A.Set top box
B.Diplex filter
C.Local head end
D.Fiber node
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A.Protects signals when a ring switch fails
B.Protects signals when multiple span switches fail
C.Protects pre-emptible traffic from being dropped when a ring switch occurs
D.Protects signals against any combination of link failure in each ring
A.Downstream RS error correction effectiveness is reduced
B.The downstream line rate and throughput remains unchanged， but FEC efficiency is reduced
C.The upstream DSL bandwidth is reduced， since less carriers become available for upstream traffic
D.The downstream DSL bandwidth is increased
A.A higher interleave depth provides more protection from burst of noise on the HFC network
B.Higher interleave depth increase downstream latency
C.Lower interleave depth cause some packet loss on typical HFC networks
D.None ofthe above
A.shutdown [a b]
B.srp shutdown [a b]
C.srp ips request manual-switched [a b]
A.True
B.False
最新試題
When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）
MPLS label mapping on an LSR is displayed by which IOS command？（）
Which two routers support cable access？（）
Which option describes a benefits of IPv6 VPN Provider Edge？（）
Which Modular QoS CLI （MQC） based output queuing method is designed to support multiple trafficclasses including VoIP traffic， mission-critical traffic， interactive traffic， and default class traffic？（）
Which two statements about Layer 3 MPLS VPN are true？（）
Which two statements about 10 Gigabit Ethernet （10GE） are true？（）
Cisco IOS XR Software Multicast Routing Implementation， which three features are supported in IPv6 onCisco CRS router？（）
Which tree of these are types of Ethernet Virtue Connections （EVCs） in the MEF concept？（）
Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider？（）