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N10-009 > OSI Layers > Flashcards

OSI Layers Flashcards

1
Q

Layer 7

A

Application (data)

  • File/network transfer
  • User interaction
  • Services
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2
Q

Layer 6

A

Presentation (data)

  • Data formatting
  • Data encryption
  • Device compatibility
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3
Q

Layer 5

A

Session (data)

  • Keeps sessions separate
  • Set up, maintain, tear down sessions
  • Credentials
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4
Q

Layer 4

A

Transport (segment)

  • TCP segments
  • UDP datagrams
  • Windowing
  • Buffering
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5
Q

Layer 3

A

Networking (packet)

  • Routing (switching)
  • IP addresses
  • Logical addressing
  • ICMP
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6
Q

Layer 2

A

Data Link (frame)

  • MAC addressing
  • Logical link control
  • NIC
  • Bridge
  • Switch
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7
Q

Layer 1

A

Physical (bit)

  • Where transmission occurs
  • Hardware
  • Physical network topology
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N10-009 (12 decks)

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