单项选择题What is true about Unicast RPF in strict mode?()

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.


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1.单项选择题

On the basis of the network provided in the exhibit, all routers are configured to run EIGRP on all links. If the link between PG-R1 and PG-R2 fails, what is the maximum number of queries PG-R3 will receive for 192.168.1.0/24, assuming that all the packets sent during convergence are transmitted once (there are no dropped or retransmitted packets)?()

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.

2.多项选择题Which two statements about SA caching are true?()

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.

3.多项选择题Which two are differences between IGMPv2 and IGMPv3 reports?()

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.

4.单项选择题Which command is used to enable SSM with the range 232.0.0.0 - 255.0.0.0?()

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

7.单项选择题Which multicast address is reserved for cisco-rp-discovery?()

A.224.0.1.37
B.224.0.1.38
C.224.0.1.39
D.224.0.1.40

8.单项选择题

Based on the exhibit presented. What will be the objective of this route map when applied to traffic passing through a router?()

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

9.多项选择题Which three message types are valid PIMv2 message types?()

A.Register
B.Register-Stop
C.Join/Prune
D.Reject
E.Register-Prune
F.Register-Join

10.单项选择题What is the correct command to set the router ID for an OSPFv3 process?()

A.router-id 1.2.3.4
B.router-id 2011::1
C.router-id Loopback0
D.router-id FF02::5

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