多项选择题
A.The IOS image will be ignored.
B.The router will 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.
单项选择题 WhichcommandcanbeusedtoverifytheDLCIdestinationaddressinaFrameRelaystaticconfiguration？（）
单项选择题 Whichlayer2protocolencapsulationtypesupportssynchronousandasynchronouscircuisandhasbuilt-insecuritymechanisms？（）
多项选择题 Which two values are used by Spanning Tree Protocol to elect a root bridge?（）