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Networks – C480 - CompTIA Network+ > Routing > Flashcards

Routing Flashcards

1
Q

RIP

A

Routing Information Protocol
Dynamic routing protocol
Makes decisions based on hop count

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2
Q

OSPF

A

Open Shortest Path First
Dynamic routing protocol
Considers available bandwidth when making routing decisions

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3
Q

Convergence

A

Failing over from one route to a backup route

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4
Q

Routing Protocol

A

A protocol that advertises route information between routers

RIP, OSPF, EIGRP

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5
Q

Routed Protocol

A

A protocol with an addressing scheme that defines different network address.
IP

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6
Q

IGP

A

Interior Gateway Protocols

Operate within an autonomous system

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7
Q

EGP

A

Exterior Gateway Protocols

Operate between autonomous systems

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8
Q

AD

A

Administrative Distance
Index of believability
Lower AD values are more believable

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9
Q

Metric

A

Value assigned to a route

Lower metrics are better

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10
Q

Route Advertisement Methods

A

Distance Vector

Link State

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11
Q

Distance-Vector Routing Protocol

A

Sends full copy of routing table to directly attached neighbors
Sends full table periodically, even if nothing changed
Slow convergence

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12
Q

Split Horizon

A

Prevents route learned on one interface from being advertised out the same interface
Used to prevent routing loops on distance-vector protocols

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13
Q

Poison Reverse

A

Route received on one interface advertised back out same interface with metric considered to be infinite.
Used to prevent routing loops on distance-vector protocols

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14
Q

Link State Routing Protocol

A

Routers build topological map of network. Execute algorithm to calculate optimal path(s) to destination. Routers send updates when changes occur in network rather than repeatedly sending full routing information.

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15
Q

IS-IS

A

Intermediate System-to-Intermediate System

Dynamic, Link-state routing protocol

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16
Q

EIGRP

A

Enhanced Interior Gateway Routing Protocol

17
Q

Route Redistribution

A

Multiple routing protocols on the same network can be used to update each other

18
Q

NAT

A

Network Address Translation

Translates a private IP address into a publicly routable IP address.

19
Q

DNAT

A

Dynamic NAT
Inside local addresses randomly assigned from a pool of addresses.
Many-to-many mapping

20
Q

SNAT

A

Static NAT
Statically assign one routable address to a device.
Many-to-one mapping

21
Q

PAT

A

Port Address Translation

Many inside local addresses share a single inside global address

22
Q

IGMP

A

Internet Group Management Protocol

Multicast

23
Q

PIM

A

Protocol Independent Multicast

Multicast

Networks – C480 - CompTIA Network+ (22 decks)

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