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
The ________ layer is responsible for getting data from one node to another while the ________ layer, is responsible for ensuring that data gets to the right applications running on those nodes.
- network = data from one node to another
- transport = data to the right application on a node
What is the difference between a client and a server?
A client requests data and a server answers that request over a network
In which layer do you find Ethernet?
The Data Link Layer
Which layer allows a user and their computer to interface to a network to view a message, data request, or response?
The Application Layer
Which layer provides end to end communication control?
The Transport Layer
What is the fifth layer of the TCP/IP model?
The Application Layer
What are the two most popular computer networking models? How many layers does each one have?
TCP/IP (5 layers)
OSI (7 layers)
Which layer could be considered the contents of the data package?
The Application Layer
Please Do Not Touch Adamdriver
- Physical
- Data link
- Network
- Transfer
- Application
The OSI model has two more layers than the TCP/IP model because it abstracts which layer into three separate layers?
The OSI Model abstracts the application layer into 3 separate layers.
Which layer controls the routing of a
packet from one network to another?
The Network (or Internet) Layer
