What will happen after changing the configuration register to 0x2142 and rebooting the router? (Choose two.)
A.
The IOS image will be ignored.
B.
The router wiII prompt to enter initial configuration mode.
C.
The router will boot to ROM.
D.
Any configuration entries in NVRAM will be ignored.
E.
The configuration in flash memory will be booted.
B,D
The router bypasses the startup configuration stored in NVRAM during its boot sequence so the router will enter initial configuration mode. This feature is normally used during a password recovery procedure.