单项选择题X 纠错
A.all active AVF routers as the first response is used by the client
B.the AVG router，replying with a different AVF MAC address each time
C.a random AVF router，based on a GLBP seed hash key
D.only the AVG router that received the ARP request first
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单项选择题
A.It works well with a multihomed environment.
B.It will inspect IP packets that are encapsulated in tunnels， such as GRE，LT2P，or PPTP.
C.uRPF is performed within the CEF switching path.
D.There might be a problem with DHCP as Unicast RPF is blocking packets with a 0.0.0.0 sourceaddress.
单项选择题
A. PG-R3 will receive up to four queries for 192.168.1.0/24， one each from PG-R2， PG-R4， PGR5，and PG-R6.
B. PG-R3 will receive up eight queries for 192.168.1.0/24， one from PG-R2， two from PG-R4，three from PG-R5， and four from PG-R6.
C. PG-R3 will receive one query for 192.168.1.0/24， since the remote routers， PG-R4， PG-R5， and PG-R6， are natural stubs in EIGRP.
D. PG-R3 will not receive any queries from PG-R2， because there are no alternate paths for 192.168.1.0/24.
多项选择题
A.Caching allows pacing of MSDP messages.
B.Caching reduces join latency.
C.Caching should not be done by an MSDP speaker.
D.Caching is used to update the BGP MDT address family.
多项选择题
A.IGMPv3 has the ability to include or exclude source lists.
B.All IGMPv3 hosts send reports to destination address 224.0.0.22.
C.Only IGMPv2 reports may contain multiple group state records.
D.All IGMPv3 hosts send reports to destination address 224.0.0.23.
E.IGMPv2 does not support the Leave Group message.
单项选择题
A.ip pim ssm
B.ip pim ssm 232.0.0.0 255.0.0.0
C.ip pim ssm range 50
D.access-list 50 permit 232.0.0.0 15.255.255.255
E.ip pim enable default
单项选择题
A. 10.1.1.1
B. 10.1.1.2
C. 10.1.1.3
D. The default gateway
单项选择题
A.Source-Active Message
B.PIM Join
C.PIM Hello
D.MSDP Register
单项选择题
A.224.0.1.37
B.224.0.1.38
C.224.0.1.39
D.224.0.1.40
单项选择题
A. Take any packet sourced from any address in the 10.2.0.0/16 network or destined to 10.1.14.25 and set the next hop to 10.1.1.1
B. Take any packet sourced from any address in the 10.2.0.0/16 network and destined to 10.1.14.25 and set the next hop to 10.1.1.1
C. Nothing； extended access lists are not allowed in route maps used for policy-based routing
D. Drop any packet sourced from 10.2.0.0/16
多项选择题
A.Register
B.Register-Stop
C.Join/Prune
D.Reject
E.Register-Prune
F.Register-Join
