READ Free Dumps For Cisco- 100-101
| Question ID 6458 | Which statements describe the routing protocol OSPF? (Choose three.)
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| Option A | A. It supports VLSM.
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| Option B | It is used to route between autonomous systems
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| Option C | It confines network instability to one area of the network
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| Option D | It increases routing overhead on the network.
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| Option E | It allows extensive control of routing updates.
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| Option F | It is simpler to configure than RIP v2.
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| Correct Answer | ace |
Explanation Routing overhead is the amount of information needed to describe the changes in a dynamic network topology. All routers in an OSPF area have identical copies of the topology database and the topology database of one area is hidden from the rest of the areas to reduce routing overhead because fewer routing updates are sent and smaller routing trees are computed and maintained (allow extensive control of routing updates and confine network instability to one area of the network).
| Question ID 6459 | What is the default administrative distance of OSPF?
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| Option A | 90
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| Option B | 100
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| Option C | 110
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| Option D | 120
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| Correct Answer | c |
Explanation Administrative distance is the feature that routers use in order to select the best path when there are two or more different routes to the same destination from two different routing protocols. Administrative distance defines the reliability of a routing protocol. Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value. Default Distance Value Table This table lists the administrative distance default values of the protocols that Cisco supports: