OSI Model

Prompts and answers

• What does the "OSI" in "OSI Model" stand for?
  Open Systems Interconnection
• How many layers (in digits) does the OSI model have?
  7
• What is the key term for when pieces of information get added to data?
  encapsulation
• What is the name of this Layer?
  Physical
• What is the name of the numbering system that is both 0's and 1's?
  Binary
• What is the name of the cables that are used to connect devices?
  Ethernet Cables
• What is the name of this Layer?
  Data Link
• What is the name of the piece of hardware that all networked devices come with?
  Network Interface Card
• What is the name of this Layer?
  Network
• Will packets take the most optimal route across a network? (Y/N)
  Y
• What does the acronym "OSPF" stand for?
  Open Shortest Path First
• What does the acronym "RIP" stand for?
  Routing Information Protocol
• What type of addresses are dealt with at this layer?
  IP Addresses
• What is the name of this Layer?
  Transport
• What does TCP stand for?
  Transmission Control Protocol
• What does UDP stand for?
  User Datagram Protocol
• What protocol guarantees the accuracy of data?
  TCP
• What protocol doesn't care if data is received or not by the other device?
  UDP
• What protocol would an application such as an email client use?
  TCP
• What protocol would an application that downloads files use?
  TCP
• What protocol would an application that streams video use?
  UDP
• What is the name of this layer?
  Session
• What is the technical term for when a connection is succesfully established?
  Session
• What is the name of this Layer?
  Presentation
• What is the main purpose that this Layer acts as?
  Translator
• What is the name of this Layer?
  Application
• What is the technical term that is given to the name of the software that users interact with?
  Graphical User Interface
• Escape the dungeon to retrieve the flag. What is the flag?
  THM{OSI_DUNGEON_ESCAPED}