Which statement is true about Foreign Exchange Station （FXS） ports on a router？（） ["The FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office.","The FXS interface connects directly to a standard telephone，fax machine，or similar device and supplies ring，voltage，and dial tone.","The FXS interface connects directly to an IP phone and supplies ring，voltage，and dial tone.","The FXS interface connects directly to ISDN voice channels."]
从发站至到站不需中转换乘的车票是：（） ["直达票","直通票","通票"]
Which two are characteristics of an IPv6 multicast address？（） ["First （most significant ） octet is FF in hex","Starts with a prefix of FE80 to FEBF in hex","Starts with a prefix of FECO to FEFF in hex","Second octet contains a 4-bit multicast scope field","Last 64 bit contains the modified MAC address of the Ethernet interface","Is allocated from the unicast address space"]
Which one of these is a valid HSRP Virtual Mac Address?（） ["0000.0C07.AC15","0000.5E00.01A3","0007.B400.AE01","0007.5E00.B301"]
人力资源具有双重性，是指同时具有生产性和（） ["能动性","再生性","社会性","消费性"]
流线型设计
