How are IP multicast IGMP entries synchronized between vPC peers？（）

A .  The L2 multicast frames are encapsulated in an OTV packet using the configured control-group multicast address for transport B .  The L2 multicast frames are dropped because multicast cannot be carried across the overlay  C .  The L2 multicast frames are encapsulated in an OTV packet using the configured data-group multicast address for transport D .  The L2 multicast frames are forwarded natively across the overlay based on their multicast ID

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 IANA F . The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in  purpose to RFC 1918 private unicast addresses.

A . 169.254.23.59 B . 223.254.255.254 C . 225.1.1.1 D . 227.43.34.2 E . 238.3.3.3 F . 249.1.2.3

A . a single host B . a subset of hosts C . all hosts sequentially D . all hosts simultaneously

A .  no congestion avoidance B .  not for bandwidth intensive applications C .  no guaranteed delivery mechanism D .  source sends multiple data streams out each interface

A .  1 B .  25 C .  50 D .  255

A . 00-00-0c-c0-05-0a B . 00-00-0c-cl-05-0a C . 01-00-5e-00-00-0c D . 01-00-5e-41-05-0a E . 00-00-0c-01-00-5e F . 01-00-5e-cl-05-0a

A . IGMP B . IGMP snooping C . PIM D . CGMP E . static assignment F . CDP

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.

A . PIM sparse - dense mode and PIM dense mode require an RP on the network. B . PIM sparse mode and PIM dense mode require an RP on the network. C . PIM sparse mode interfaces are always added to the multicast routing table in a router. D . PIM sparse mode and PIM sparse - dense mode require an RP on the network. E . PIM dense mode interfaces are always added to the multicast routing table in a router. F . PIM sparse - dense mode acts as PIM dense mode if an RP is not known.

A . 232.0.0.0/8 B . 239.0.0.0/8 C . 232.0.0.0/4 D . FF3x：：/32 E . FF2x：：/32 F . FF3x：：/16

A . 1 B . 25 C . 50 D . 255

A . it is not used in multicast B . it determines the virtual address group for a multicast destination C . it dynamically registers individual hosts in a multicast group on a specific LAN D . it is used on WAN connections to determine the maximum bandwidth of a connection E . it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow

A .  a single host B .  a subset of hosts C .  all hosts sequentially D .  all hosts simultaneously

A . Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3 B . 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 her C . 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 D . Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers E . The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses F . Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA

A . passed by the AP to its connected switch and then forwarded directly to the connected router，which creates an MGID table entry B . passed by the AP to the WLAN controller and then forwarded to the source PIM-enabled router，which creates an MGID table entry C . passed by the AP to the WLAN controller， which creates an MGID table entry before forwarding to the directly connected PIM-enabled router D . passed by the AP to its connected switch and then forwarded to the rendezvous point router，which creates an MGID table entry

A .  it is not used in multicast B .  it determines the virtual address group for a multicast destination C .  it dynamically registers individual hosts in a multicast group on a specific LAN D .  it is used on WAN connections to determine the maximum bandwidth of a connection E .  it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow

A . to prevent multicast packets from looping B . to prevent PIM packets from looping C . to instruct PIM where to send a （*， G） or （S， G） join message D . to prevent multicast packets from looping and to instruct PIM where to send a （*， G） or （S， G） joinmessage

A . 00-00-0c-c0-05-0a B . 00-00-0c-cl-05-0a C . 01-00-5e-00-00-0c D . 01-00-5e-41-05-0a E . 00-00-0c-01-00-5e F . 01-00-5e-cl-05-0a

A . If a packet is sent to a multicast group address, the multicast frame contains the source multicast address. B . A router does not have to be a member of a multicast group to recei ve multicast data. C . A router must be a member of a multicast group to send to the group. D . A router does not have to be a member of a multicast group to send to the group. E . If a packet is sent to a multicast group address, all members of the multic ast group will receive it. F . A router must be a member of a multicast group to receive multicast data.

A . no congestion avoidance B . not for bandwidth intensive applications C . no guaranteed delivery mechanism D . source sends multiple data streams out each interface

A .  two IP addresses， one for each supervisor B .  three IP addresses， one virtual IP and one physical IP for each supervisor C .  one IP address that is shared among supervisors D .  none—management 0 will use the IP address from the first SVI that is created