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
Which statement about implementing the Cisco IPv6 provider Edge Router over MPLS is true？（）
Which option is not a valid method to assign the lowest-order 64-bit field of an IPv6 unicast address？（）
Which two statements about 10 Gigabit Ethernet （10GE） are true？（）
Which three things are the building blocks of the Cisco VPLS architecture？（）
Which statement is FALSE concerning Concatenation？（）
Which four statements about Ethernet virtual circuit （EVC） infrastructure are true？ （）
Which two statements about Layer 3 MPLS VPN are true？（）
Which three protocols use TLVs to carry attributes？（）
When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）
Which three are advantages of SONET？（）