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How does route poisoning work with holddown timers to prevent routing loops?()
A. Information learned from one source is not distributed back to that source.
B. Routing updates from the poisoned source are ignored until a holddown timer expires.
C. Failed routes are advertised with infinite metrics.
D. New routing updates are ignored until the network has converged.
E. A route is marked as unavailable when its time-to-live is exceeded.
参考答案
更多 “ How does route poisoning work with holddown timers to prevent routing loops?() A. Information learned from one source is not distributed back to that source.B. Routing updates from the poisoned source are ignored until a holddown timer expires.C. Failed routes are advertised with infinite metrics.D. New routing updates are ignored until the network has converged.E. A route is marked as unavailable when its time-to-live is exceeded. ” 相关考题
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A. inet.0B. inet.1C. inet.2D. inet.3
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When you display the routing table by entering the show route command, what does the* indicate?()
A.The route is a direct route.B.The route was selected as active.C.The route is a default route.D.The route was learned using a dynamic routing protocol.
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Refer to the exhibit. How would you confirm on R1 that load balancing is actually occurring on the default － netw ork (0.0.0.0)?()
A. Use ping and the show ip route command to confirm the timers for each default network resets to 0.B. Load balancing does not occur over default networks; the second route will only be used for failover.C. Use an extended ping al ong with repeated show ip route commands to confirm the gateway of last resort address toggles back and forth.D. Use the traceroute command to an address that is not explicitly in the routing table.
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Which BGP attribute is used by BGP to prevent routing loops?()
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RIP version 2 is being used as the routing protocol within the Testking network.What does RIP version 2 use to prevent routing loops?()
A. CIDRB. Split horizonC. AuthenticationD. Classless maskingE. Hold-down timersF. Multicast routing updatesG. Path Vectoring
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Based on the network shown in the graphic which option contains the potential networking problem and protocol or setting that can to prevent the problem?()
A.Routing loops, hold down timersB.Switching loops, split horizonC.Routing loops, split horizonD.Switching loops, VTPE.Routing loops, STPF.Switching loops, STP
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Which of the following technologies can be used in distance vector routing protocols to prevent routing loops?（）A、Spanning Tree ProtocolB、Shortest path first treeC、Link-state advertisements (LSA)D、Hold-down timersE、Split horizonF、VRP
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RIP version 2 is being used as the routing protocol within the Testking network.What does RIP version 2 use to prevent routing loops?（）A、CIDRB、Split horizonC、AuthenticationD、Classless maskingE、Hold-down timersF、Multicast routing updatesG、Path Vectoring
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Which BGP attribute is used by BGP to prevent routing loops?（）A、AS - pathB、next - hopC、MEDD、weightE、local preferenceF、origin
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How does route poisoning work with holddown timers to prevent routing loops?（）A、Information learned from one source is not distributed back to that source.B、Routing updates from the poisoned source are ignored until a holddown timer expires.C、Failed routes are advertised with infinite metrics.D、New routing updates are ignored until the network has converged.E、A route is marked as unavailable when its time-to-live is exceeded.
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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.
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In BGP routing，what does the rule of synchronization mean？（）A、A BGP router can only advertise an EBGP learned route，provided that the route is an IGP route in the routing table.B、A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route in the routing table.C、A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route that is not in the routing table.D、A BGP router can only advertise an EBGP learned route，provided that the route is a metric of 0 in the BGP table.
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When you display the routing table by entering the show route command, what does the* indicate?（）A、The route is a direct route.B、The route was selected as active.C、The route is a default route.D、The route was learned using a dynamic routing protocol.
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Which mechanism does External BGP use to prevent the formation of routing loops?（）A、AS pathB、Split horizonC、Poison reverseD、Unicast RPF check
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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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A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?（）A、It immediately sends its entire routing table to its neighbors.B、EIGRP sends a Hello packet to the DR to inform it of the route failure.C、It automatically forwards traffic to a fallback default route until a successor route is found.D、It sends queries out to neighbors until a new successor route is found.E、It places the route in holddown until LSA updates inform it of a new route to the network.
考题
单选题When you display the routing table by entering the show route command, what does the* indicate?（）A
The route is a direct route.B
The route was selected as active.C
The route is a default route.D
The route was learned using a dynamic routing protocol.
考题
单选题In BGP routing，what does the rule of synchronization mean？（）A
A BGP router can only advertise an EBGP learned route，provided that the route is an IGP route in the routing table.B
A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route in the routing table.C
A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route that is not in the routing table.D
A BGP router can only advertise an EBGP learned route，provided that the route is a metric of 0 in the BGP table.
考题
单选题Which BGP attribute is used by BGP to prevent routing loops?（）A
AS - pathB
next - hopC
MEDD
weightE
local preferenceF
origin
考题
多选题RIP version 2 is being used as the routing protocol within the Testking network.What does RIP version 2 use to prevent routing loops?（）ACIDRBSplit horizonCAuthenticationDClassless maskingEHold-down timersFMulticast routing updatesGPath Vectoring
考题
单选题A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?（）A
It immediately sends its entire routing table to its neighbors.B
EIGRP sends a Hello packet to the DR to inform it of the route failure.C
It automatically forwards traffic to a fallback default route until a successor route is found.D
It sends queries out to neighbors until a new successor route is found.E
It places the route in holddown until LSA updates inform it of a new route to the network.
考题
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
考题
多选题Which of the following technologies can be used in distance vector routing protocols to prevent routing loops?（）ASpanning Tree ProtocolBShortest path first treeCLink-state advertisements (LSA)DHold-down timersESplit horizonFVRP
考题
单选题How does route poisoning work with holddown timers to prevent routing loops?（）A
Information learned from one source is not distributed back to that source.B
Routing updates from the poisoned source are ignored until a holddown timer expires.C
Failed routes are advertised with infinite metrics.D
New routing updates are ignored until the network has converged.E
A route is marked as unavailable when its time-to-live is exceeded.
考题
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
考题
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.
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