GCFA · Question #179
Mark works as a Network administrator for SecureEnet Inc. His system runs on Mac OS X. He wants to boot his system from the Network Interface Controller (NIC). Which of the following snag keys will…
The correct answer is A. N. On Mac OS X, pressing and holding the N key at startup instructs the firmware to boot from a NetBoot server using the Network Interface Controller rather than any local drive.
Question
Mark works as a Network administrator for SecureEnet Inc. His system runs on Mac OS X. He wants to boot his system from the Network Interface Controller (NIC). Which of the following snag keys will Mark use to perform the required function?
Options
- AN
- BD
- CC
- DZ
How the community answered
(35 responses)- A80% (28)
- B11% (4)
- C6% (2)
- D3% (1)
Why each option
On Mac OS X, pressing and holding the N key at startup instructs the firmware to boot from a NetBoot server using the Network Interface Controller rather than any local drive.
The N key is the designated Mac startup modifier for network booting; when held immediately after powering on, it signals the EFI/Open Firmware to use the NIC to broadcast a DHCP/NetBoot request and retrieve the boot image from a NetBoot or NetInstall server. This is the only standard Mac snag key that triggers a NIC-based boot. Without this key, the system defaults to the internal startup disk.
Holding D at startup launches Apple Diagnostics (or Apple Hardware Test on older models), not a network boot.
Holding C at startup forces the Mac to boot from an inserted optical disc (CD or DVD), not from the network.
Z is not a recognized Mac startup modifier key and has no documented boot function in Apple firmware.
Concept tested: Mac OS X startup key combinations for network boot
Source: https://support.apple.com/en-us/102603
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