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EB Study for n006 > CH9 + 10 IP Routing and Routing Protocols > Flashcards

CH9 + 10 IP Routing and Routing Protocols Flashcards

1
Q

How do you show the routing table on a router

A

show ip route or sh ip route

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2
Q

how do you display ARP cache on a router

A

show ip arp or sh ip arp

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3
Q

Name the distance vector protocols

A

RIPv1, RIPv2, IGRP

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4
Q

Name the link state routing protocols

A

OSPF, IS-IS

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5
Q

Name the hybrid routing protocols

A

EIGRP, BGP

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6
Q

What type of routing protocol finds the best path to a remote network by judging the hops

A

Distance vector

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7
Q

____Sends routing table updates every 30 seconds, uses a hop count of max 15 to determine best route.

A

RIP, RIPv2

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8
Q

___Uses classfull routing only

A

RIP

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9
Q

What is not supported with RIP____,____,____

A

VSLM, authentication, discontinuous networks.

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10
Q

Bellman Ford algorithm and use of a flat network is used with

A

RIP

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11
Q

What routing protocol supports VSLM, and discontinuous networks?

A

RIPv2

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12
Q

____ is a classless protocol that maintains two additional tables aside from the routing table

A

LInk State

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13
Q

What protocol uses Dijkstra algorithm?

A

OSPF

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14
Q

OSPF supports

A

IPv4, IPV6, VSLM/CIDR, unlimited hop count.

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15
Q

What are the main benefits with OSPF?

A 
Highly scalable
minimizes route updates
uses loopback(logical int)
VLSM
Bandwidth as path metric over hops
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16
Q

What protocol floods info throughout a network of routers which then each router builds a picture of the networks topology?

A

IS-IS

17
Q

Unlike OSPF IS-IS uses ____ to provide connectionless delivery of data packets between routers

A

Connectionless Network Service(CLNS)

18
Q

Why is IS-IS preferred over OSPF by ISP’s

A

It can run IPv4 and IPv6 without creating a sep[erate database for each protocol making it much more efficient for larger networks.

19
Q

What type of protocol uses elements from distance vector and link state?

A

Hybrid

20
Q

BGP is the ___ of the internet

A

core routing protocol

21
Q

First hop redundancy protocols(FHRPs) work by

A

Giving you a way to configure more then one physical router to appear as if they where only a single logical one.

22
Q

Host standby routing protoco(HSRP) is

A

a Cisco proprietary protocol that provides a redundant gateway for hosts on a local subnet.

23
Q

What allows for two or more routers into a standby group that share same IP and MAC address

A

HSRP

24
Q

Virtual Redundancy Routing protocol(VRRP) provides

A

A redundant gateway for hosts on a local subnet; open-standard

25
Q

What allows for classless routiong

A

Variable length subnet masks(VSLM). VSLM sends the subnet mask with route updates

26
Q

A collection of networks or subnets in the same administrative domain is called an____

A

Autonomous system(AS)

27
Q

___ Is used to rate the trustworthiness of routing information received on one router from its neighboring router. 0 being the most trustworthy 255 no traffic allowed

A

Administrative distance(AD)

28
Q

What interface is most trustworthy

A

Connected interface 0

29
Q

What interface is second most trustworthy

A

Static Route 1

30
Q

External BGP has a default AD of ____

A

20

31
Q

Destination Unknown has an AD of

A

255

32
Q

Different routing protocols default AD

A 
External BGP 255
Internal EIGRP 90
IGRP 100
OSPF 110
ISIS 115
RIP 120
External EIGRP 170
Internal BGP 200
33
Q

What is the function of a distribution router?

A

They collect data from end user locations and redistribute them to an enterprise location such as a company’s headquarters

34
Q

______ combines an ethernet data path with in IS-IS link state control protocol running between shortest bath bridges

A

Shortest path bridging(SPB)

35
Q

What replaces STP

A

SPB because it simplify’s network creation while enabling multipath routing.

EB Study for n006 (17 decks)

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