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CompTIA Network+ > Chapter 10 - Supplement - Sheet1 > Flashcards

Chapter 10 - Supplement - Sheet1 Flashcards

1
Q

IGP

A

Interior Gateway Protocols. Used to exchange routing information with routers in the same autonomous sytem.

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2
Q

AS

A

Autonomous system. Colection of networks under a common administrative domain.

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3
Q

EGP

A

Exeterior gateway protocols. Used to communicate between multiple autonomous systems

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4
Q

Two types of dynamic routing

A

IGP, EGP

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5
Q

Two types of IGP

A

Distance Vector, Link State

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6
Q

AD

A

Administrative Distance. Used to rate the trustworthiness of routing information received on one router from its neighboring router. Integer from 0 - 255.

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7
Q

AD = 0

A

Most trusted route

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8
Q

AD = 255

A

Least trusted route. No traffic is allowed to be passed via this route.

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9
Q

Default AD of a connected interface

A

0

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10
Q

Default AD of a static route source

A

1

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11
Q

Default AD of EIGRP route source

A

90

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12
Q

Default AD of IGRP route source

A

100

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13
Q

Default AD of OSPF route source

A

110

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14
Q

Default AD of RIPv1 and RIPv2 route source

A

120

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15
Q

Default AD of external EIGRP route source

A

170

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16
Q

Default AD if route source is unknown

A

255

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17
Q

Distance Vector Protocols

A

Finds the best path to a remote network by judging distance in hops. Fewest hops = best route

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18
Q

Examples of vector protocols

A

RIP, RIPv2, Interior Gateway Routing Protocol (IGRP)

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19
Q

Link State Protocols

A

Classess protocol. Routers have three tables, 1 for directly attached neighbors, 1 for topology of entire internetwork, 1 is actual routing table. Has more information about a network than any distance vector protocol

20
Q

Examples of link state protocols

A

OSPF and IS-IS

21
Q

Routing by Rumor

A

Distance vector protocol has routers pass on their routing tables to their neighbors, which combine the data with their own table and pass that on to their neighbors. All routers believe the info without verification.

22
Q

3 Metrics kept by converged routers

A

Remote network number, interface used to send packets, hop count to the network

23
Q

Converged

A

Distance Vector protocol Routers are considered converged when their routing tables are complete

24
Q

RIP

A

Distance vector protocol. Sends complete routing table every 30 seconds. Uses hop count.

25
Q

Max allowable hop for RIP

26
Q

Differences between RIPv1 and RIPv2

A

RIPv2 is classless (sends subnet info w/each update so can be used with devices on different subnets), uses multicase instead of broadcasts, supports VLSM networks, allows MD5 auth, supports discontiguous networks, RIPv1 sends broadcasts every 30 seconds. RIPv2 sends multicasts.

27
Q

VLSM

A

Variable length subnet masking. Allows for different subnet masks for different router interfaces.

28
Q

Classful Routing

A

Routers update without the subnet mask. For example, a network 172.16.0.0 could be 172.16.10.0/24 and another could be 172.16.20.0/24. With classful routing, the routers don’t consider subnet mask, creating potential confusion.

29
Q

Classless Routing

A

Routers update with the subnet mask.

30
Q

EIGRP

A

Enhanced IGRP (Interior Gateway Routing Protocol)

31
Q

OSPF

A

Open Shortest Path First. Open-standard routing protocol. Type of link state protocol. Must keep a separate database of topologies for IP and IPv6

32
Q

IS-IS

A

Intermediate System to Intermediate System. IGP protocol, not for routing between autonomous systems. Link state protocol. Uses CLNS, not IP, to communicate, meaning IP and IPv6 are all the same it it.

33
Q

CLNS

A

Connectionless Network Service. IS-IS uses this to communicate between routers.

34
Q

Name the IPv6 routing protocols

A

RIPng, EIGRPv6, OSPFv3

35
Q

EIGRP uses what algroithm to maintain rout information

A

DUAL (Diffusing Update Algorithm)

36
Q

What network protocols does EIGRP support?

A

IP, IPX, AppleTalk, IPv6

37
Q

The default administrative distance of RIP is___________________.

38
Q

The default administrative distance of EIGRP is___________________.

39
Q

The default administrative distance of RIPv2 is___________________.

40
Q

What is the default administrative distance of a static route?

41
Q

What is the version or name of RIP that is used with IPv6?

A

RIPng (Next Generation)

42
Q

What is the version or name of OSPF that is used with IPv6?

43
Q

What is the version or name of EIGRP that is used with IPv6?

44
Q

When would you use BGP?

A

When connecting two autonomous systms together

45
Q

When could you use EIGRP?

A

When all routers are Cisco, of course!

46
Q

Is BGP considered link state or distance vector?

A

Distance Vector

CompTIA Network+ (30 decks)

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