Module 1 Flashcards
Network
A group of connected devices
Local Area Network (LAN)
A network that spans a small area like an office building, a school, or a home
Wide Area Network (WAN)
A network that spans a large geographic area like a city, state, or country
Hub
A network device that broadcasts information to every device on the network
Switch
A device that makes connections between specific devices on a network by sending and receiving data between them
Router
A network device that connects multiple networks together
Modem
A device that connects your router to the internet and brings internet access to the LAN
Virtualization Tools
Pieces of software that perform network operations
Cloud Computing
The practice of using remote servers, applications, and network services that are hosted on the Internet instead of on local physical devices
Cloud Network
A collection of servers or computers that stores resources and data in remote data centers that can be accessed via the Internet
Cloud Service Providers Offer
On-demand storage
Processing power
Analytics
Data Packet
A basic unit of information that travels from one device to another within a network
Bandwidth
The amount of data a device receives every second
Speed
The rate at which data packets are received or downloaded
Packet Sniffing
The practice of capturing and inspecting data packets across a network
Transmission Control Protocol (TCP)
An Internet communication protocol that allows two devices to form a connection and stream data
Internet Protocol (IP)
A set of standards used for routing and addressing data packets as they travel between devices on a network
Port
A software-based location that organizes the sending and receiving of data between devices on a network
Port Numbers
Port 25 - Email
Port 443 - Secure Internet communication
Port 20 - Large file transfers
TCP/IP Model
A framework used to visualize how data is organized and transmitted across the network
Layers of the TCP/IP Model
Network access layer
Internet layer
Transport layer
Application layer
Internet Protocol (IP) Address
A unique string of characters that identifies the location of a device on the Internet
IP Addresses
IP version 4 (IPv4)
IP version 6 (IPv6)
IP version 4
19.117.63.126
