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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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Why is an OC－3 2F－BLSR not feasible?()
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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Which option describes the incorrect usage of the Label Distribution method？（）A
LDP is primarily used in internal networks of MPLS-VPN providers.B
MP-BGP is used for label distribution for VPN customer routes.C
Directed LDP is used for label distribution in L2-VPN Attachement Circuits.D
MP-BGP is used for label distribution in MPLS Traffic Engineered networks.
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单选题How is UPSR and BLSR traffic rerouted during a protection switch when a complete fiber cable cut occurs?（）A
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Traffic is switched from the far side of the failure, allowing handshaking to occur.C
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单选题Why is an OC-3 2F-BLSR not feasible?（）A
Switch times would exceed 50 ms for an OC-3 BLSR ring.B
An equal amount of working and protect bandwidth is required.C
DCC bandwidth is not large enough to handle K1/K2 processing.D
There is not enough bandwidth in an OC-3 ring to justify BLSR protection.
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单选题What is used to segment larger networks into smaller networks?（）A
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AS numbers are used by BGP （Border Gateway protocol ） to exchange IP routing information with neighboring ASC
In the internet， an Autonomous System （AS） is a collection of IP networks and routers under the controlD
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单选题How do you define the authentication method that will be used with AAA？（）A
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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 three advantages of VLANs?（）AVLANs establish broadcast domains in switched networks.BVLANs utilize packet filtering to enhance network security.CVLANs provide a method of conserving IP addresses in large networks.DVLANs provide a low-latency internet working alternative to routed networks.EVLANs allow access to network services based on department, not physical location.FVLANs can greatly simplify adding, moving, or changing hosts on the network.
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单选题What is the purpose of a network mask?（）A
It is used in conjunction with the wildcard mask to determine the number of hosts on a networkB
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It is used to differentiate a network as a classful network or a classless network
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