【单选题】In PIM-SM what control plane signaling must a multicast source perform before it begins to send multicasttraffic to a group?()
A.
The source must send a PIM Register message to the rendezvous point (RP).
B.
The source must first join the multicast group using IGMP before sending.
C.
The source must perform a Request to Send (RTS) and Clear to Send (CTS) handshake with the PIM designated router (DR).
D.
No control plane signaling needs to be performed; the source can simply begin sending on the local subnet.
【简答题】With these facts before you,we feel sure that you will send us your check by return mail.Thank you.
【单选题】患者男,32岁,教师,江西上饶人,因“发热10+d”来诊。10d前患者开始出现发热,体温37.2~39.6℃,伴畏寒、乏力、头晕,热退后头晕消失。在当地医院应用头孢曲松、利巴韦林(病毒唑)治疗无效。有乙型病毒性肝炎肝硬化病史1年余,拉米夫定治疗6个月。近1年余未曾出外旅游。查体:T38.3℃;皮肤、巩膜中度黄染,口腔未见白斑,颈软,未见肝掌、蜘蛛痣,全身淋巴结未及肿大;心、肺未见异常;腹软,无压痛...
【单选题】交流发电机不充电故障原因,下列说法错误的是
【单选题】Parents need to take many things into _____ before deciding whether they should send their children to study abroad.
【单选题】患者男,32岁,教师,江西上饶人,因“发热10+d”来诊。10d前患者开始出现发热,体温37.2~39.6℃,伴畏寒、乏力、头晕,热退后头晕消失。在当地医院应用头孢曲松、利巴韦林(病毒唑)治疗无效。有乙型病毒性肝炎肝硬化病史1年余,拉米夫定治疗6个月。近1年余未曾出外旅游。查体:T38.3℃;皮肤、巩膜中度黄染,口腔未见白斑,颈软,未见肝掌、蜘蛛痣,全身淋巴结未及肿大;心、肺未见异常;腹软,无压痛...
【简答题】It was essential that the application forms should (send) ______ back before the deadline.