Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?

Last Updated: Jun 8, 2023
IT Exam Items Repository › Category: CCNA 4 v4 › Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?

Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?

  • ATM
  • Frame Relay
  • HDLC
  • PPP
  • SDLC

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