Bits & Bytes: Week 1, I & II - TCP/IP 5 Layer Model Flashcards
What is a defined set of standards that computers must follow to communicate properly?
Protocol
ACRONYM:
OSI Model
Open Systems Interconnection model
Which layer transfers data over one network and which layer transfers data across a collection of many networks?
- Data Link layer = one;
- Network layer = many
This layer provides error control by defining a common way of interpreting signals so that network devices can communicate.
The Data Link Layer; aka the network interface or network access layer
What is the most common protocol used in the Network Layer?
IP; or Internet Protocol
What is the general term for the full scope of how computers communicate with each other?
Computer networking
What is the first layer of the TCP/IP Model?
the Physical Layer
Each layer has a different level of __________ and performs a well defined ___________
- abstraction;
- function.
What is the fourth layer of the TCP/IP model?
The Transport Layer
Which network protocol provides mechanisms to ensure that data is reliably delivered and which does not?
The Transmission Control Protocol (TCP) is more secure; the User Datagram Protocol (UDP) is less secure.
What is another term for the standards responsible for getting data to nodes on the same network?
Ethernet Protocol
What is the third layer of the TCP/IP model?
The network layer, also known as the Internet Layer
What is the second layer of the TCP/IP Model?
the Data Link Layer
ACRONYM:
UDP
User Datagram Protocol
Which layer electrically and mechanically connects the entity to the transmission media?
The Physical Layer
