Question: Software-defined networking (SDN) is anapproach to networking that uses software-based controllers orapplication programming interfaces (APIs) to communicate withunderlying hardware infrastructure and direct traffic on anetwork.

Software-defined networking (SDN) is anapproach to networking that uses software-based controllers orapplication programming interfaces (APIs) to communicate withunderlying hardware infrastructure and direct traffic on anetwork.

  1. What played a vital role in the evolution of SDN?
  2. Describe the 3 key layers related with the SDNarchitecture?
  3. How does SDN differ from the traditional networking?
  4. Describe the key advantages of implementing a SDNcapability?
  5. Describe the key challenges related to the implementation ofSDN?
  6. How does SDN improve security?
  7. How does SDN applied in cloud computing?

- Please provide 2-3 sentence per answer.

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