Which two network protocols does Cisco NX-OS iPXE support? (Choose two.)

Question

Options

• AIPv6
• BSFTP
• CSSH
• DIPv4
• EUNFS

• A
  90% (45)
• B
  2% (1)
• D
  2% (1)
• E
  6% (3)

Explanation

Note: The listed answer appears incomplete - for a "choose two" question, both A (IPv6) and D (IPv4) are correct. Cisco NX-OS iPXE supports both IPv4 and IPv6 as its underlying network-layer protocols, enabling network boot operations over either addressing scheme.

Why the distractors are wrong:

• B (SFTP) and C (SSH) are application/transport-layer protocols, not the network-layer protocols iPXE itself operates over - iPXE uses HTTP/TFTP for file transfer, not SFTP or SSH.
• E (UNFS) is a fabricated option; no standard protocol by that name exists in this context (you may be thinking of NFS, which iPXE also doesn't use natively).

Memory tip: Think of iPXE as a "boot-over-network" tool that needs an IP address to function - so it naturally rides on the two IP versions: IPv4 and IPv6. Any protocol that requires a full OS (like SSH or SFTP) can't be used before the OS boots, which is exactly when iPXE runs.

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