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What multicast IP address are OSPF hello packets sent to?
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IP address 224.0.0.5
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The hello message follows the IP packet header, with IP packer protocol type __?
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IP packet protocol type 89
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What does the OSPF hello message include?
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The hello message includes the:
Sending routers RID Area ID Hello Interval Dead Interval Router priority RID of DR RID of BDR |
What affects the calculation of OSPF routes when all possible default values are used?
Is it bandwidth, delay, load, reliability, MTU, hop count? |
Bandwidth
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WOTF OSPF neighbor states is expected when the exchange of topology information is complete so that neighboring routers have the same LSDB?
a. Two-way b. Full c. Exchange d. Loading |
Full
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A known neighbor is no longer reachable often because of an underlying interface failure.
Which OSPF neighbor state is this? A. Down B. Init C.Two-way D. Full |
Down
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An interim state in which a hello has been heard from the neighbor, but that hello does not list the router's RID as having been seen yet?
Which OSPF neighbor state is this? A. Down B. Init C.Two-way D. Full |
Init
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The neighbor has sent a hello that lists the local router's ROD om the list of seen routers, also implying that neighbor verification checks all passed.
Which OSPF neighbor state is this? A. Down B. Init C.Two-way D. Full |
Two-Way
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Both routers know the exact same LSDB details and are fully adjacent
Which OSPF neighbor state is this? A. Down B. Init C.Two-way D. Full |
Full
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The router sending the Hello with the _ _ _ becomes the DR
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Highest OSPF priority
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If two or more routers tie with the highest priority setting, the router sending the Hello with the _ _ wins
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Highest RID
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The routers that creates each _ also has the responsibility to re-flood the _ every #_ minutes (the default), even if no changes occur.
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LSA, 30
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OSPF uses the term _ _ _ to describe a router that sits in both areas.
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Area Border Router
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If the hello interval is configured, IOS automatically reconfigures the interface's dead interval to be # times the Hello Interval
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Four
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Enters OSPF configuration mode for the listed process
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Router ospf "process-id"
Ex: router ospf 1 |