單項(xiàng)選擇題For a router connected to two ISPs for redundancy, using IPSLA and static routing, how would you configure uRPF on the uplink interface?()

A.ip verify unicast source reachable-via any
B.ip verify unicast reverse-path
C.ip verify unicast reverse-path loose
D.ip verify unicast reverse-path strict


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1.多項(xiàng)選擇題Voice quality is bad due to high delay and jitter on a link. Which two actions will improve the quality  of voice calls?()

A.Increase the queue size of the voice class.
B.Guarantee bandwidth during congestion to the voice class with a bandwidth command.
C.Increase the tx-ring of the egress interface.
D.Implement LLQ for the voice class.
E.Decrease the rx-ring of the egress interface.
F.Decrease the queue size of the voice class.

2.單項(xiàng)選擇題What action will a BGP route reflector take when it receives a prefix marked with the community attribute NO ADVERTISE from a client peer?()

A.It will advertise the prefix to all other client peers and non-client peers.
B.It will not advertise the prefix to EBGP peers.
C.It will only advertise the prefix to all other IBGP peers.
D.It will not advertise the prefix to any peers.

3.多項(xiàng)選擇題Which two OSPF LSA types are new in OSPF version 3? ()

A.Link
B.NSSA external
C.Network link
D.Intra-area prefix
E.AS domain

4.多項(xiàng)選擇題Which two tunneling techniques support IPv6 multicasting? ()

A.6to4
B.6over4
C.ISATAP
D.6PE
E.GRE

5.多項(xiàng)選擇題Which two options does Cisco PfR use to control the entrance link selection with inbound  optimization?()

A.Prepend extra AS hops to the BGP prefix.
B.Advertise more specific BGP prefixes(longer mask).
C.Add(prepend)one or more communities to the prefix that is advertised by BGP.
D.Have BGP dampen the prefix.

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When a BGP router is not capable of understanding 4-byte AS numbers, it will see 4-byte AS numbers as a special, reserved, 2-byte AS number in the AS path. Which 2-byte AS number is this reserved one?()

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You are the network administrator of a Layer 3 switched network. Users in one VLAN are complaining that access to the server VLAN is very slow from time to time. Traffic in the local VLAN works without any issue, and users in other VLANs do not have any complaint to reach the server VLAN. What is most likely the cause of this issue?()

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