Internet Flashcards
What is Network?
A network is a group of computers or other devices which are connected to each other.
What is Internet?
The internet is a network of networks.
For example, you at your home might have a network of computers and devices. Your friend living next door might have a similar network of devices. Their neighbor might have a similar network of devices. All these networks when connected together form the internet.
When was Internet developed?
It was developed in the late 1960s by the United States Department of Defense as a means of creating a decentralized communication network that could withstand a nuclear attack.
How the Internet Works?
Internet works by connecting devices and computer systems together using a set of standardized protocols. These protocols define how information is exchanged between devices and ensure that data is transmitted reliably and securely.
What is the core of the Internet?
A global network of interconnected routers, which are responsible for directing traffic between different devices and systems.
How data is being sent over the Internet?
When you send data over the internet, it is broken up into small packets that are sent from your device to a router. The router examines the packet and forwards it to the next router in the path towards its destination. This process continues until the packet reaches its final destination.
How to ensure that packets are sent and received correctly?
The internet uses a variety of protocols, including the Internet Protocol (IP) and the Transmission Control Protocol (TCP). IP is responsible for routing packets to their correct destination, while TCP ensures that packets are transmitted reliably and in the correct order.
What are the core protocols?
Internet Protocol (IP) and Transmission Control Protocol (TCP)
What is Packet?
A small unit of data that is transmitted over the internet.
What is Router?
A device that directs packets of data between different networks.
What is IP Address?
A unique identifier assigned to each device on a network, used to route data to the correct destination.
IP addresses are typically represented as a series of four numbers separated by periods, such as “192.168.1.1”.
What is Domain Name?
A human-readable name that is used to identify a website, such as google.com.
What is DNS?
The Domain Name System is responsible for translating domain names into IP addresses.
DNS is a critical part of the internet infrastructure, responsible for translating domain names into IP addresses. When you enter a domain name into your web browser, your computer sends a DNS query to a DNS server, which returns the corresponding IP address. Your computer then uses that IP address to connect to the website or other resource you’ve requested.
What is HTTP?
The Hypertext Transfer Protocol is used to transfer data between a client (such as a web browser) and a server (such as a website).
What is HTTPS?
An encrypted version of HTTP that is used to provide secure communication between a client and server.
