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多选题Which three attributes are carried in a source active message?（）ANLRI informationBIP address of originating RPCaddress of multicast sourceDall active RPs in the local domainEgroup address to which the source is sending

题目
多选题
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

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相似问题和答案

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 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.


参考答案：D, E, F

第2题：

On which options are standard access list based?()

A. source address and subnet mask

B. destination address and wildcard mask

C. source address and wildcard mask

D. destination address and subnet mask


参考答案：C

第3题：

Which three methods of source NAT does the Junos OS support?() (Choose three.)

A. interface-based source NAT

B. source NAT with address shifting

C. source NAT using static source pool

D. interface-based source NAT without PAT

E. source NAT with address shifting and PAT


参考答案：A, B, C

第4题：

Which three methods of source NAT does the Junos OS support?（） (Choose three.)

  • A、interface-based source NAT
  • B、source NAT with address shifting
  • C、source NAT using static source pool
  • D、interface-based source NAT without PAT
  • E、source NAT with address shifting and PAT

正确答案:A,B,C

第5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.

正确答案:D

第6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


参考答案：A, E, F

第7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.

正确答案:D,E,F

第8题：

Which of one the following fields is contained within an IEEE Ethernet frame header?()

A. source and destination MAC address

B. source MAC address and destination network address only

C. source and destination network address only

D. source network address and destination MAC address

E. source and destination MAC address and source and destination network address


参考答案：A

第9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.

正确答案:C,E,F

第10题：

Which statement describes the behavior of source NAT with address shifting？（）

  • A、Source NAT with address shifting translates both the source IP address and the source port of a packet.
  • B、Source NAT with address shifting defines a one-to-one mapping from an original source IP address to a translated source IP address.
  • C、Source NAT with address shifting can translate multiple source IP addresses to the same translated IP address.
  • D、Source NAT with address shifting allows inbound connections to be initiated to the static source pool IP addresses.

正确答案:B

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