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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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更多 “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.” 相关考题
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考题
What is used to segment larger networks into smaller networks?()
A.supernet masksB.subnet masksC.wildcard masksD.route filtering
考题
What is the correct relative switching priority in a BLSR ring (higher to lower)?()
A. signal fail, signal degrade, manual switchB. signal degrade, signal fail, manual switchC. protection lockout, manual switch, path AISD. forced switch, manual switch, signal degradeE. protection lockout, manual switch, forced switch
考题
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.
考题
Click the Exhibit button. A customer has several interconnected core rings (see exhibit). They want to create several irtual rings?utilizing their OC-192 backbone (nodes 1,2,3,4). What should you recommend?（）A. PPMN with BLSR ringsB. PPMN with UPSR ringsC. 1:N protection on all core circuitsD. multi-ring interconnect with BLSR rings
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What is the correct relative switching priority in a BLSR ring (higher to lower)?（）A、signal fail, signal degrade, manual switchB、signal degrade, signal fail, manual switchC、protection lockout, manual switch, path AISD、forced switch, manual switch, signal degradeE、protection lockout, manual switch, forced switch
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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、It is used to define which parts of the IP address are allocated to host addresses and network prefixesC、It is used to hide subnets from external networks by masking the subnets with NATD、It is used to differentiate a network as a classful network or a classless network
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How do you define the authentication method that will be used with AAA？（）A、With the method aaa commandB、With the method commandC、With a method listD、With a method statement
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考题
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.
考题
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.
考题
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.
考题
单选题How is UPSR and BLSR traffic rerouted during a protection switch when a complete fiber cable cut occurs?（）A
Traffic is switched from the first node receiving the AIS indication.B
Traffic is switched from the far side of the failure, allowing handshaking to occur.C
UPSR traffic is switched from the terminating node, BLSR traffic is rerouted from the originating node in the ring.D
UPSR traffic is switched from the terminating node, circuit by circuit. BLSR traffic is rerouted from the last reachable node in the ring.
考题
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.
考题
单选题What is used to segment larger networks into smaller networks?（）A
supernet masksB
subnet masksC
wildcard masksD
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考题
单选题A cluster administrator has defined a custom error notification method that will email and administrator when a temp error is detected on an individual hdisk. What method should be used to test this functionality？（）A
sendmail -biB
yes /dev/kmemC
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reducevg vgname hdisk#
考题
单选题What is true regarding Autonomous Systems （AS ）？（）A
AS numbers are assigned by the IANAB
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
All of the Above
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考题
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考题
单选题How do you define the authentication method that will be used with AAA？（）A
With the method aaa commandB
With the method commandC
With a method listD
With a method statement
考题
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
It is used to define which parts of the IP address are allocated to host addresses and network prefixesC
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It is used to differentiate a network as a classful network or a classless network
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