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Udemy Net+ 10-009 > IP Routing > Flashcards

IP Routing Flashcards

1
Q

Address Resolution Protocol (ARP)

A

Translates IP addresses between MAC addresses

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2
Q

Routing

A

Selecting paths in a network along which to send network traffic

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3
Q

Static Routing

A

Manually configure routers with specific paths

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4
Q

Describe Static Routing

A

Simple, but lacks flexibility and scalability

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5
Q

Routing Information Protocol (RIP)

A

One of the oldest distance vector routing protocols

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6
Q

What is the maximum number of hops for RIP ?

A

15

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7
Q

Which of the two RIP versions supports subnetting, multicast updates, and simple authentication

A

RIPv2 (classless)

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8
Q

What environments is RIP suitable for?

A

Small-to-medium networks with limited scalability and slower convergence

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9
Q

Open Shortest Path First

A

Link-state routing protocol

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10
Q

What are the key features of OSPF?

A

Hierarchal design, supports VLSM and CIDR, and updates are only sent when there are changes in the topology

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11
Q

What are the advantages of OSPF ?

A

Efficient, scalable, flexible, load-balancing, and fault tolerant

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12
Q

What networks is OSPF suitable for?

A

Large, complex networks

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13
Q

Enhanced Interior Gateway Routing Protocol (EIGRP/Hybrid Protocol)

A

Enhanced distance vector protocol, combining features of distance vector and link-state protocols

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14
Q

What metrics does EIGRP use?

A

Bandwidth, delay, load, and reliability

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15
Q

What are the key features of EIGRP?

A

Supports VLSM and CIDR, sends updates when changes occur, and uses metrics

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16
Q

Describe the advantages of EIGRP

A

Highly efficient, scalable, and quick convergence

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17
Q

What else can EIGRP provide?

A

Loop-free paths and load balancing

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18
Q

What network is EIGRP suitable for?

A

Medium to large networks especially with Cisco devices

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19
Q

Metric

A

Value associated with routes to evaluate the cost of path traversal

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20
Q

What value metrics are most desirable?

A

Lower Values

21
Q

Border Gateway Protocol

A

Essential for inter-domain routing on the internet

22
Q

What does BGP support?

A

CIDR for efficient IP address allocation

23
Q

What does BGP employ?

A

Policies for route selection and advertisement

24
Q

What protocol is used between BGP peers?

A

TCP for reliabile communications

25
Q

Where is BGP crucial?

A

ISPs and large enterprises with multiple connections to the internet

26
Q

Describe the characteristics of BGP

A

Highly flexible and scalable

27
Q

What can BGP manage?

A

Large routing tables and complex policies

28
Q

Route Selection

A

Determines the best path from source to destination

29
Q

What criteria does route selection use?

A

Administrative distance, prefix length, and metric

30
Q

Administrative Distance

A

Metric used by routes to rank the trustworthiness

31
Q

What do the lower values indicate?

A

More preferred routes

32
Q

Prefix Length

A

Number of continuous bits of the network mask

33
Q

First-Hop Redundancy Protocol

A

Used to achieve high availability with multiple physical redundant routers

34
Q

Hot Standby Router Protocol

A

Cisco’s proprietary redundancy protocol

35
Q

Virtual Router Redundancy Protocol

A

Open standard redundancy

36
Q

Virtual IP (VIP)

A

IP address that is not tied to a specific physical network interface

37
Q

What does VIP provide?

A

Redundancy and load balancing for services hosted on multiple servers

38
Q

Where are VIPs commonly used?

A

Network load balancers and failover configurations

39
Q

Do several servers share the same IP through VIP?

A

Yes

40
Q

Subinterface

A

Virtual interface where the physical interface is divided into multiple logical interfaces

41
Q

Where are the subinterfaces commonly used? What do they manage?

A

Where multiple VLANs exist on a router or switch’s single interface to manage various services or protocols

42
Q

NAT

A

Translates one IP address to another

43
Q

What provides NAT?

A

Router or firewall

44
Q

What are four advantages of NAT?

A

Conserve public IPs, no address overlaps with other LANs, easy to connect to the internet, no address renumbering if your network changes

45
Q

What are the disadvantages of NAT?

A

Translation delays packet forwarding, loss of end-to-end IP traceability, and some applications do not function with NAT

46
Q

Static NAT (One-to-one)

A

One internal address to one external address

47
Q

Dynamic NAT (Many-to-many)

A

Many different internal addresses to many different external addresses

48
Q

Port Address Translation

A

Many different internal addresses to one external address

49
Q

What is PAT aka and is it commonly used?

A

Overloading NAT or PNAT, the most common to access the internet

Udemy Net+ 10-009 (8 decks)

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