5: Secure Enterprise Network Architecture

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Last updated 8:39 PM on 8/18/26
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5 Terms

1
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What is Network Infrastructure?

The media, appliances, and addressing/forwarding protocols that support basic connectivity.

2
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What are Network Applications?

the services that run on the infrastructure to support business activities, such as processing invoices or sending email.

3
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What are the 7 layers of the OSI model?

  • Layer 1: Physical

  • Layer 2: Data Link

  • Layer 3: Network

  • Layer 4: Transport

  • Layer 5: Session

  • Layer 6: Presentation

  • Layer 7: Application


4
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Routers work at what layer in the OSI model?

Layer 3

5
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Switches work at what layer in the OSI model?

Layer 2