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Network+ > OSI Model > Flashcards

OSI Model Flashcards

1
Q

Layer 1

A

Physical

Wires and hubs / repeaters & extenders

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2
Q

Layer 2

A

Data link

MAC address arp request
Switches

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3
Q

Layer 3

A

Network

Routers and IP addresses

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4
Q

Layer 4

A

Transport

TCP/UDP firewalls / load balancer/ wan accelerator

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5
Q

Layer 5

A

Session

Voice and video sessions / RTP / NetBios
Authentication & authorization

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6
Q

Layer 6

A

Presentation

Data format and encryption
ASCII gif jpg png

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7
Q

Layer 7

A

Application

Email protocols / file sharing protocols / web browsing protocols

DNS SSH SNMP etc

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Network+ (4 decks)

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