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ISDN1 > Ch. 17 Learning IPv4 Routes With OSPFv2 > Flashcards

Ch. 17 Learning IPv4 Routes With OSPFv2 Flashcards

0
Q

______ protocol is a set of messages, rules, and algorithms used by routers for the overall purpose of learning routes

A

Routing

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1
Q

____ add IP routes to their routing table using three methods: connected routes, static routes, and routes learned by using dynamic routing protocols.

A

Routers

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2
Q

____ protocol and ____ protocol refer to a protocol that defines a packet structure and logical addressing, allowing router to forward or route the packets.

A

Routed

Routable

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3
Q

The term _____ refers to a process that occurs when the topology changes- that is when either a router or link fails or comes back up again.

A

Convergence

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4
Q

IGP

A

Interior gateway protocols

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5
Q

EGP

A

Exterior gateway protocols

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6
Q

____ is a routing protocol that was designed and intended for use inside a single autonomous system AS

A

IGP (interior gateway protocols)

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7
Q

AS

A

Autonomous system

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8
Q

____ is a routing protocol that was designed and intended for use between different autonomous (AS) systems

A

EGP

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9
Q

An ___ is a network under the administrative control of a single organization

A

AS (autonomous system)

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10
Q

BGP

A

Border gateway protocol

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11
Q

Today ____ is the only EGP used

A

BGP (border gateway protocol)

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12
Q

ASN

A

Autonomous system number

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13
Q

Each AS can be assigned a number called an _____

A

ASN (autonomous system number)

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14
Q

The routing protocol _____ determines how the routing process does it’s job. It is the logic and processes used by different routing protocols to solve the problems of learning all routes, choosing the best route to each subnet

A

Algorithm

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15
Q

RIP

A

Routing information protocols

16
Q

IGRP

A

Interior routing gateway protocol

17
Q

IS-Is

A

Intermediate systems to intermediate systems

18
Q

EIGRP

A

Enhanced interior gateway routing protocols

19
Q

VSLAM

A

Variable length subnet masks

20
Q

_____ distance is a number that denotes how believable an entire routing protocol is on a single router

A

Administrative

21
Q

Routers using ___-state protocols need to collectively advertise practically every detail about the internetwork

A

Link

22
Q

LSA

A

Link state advertisements

23
Q

LDSB

A

Link state database

24
Q

RID

A

Router identifier

25
Q

A_____ interface is a virtual interface whose status code is always up/up

A

Loop back

26
Q 
Which o the following routing protocols are considered to use link-state logic? (Choose two)
RIP-1
RIP-2
EIGRP
OSPF
Integrated IS-IS
A

OSPF

Integrated IS-IS

27
Q 
Which of the following routing protocols use a metric that is by default at least partially affected by link bandwidth? (Choose two)
RIP1
RIP2
EIGRP
OSPF
A

EIGRP

OSPF

28
Q 
Which of the following interior routing protocols support VSLAM? (Choose four)
RIP1
RIP2
EIGRP
OSPF
integrated IS-IS
A

Not RIP1

29
Q

Which of the following is true about how a router using a link state routing protocol chooses the best route to reach a subnet?
The router finds the best route in the link-state database
The router calculates the best route by running the SPF algorithm against the information in the link state database
The router compares the metrics listed for that subnet in the updates received from each neighbor and picks the best (lowest) metric route
The router uses the path that has the lowest hop count

A

The router calculates the best route by running the SPF algorithm against information in the link state database

30
Q 
OSPF runs an algorithm to calculate the currently best route. Which of the following terms refers to that algorithm? (Choose two)
SPF
Dual
Feasible successor
Dijkstra
Good old common sense
A

SPF

Dijkstra

31
Q 
Which of the following 'network' commands, following the command 'router OSPF 1' tells this router to start using OSPF in interfaces whose IP addresses are 10.1.1.1, 10.1.100.1, and 10.1.120.1
Network 10.0.0.0 255.0.0.0 area 0
Network 10.0.0.0 0.255.255.255 area 0
Network 10.0.0.1 0.0.0.255 area 0
Network 10.0.0.1 0.0.255.255 area 0
A

Network 10.0.0.0 0.255.255.255 area 0

32
Q 
Which of the following 'network' commands following the command 'router OSPF 1' tells this router to start using OSPF on interface whose IP addresses are 10.1.1.1, 10.1.100.1, and 10.1.120.1
Network 0.0.0.0 255.255.255.255 area 0
Network 10.0.0.0 0.255.255.0 area 0
Network 10.1.1.0 0.x.1x.0 area 0
Network 10.1.1.0 255.0.0.0 area 0
Network 10.0.0.0 255.0.0.0. Area 0
A

Network 0.0.0.0 255.255.255.255 area 0

33
Q 
Which of the following commands list the OSPF neighbors off interface serial 0/0? (Choose two)
Show IP OSPF neighbor
Show IP OSPF neighbor brief
Show IP neighbor
Show IP interface
Show IP OSPF neighbor serial 0/0
A

Show IP OSPF neighbor

Show IP OSPF neighbor serial 0/0

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