SSCP: Systems Security Certified PractitionerDemo

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QuestionQ823

Network and Communications Security

At which ISO/OSI layer do switches primarily function?

Note that this refers to a plain vanilla switch, not one of the smart switches available on the market today.

  • A Physical layer
  • B Network layer
  • C Data link layer
  • D Session layer
Explanation

A conventional switch learns and uses MAC addresses to forward Ethernet frames within a local network. MAC-based frame switching is a Data Link layer (Layer 2) function.

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