

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