单选题What is a Label-Switched Path?（）Aa traffic engineered pathBanother name for a Frame Relay PVCCa bidirectional path through a networkDa unidirectional path through a network
单选题
What is a Label-Switched Path?（）
A
a traffic engineered path
B
another name for a Frame Relay PVC
C
a bidirectional path through a network
D
a unidirectional path through a network
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单选题What is the optimize timer on an RSVP-signaled Label-Switched Path (LSP)?（）AThe time it takes to identify the optimal path for the LSP.BThe interval at which the ingress router recalculates the LSP's path.CThe time the ingress router takes to establish the primary path.DThe maximum number of times the ingress router tries to establish the primary path.
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单选题What is a characteristic of ISL and 802.1q frame tagging in a switched LAN environment?（）AThey are used to find the best path through a network.BThey allow the exchange of filtering tables.CThey specify different implementations of the Spanning-Tree Protocol.DThey allow the exchange of routing tablesEThey provide inter-switch VLAN communication.
单选题Catalyst switches utilize a special technology to identify and prevent topology loops and ensure that data flows properly through a single network path. What is the name of this technology?（）AVTPBISLC802.1QDSTPENone of the above
单选题What is the default function of a secondary path in MPLS?（）Ato act as an equal-cost path to the primary pathBto enable another LSP for load balancingCto act as a diverse backup path to the primary pathDto allow the use of explicit path selection via EROs