Which three IP multicast address related statements are true？ （Choose three.） （） 

A . 53（DNS） B . 69（TFTP） C . 515（LPR） D . 161（SNMP） E . 49（TACACS）

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 . Default MDT groups are used for PIM control traffic， low-bandwidth sources， and flooding of sparse mode traffic. B . MDTs are built in customer networks C . Data MDT groups are used for high-bandwidth sources to reduce replication to uninterested PEs. D . MDTs are built in provider networks E . The number of MDTs depends on PIM modes of MDT groups.

A . BOOTP B . TFTP C . ARP D . DNS E . proxy - ARP F . FTP

A . only the low-order 23 bits of the MAC address are used to map IP addresses B . only the low-order 24 bits of the MAC address are used to map IP addresses C . only the high-order 23 bits of the MAC address are used to map IP addresses D . only the low-order 23 bits of the IP address are used to map MAC addresses E . the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses F . the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresse

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

A . Browse to the phone using the MAC address of the phone. B . Use HTTPS:// preceding the address of the phone. C . Change web access to read/write for the MAC address of the phone on Cisco Unified Communications Manager. D . Enter the username and password of the phone. E . Ensure that the host is on the same subnet as the remote phone.

A .  Cisco NX-OS Software does not support PIM dense mode. B .  The command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast configuration is possible on the switch. C .  PIM CLI configuration and verification commands are not available until you enable the PIM feature with the feature pim command. D .  Cisco NX-OS Software supports multicast routing per Layer 3 VRF instance. E .  The default PIM operational mode on the Cisco Nexus 7000 switch is SSM.

A . PIM - DM B . PIM - SM C . PIM - RP D . CGMP E . IGMP snooping

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 .  224.21.106.44 B .  224.25.106.44 C .  233.149.106.44 D .  236.25.106.44 E .  239.153.106.44

A . PIM-SSM B . Aggregation multicast C . PIM-Bidirectional D . OOR handling E . integrated multicast F . Multicast NSF

A . Is best suited for applications that are in the one-to-many category. B . SSM uses shortest path trees only. C . The use of SSM is recommended when there are many sources and it is desirable to keep the amount of mroute state in the routers in the network to a. D . There are no RPs to worry about.

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

A . PIM sparse - dense B . Bidir - PIM C . PIM - RP D . PIM - DM E . PIM - SM

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 . 228.10.10.7 B . 229.11.10.7 C . 229.138.10.7 D . 229.138.10.8 E . 228.10.10.8 F . 228.10.138.7

A . The multicast sources must register with the RP to form the multicast distribution tree. B . An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM). C . The mu lticast receivers must register with the RP to form the multicast distribution tree. D . An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM). E . An RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM). F . To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.

A . globally scoped address range B . 239.0.0.X or 239.128.0.X address range C . administratively scoped address range that does not overlap with a link-local MAC address D . any Class D address range E . site-local scoped address range

A . only the low-order 23 bits of the MAC address are used to map IP addresses B . only the low-order 24 bits of the MAC address are used to map IP addresses C . only the high-order 23 bits of the MAC address are used to map IP addresses D . only the low-order 23 bits of the IP address are used to map MAC addresses E . the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses F . the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresse

A . Multicast traffic is sent out on Cisco APs at the highest mandatory data rate. B . Multicast traffic is sent out on Cisco APs at the highest supported data rate. C . On Cisco APs， multicast traffic and beacons are sent out at the same data rates to maintain a common cell size for normal data as well as multicast data. D . If there is more than one mandatory data rate， multicast traffic will be sent at the highest mandatory rate and beacons will be sent at the lowest mandatory rate. E . On Cisco APs， multicast traffic will be sent out at the highest data rate that a client can maintain with the AP.

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 . A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, and finally to all wireless clients of that Cisco WLC, via wireless multicast. B . A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, and finally to all wireless clients of that Cisco WLC, via wireless unicast. C . A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joinedwireless clients via wireless multicast. D . A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joined wireless clients via wireless multicast. E . A packet is delivered to Cisco WLC and forwarded via multicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joinedwireless clients via wireless unicast. F . A packet is delivered to Cisco WLC and forwarded via unicast to all of its associated APs, discarded at APs without SSID_X joined wireless clients, and forwarded at APs with SSID_X joined wireless clients via wireless unicast.