单项选择题
Which ERX Edge Router component is responsible for all packet processing and packet forwarding？（）
A.I/O adapter B.line module C.shared memory fabric D.switch route processor
单项选择题 Which CLI command copies a file called 4-0-0.rel from FTP server userpc to the router？（）
单项选择题 Which configuration command enables the router for SNMP？（）
单项选择题 Where does Layer2 de-encapsulation occur on the ERX Edge Router？（）
