Explain Open Shortest Path First (OSPF) Routing Protocol Flashcards

Can you explain Open Shortest Path First (OSPF) routing protocol? If you are a programming student, there is much that you might learn using the flashcards provided. By going through each, you will get a deeper understanding of this type of routing. Be sure to check out the quizzes that follow so that you may test your knowledge. All the best!

50 cards   |   Total Attempts: 182
  

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Cards In This Set

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What multicast IP address are OSPF hello packets sent to?
IP address 224.0.0.5
The hello message follows the IP packet header, with IP packer protocol type __?
IP packet protocol type 89
What does the OSPF hello message include?
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
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
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
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
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
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
The router sending the Hello with the _ _ _ becomes the DR
Highest OSPF priority
If two or more routers tie with the highest priority setting, the router sending the Hello with the _ _ wins
Highest RID
The routers that creates each _ also has the responsibility to re-flood the _ every #_ minutes (the default), even if no changes occur.
LSA, 30
OSPF uses the term _ _ _ to describe a router that sits in both areas.
Area Border Router
If the hello interval is configured, IOS automatically reconfigures the interface's dead interval to be # times the Hello Interval
Four
Enters OSPF configuration mode for the listed process
Router ospf "process-id"

Ex: router ospf 1