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单选题
You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds. What could be the cause of this problem?（）
A
OSPF authentication errors between some of the routers
B
Two routers have the same OSPF router ID
C
Issues with mistuned OSPF timers
D
OSPF LSA pacing issues between some of the routers
E
OSPF neighbor adjacency problems between some of the routers
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更多 “单选题You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds. What could be the cause of this problem?（）A OSPF authentication errors between some of the routersB Two routers have the same OSPF router IDC Issues with mistuned OSPF timersD OSPF LSA pacing issues between some of the routersE OSPF neighbor adjacency problems between some of the routers” 相关考题
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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
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24B
32C
90D
170E
27316F
None of the other alternatives apply
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2B
3C
4D
20E
22F
24
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providing loop-free technology.B
providing HSRP/VRRP.C
managing additional routing peers.D
managing two nodes and configuration.
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The glass core is doped with an Erbium in periodic segments of the fiber.B
Layers of high index ？and low index ？material are deposited on a glass substrate.C
Thin layers of silica glass are placed onto wafers to produce a prism-like effect.D
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PlanningC
DesignD
ImplementationE
OperationF
Optimization
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50B
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512D
1024
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radioC
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考题
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吸入经20%～30%乙醇湿化的氧气D
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考题
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between the radius and the access pointB
between the client’s vlan and the wlseC
between the native vlan and the wlseD
between the client’s vlan and the radius
考题
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1B
90C
95D
0E
5F
170G
255H
None of the other alternatives apply
考题
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营养失调B
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