Multicast TTL 阈值不影响单播数据包。
Multicast TTL 阈值不影响单播数据包。
相关考题：
The IP multicast global configuration command ip pirn send － rp － announce IoopbackO scope 31 group － list 5 issued on multicast router RTA. What are the two results? () A. RTA will forward RP announcements provided they are within the scope of 31.B. RTA will originate RP announcements with TTL s et to 31.C. RTA will originate RP announcements for multicast groups that match access - list 5.D. RTA will drop all RP announcements it receives if the TTL field is greater than 31.
Which three IP multicast address related statements are true?() A.Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3B.Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget herC.Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1D.Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routersE.The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addressesF.Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA
在下列关于IP数据包中TTL字段的描述中,哪一项是不正确的()。 A.TTL（TimeToLivE.指的是IP数据包在网络上的生存期B.TTL值的特性常被用来进行网络路由探测C.无论何种操作系统，它们在设计的时候都满足RFC文档的规定，将发送出去的网络数据包中的TTL都设置成一样的值D.IP数据包中的TTL值每经过网络上的一个路由器或者网关时，都会被减去一，直到该数据包顺利发送至接收方或者变成零为止
通常以太网交换机在下列哪种情况下会对接收到的数据帧进行泛洪flocd处理() A.广播帧Broadcast frameB.组播帧Multicast frameC.已知单播帧Known unicastD.未知单播帧Unknown unicast
VRRP组中Master路由器所发出的VRRPHello报文属于()。 A.广播（Broadcast）B.组播（Multicast）C.单播（Unicast）D.细播（slivercast）
运行TRACERT命令的系统向所跟踪的目的系统发送ICMP数据包，这些数据包的TTL字段从（）开始递增，中间每经过一个路由器，该路由器就把TTL字段减（），如果TTL为（），则丢弃该数据包。
Which three IP multicast address related statements are true？ （Choose three.） （） A、Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live （TTL） greater than 1.B、Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers.C、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and IGMPv3.D、Because they would map to overlapping IP multicast MAC addresses， multicast addresses 224.0.1.1 and 238.1.1.1 could not be used together.E、Multicast address 224.0.1.1 has been reserved for the Network Time Protocol （NTP） by the IANAF、The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses.
下面关于IP报文头部中TTL字段的说法正确的是（）。A、TTL定义了源主机可以发送数据包的数量B、TTL定义了源主机可以发送数据包的时间间隔C、IP报文每经过一台路由器时，其TTL值会被减一D、IP报文每经过一台路由器时，其TTL值会被加一
通常以太网交换机在下列哪种情况下会对接收到的数据帧进行泛洪flocd处理（）A、广播帧Broadcast frameB、组播帧Multicast frameC、已知单播帧Known unicastD、未知单播帧Unknown unicast
Which three IP multicast related statements are true？ （Choose three.） （）A、 Multicast addresses 224.0.1.0 through 238.255.255.255 are called globally scoped addresses. They are used to multicast data between organizations and across the InternetB、 The multicast address 224.0.0.1 is a globally scoped address that has been reserved for the Network Time Protocol （NTP） by the IANAC、 Multicast addresses 239.0.0.0 through 239.255.255.255 are called limited scope addresses. They are constrained to a local group or organizationD、 Multicast addresses 224.0.0.5 and 224.0.0.6 are limited scoped addresses that have been reserved for OSPFE、 Multicast addresses 224.0.0.0 through 224.0.0.255 are used for network protocols on local LAN segments. Because they are always transmitted with a Time to Live （TTL） of 1， they are never forwarded by a router
单选题下面关于IP报文头部中TTL字段的说法正确的是（）。ATTL定义了源主机可以发送数据包的数量BTTL定义了源主机可以发送数据包的时间间隔CIP报文每经过一台路由器时，其TTL值会被减一DIP报文每经过一台路由器时，其TTL值会被加一
多选题Which three IP multicast address related statements are true?（）AMulticast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3BBecause they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget herCMulticast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1DMulticast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routersEThe a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addressesFMulticast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA
单选题VRRP组中Master路由器所发出的VRRPHello报文属于（）。A广播（Broadcast）B组播（Multicast）C单播（Unicast）D细播（slivercast）