Create stable, scalable routing designs Flashcards

1
Q

True or false: Link-state routing protocols send periodic routing updates.

A

False. Distance-vector routing protocols send periodic routing updates.

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2
Q

True or false: The path with the lowest cost is preferred

A

True: The lowest cost is preferred.

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3
Q

True or false: A link with a reliability of 200/255 is preferred over a link with a reliability of 10/255.

A

True. The higher value for reliability is preferred

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4
Q

True or false: A link with a load of 200/255 is preferred over a link with a load of 10/255

A

False. The link with the lower load is preferred

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5
Q

On a router, both EIGRP and OSPF have internal routes to 198.168.10.0/24. Which route is injected into the routing table?

A

EIGRP Has an AD of 90

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6
Q

On a router, EIGRP has a route to the destination with a prefix of /28, and OSPF has a route to the destination with a prefix of /30. Which is used to reach the destination?

A

OSPF due to a more specific match ( longest Prefix )

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7
Q

Which of the following is the best measurement of an interface’s reliability and load?

a. Reliability 255/255, load 1/255
b. Reliability 255/255, load 255/255
c. Reliability 1/255, load 1/255
d. Reliability 1/255, load 255/255

A

A: Reliability 255/255, load 1/255

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8
Q

Which routing protocols permit an explicit hierarchical topology? (Choose two.)

a.BGP
b.EIGRP
c.IS-IS
d.RIP
e.OSPF

A

c.IS-IS
e.OSPF

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9
Q

What routing protocol parameter is concerned with how long a packet takes to travel from one end to another in an internetwork?

A

Delay

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10
Q

Match each loop-prevention technique (numerals) with its description (letters).

i. Split horizon
ii. Poison reverse
iii. Triggered updates
iv. Counting to infinity
a. Sends an infinite metric from which the route was learned
b. Drops a packet when the hop count limit is reached
c. Suppresses a route announcement from which the route was learned
d. Sends a route update when a route change

A

i= C, ii = A, iii = D, iv = B

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11
Q

Which statements are true for IGPs and EGPs? (Choose two.)
a. IGPs can be substituted with static routing.
b. IGPs are better at finding the fastest paths across the network.
c. IGPs must converge quickly, but EGPs do not have to.
d. IGPs are for inter-autonomous system connections, and EGPs are used for intra autonomous system connections.

A

B and C. IGPs converge faster than EGPs

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12
Q

How is convergence related to routing information?
a. The speed of convergence affects the frequency of routing updates.
b. The faster the convergence, the less consistent routing information is produced.
c. The faster the convergence, the more consistent routing information is produced.
d. There is no relationship between convergence and routing information consistency

A

C. Faster routing convergence means more accurate information.

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