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What protection method is used in 4F BLSR networks?（）
- A、Each fiber has half of its SONET capacity reserved for protection.
- B、Two fibers in the span carry working traffic, while the other two fibers in the span are reserved for protection.
- C、The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.
- D、The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.
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更多 “What protection method is used in 4F BLSR networks?（）A、Each fiber has half of its SONET capacity reserved for protection.B、Two fibers in the span carry working traffic, while the other two fibers in the span are reserved for protection.C、The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.D、The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.” 相关考题
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单选题What protection method is used in 4F BLSR networks?（）A
Each fiber has half of its SONET capacity reserved for protection.B
Two fibers in the span carry working traffic, while the other two fibers in the span are reserved for protection.C
The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.D
The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.
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多选题What are two characteristics of dual-ring interconnect in SONET networks? （）(Choose two.)AIt protects signals against node failures between rings.BIt protects signals against node failure within a single ring.CIt allows for traffic to be preempted when a ring switch occurs.DTraffic can be dropped and continued at interconnecting nodes.EIt protects preemptible traffic from being dropped when a ring switch occurs.
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单选题Due to the internal Fiber Channel over Ethernet architecture of the Cisco UCS ,what does each VSANrequire?（）A
it is carried on only 1 vhba per ucs systemB
it has a qos policy in order to maintain traffic priorityC
there is a supporting vsan to carry the fcoe trafficD
there is a dedicated VLAN to carry the FCoEtraffic
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单选题What is the difference between the Ethanalyzer and the SPAN feature in Cisco NX-OS？（）A
The Ethanalyzer captures control-plane traffic， while SPAN captures all traffic.B
The Ethanalyzer captures all traffic including control-plane traffic， while SPAN captures only the control-plane traffic.C
The Ethanalyzer captures only data traffic， while SPAN captures all traffic.D
The Ethanalyzer captures only control traffic， while SPAN captures data traffic.
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单选题What protection method is used in 4F MS-SPRing networks？（）A
Each fiber has half of its capacity reserved for protection.B
Two fibers carry their full capacities while the other two fibers are reserved for protection.C
The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.D
The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.
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单选题You deployed new fibers in your network to replace copper spans that were too long. While reconnecting the network， you experienced network problems because you reconnected wrong fibers to wrong ports. What could you do to prevent this type of problem in the future， particularly when connecting and reconnecting fiber pairs？ （）A
Only use fiber in pairs.B
Configure root guard on your switches.C
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