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350-601 · Question #460

An engineer must perform a POAP deployment of a Cisco Nexus 9000 Series Switch. The switch must automatically receive its software image and configuration file upon power-on. Also, only UDP is permitt

The correct answer is A. Enable option 67. Define TFTP transfer protocol. For a Cisco Nexus 9000 Series Switch POAP deployment requiring image and configuration transfer over UDP, DHCP Option 67 must be enabled to specify the bootfile name, and TFTP should be used as the transfer protocol.

Automation

Question

An engineer must perform a POAP deployment of a Cisco Nexus 9000 Series Switch. The switch must automatically receive its software image and configuration file upon power-on. Also, only UDP is permitted between the Nexus 9000 switch and the server that hosts the Cisco NX-OS system images. Which set of actions completes the configuration?

Options

  • AEnable option 67. Define TFTP transfer protocol
  • BEnable option 43. Define HTTP transfer protocol.
  • CEnable option 46. Define TFTP transfer protocol
  • DEnable option 35. Define HTTP transfer protocol.

How the community answered

(49 responses)
  • A
    78% (38)
  • B
    4% (2)
  • C
    12% (6)
  • D
    6% (3)

Why each option

For a Cisco Nexus 9000 Series Switch POAP deployment requiring image and configuration transfer over UDP, DHCP Option 67 must be enabled to specify the bootfile name, and TFTP should be used as the transfer protocol.

AEnable option 67. Define TFTP transfer protocolCorrect

Cisco Nexus POAP leverages DHCP Option 67 to inform the switch of the bootfile name (typically a POAP script or NX-OS image). TFTP (Trivial File Transfer Protocol) is a UDP-based protocol commonly used for this initial transfer, satisfying the requirement for UDP-only communication.

BEnable option 43. Define HTTP transfer protocol.

DHCP Option 43 is for vendor-specific information and often points to an HTTP server, but HTTP uses TCP, which violates the 'only UDP is permitted' requirement.

CEnable option 46. Define TFTP transfer protocol
DEnable option 35. Define HTTP transfer protocol.

Concept tested: Cisco Nexus POAP DHCP options and TFTP

Source: https://www.cisco.com/c/en/us/td/docs/dcn/nx-os/nexus9000/102x/fundamentals/poap/cisco-nexus-9000-series-nx-os-fundamentals-configuration-guide-102x/poap.html

Topics

#POAP#Cisco Nexus 9000#DHCP Option 67#TFTP Protocol

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