AS path
Split horizon
Poison reverse
Unicast RPF check
单选题In a switched LAN network, what is the Spanning-Tree algorithm used for?()A It is used to provide a mechanism for routing updates in switched environments.B It is used to prevent routing loops in networks with redundant routes.C It is used to prevent switching loops in networks with redundant switched routes.D It is used to manage, the addition, deletion, and naming of VLANs across multiple switches.E It is used to segment a network into multiple collision domains.F None of the above.G All of the above are functions of STP.
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单选题Which BGP attribute is used by BGP to prevent routing loops?()A AS - pathB next - hopC MEDD weightE local preferenceF origin
单选题Your MPLS implementation is currently using internal backdoor links. What can you do to minimize the impact of having these links?()Ause BGP as the CE-PE routing protocolBuse OSPF as the CE-PE routing protocolCuse EIGRP as the CE-PE routing protocolDuse the SP to redistribute routes as external routes for OSPF and EIGRPEuse route redistribution at each location to ensure external routes are imported into the IGP
单选题Which mechanism does External BGP use to prevent the formation of routing loops?()A AS pathB Split horizonC Poison reverseD Unicast RPF check
单选题What is the purpose of the spanning-tree algorithm in a switched LAN?()A To provide a monitoring mechanism for networks in switched environments.B To manage VLANs across multiple switches.C To prevent switching loops in networks with redundant switched paths.D To segment a network into multiple collision domains.E To prevent routing loops in networks.
单选题Which routing table stores IPv4 unicast routes and is used by multicast routing protocols to prevent loops?()A inet.0B inet.1C inet.2D inet.3
单选题For which routes does LDP advertise a label binding?()A all routes in the routing tableB only the IGP and BGP routes in the routing tableC only the BGP routes in the routing tableD only the IGP routes in the routing table