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COMPTIA Network+ > Section 2 > Flashcards

Section 2 Flashcards

1
Q

OSI model

A

Physical, Data Link, Network, Transport, Session, Presentation, Application

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2
Q

TCP/IP model

A

Network Interface, Internet, Transport, Application

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3
Q

Where are Frames created?

A

In the Network card (NIC) frames can be a maximum of 1500 bytes

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4
Q

Broadcast vs Unicast

A

Unicast will have a specific MAC address, Broadcast address will look like FF-FF-FF-FF-FF-FF

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5
Q

Broadcast domain

A

If you have a group of computers that can hear each others broadcasts

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6
Q

Logical addressing

A

IP addressing used to identify a specific network. the first 3 values will be used ex: IPv4, IPv6 (IP packets never change within the frame

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7
Q

Default gateway

A

Connection to the router itself

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8
Q

Routing table

A

determines where to send the packets

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9
Q

Port numbers

A

are unique to individual applications used on the internet (Port 80 HTTP, Port 20/21 FTP) Range 0-65535 but the first 1024 are reserved

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10
Q

TCP vs UDP

A

TCP is a connection oriented conversation between 2 computers. UDP is connectionless

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11
Q

Physical layer

A

Cables

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12
Q

Data link

A

MAC addresses, network cards, switches

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13
Q

Network

A

Routers, IP addresses, Logical addresses

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14
Q

Transport

A

Assembles and disassembles packets to get to another system

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15
Q

Session

A

Actual connection between two systems, ex: TCP, email, Sharing a folder

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16
Q

Presentation

A

Putting data into a form that your computer can read

17
Q

Application

A

API

18
Q

Network Interface Layer

A

Deals with everything hardware except Routers (Data Link/Physical)

19
Q

Internet layer

A

IP addresses, Routers

20
Q

Transport

A

Assembly and disassembly, connection to system, TCP/UDP

21
Q

Application

A

Session, Presentation, Application layer. TCP/IP looks at applications as application (ex: Email, FTP, Telnet)

COMPTIA Network+ (9 decks)

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