【答案】:D 12、物联网中常提到的“M2M”概念不包括下面哪一项( )。 (Man to Man) (Man to Machine) (Machine to Man) (Machine to Machine) 【答案】:A 13、将模拟信号转换成数字信号需要经过 (1) 和编码等步骤。 、量化 、解调 、调制 、解调 【答案】:A 14、DNS 区域传输是( ) DNS 服务器 DNS 服务器之间的传输
【答案】:A 15、BGP runs over a reliable transport ( ). This eliminates the need to implement explicit update fragmentation, retransmission, acknowledgement, and ( ). Any authentication scheme used by the transport protocol may be used in addition to BGP's own (请作答此空)mechanisms. The error notification mechanism used in BGP ( )that the transport protocol supports a “graceful” close, ., that all outstanding data will be delivered ( )the connection is closed.