Which three IP multicast address related statements are true

第1题：

Which three IP multicast group concepts are true?（）

• 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 receive 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 multicast group will rece ive it.
• F、A router must be a member of a multicast group to receive multicast data.

第2题：

Which two statements are true about overflow pools？（）

• A、Overflow pools do not support PAT
• B、Overflow pools can not use the egress interface IP address for NAT
• C、Overflow pools must use PAT
• D、Overflow pools can contain the egress interface IP address or separate IP addresses

第3题：

第4题：

Which three IP multicast group concepts are true？ （Choose three.） （）

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

第5题：

Which three IP multicast group concepts are true?（）

• 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.

第6题：

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 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.

第7题：

Which three attributes are carried in a source active message?（）

• A、NLRI information
• B、IP address of originating RP
• C、address of multicast source
• D、all active RPs in the local domain
• E、group address to which the source is sending

第8题：

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 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

第9题：

Which three statements about anycast RP are true？ （）

• A、MSDP is running between anycast RPs
• B、Anycast RP provides redundancy and load-sharing capabilities
• C、Multicast BGP is running between anycast RPs
• D、In anycast RP，two or more RPs are configured with the same multicast IP address on loopback interfaces
• E、In anycast RP，two or more RPs are configured with the same unicast IP address on loopback interfaces

第10题：

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 Internet
• B、 The multicast address 224.0.0.1 is a globally scoped address that has been reserved for the Network  Time Protocol （NTP） by the IANA
• C、 Multicast addresses 239.0.0.0 through 239.255.255.255 are called limited scope addresses. They are  constrained to a local group or organization
• D、 Multicast addresses 224.0.0.5 and 224.0.0.6 are limited scoped addresses that have been reserved for  OSPF
• E、 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