Unit 2 Flashcards
What’s a computing device?
A machine that can run an program including computers, tablets, servers routers, and smart sensors
What’s a computing system?
A group of computing devices and programs working together for a common purpose
What a computing network?
A group of interconnected computing devices cable of sending or receiving data
what’s path?
The series of connections between computer devices on a network starting with a sender and ending with a receiver
What’s a band width?
The maximum amount of data that can be sent in a fixed amount of times usally measured in bits per second
What a router?
A physical or virtual appliance that passes information between two or more packet 8 witched computer networks
What redundancy?
The vital practice of incorporating backup components or system to ensure uninterrupted operation
What’s fault tolerance?
A process that enables an operating system to respond to a failure in hardware or software
How does the DNS solve the problem of translation domain names like exmple.com into IP address?
They control which server an end user will reach when type a domain name into their web browser
How does the DNS help the internet scale ?
It accommodates the growing number of domain names and IP address on the internet.
What problem is HTTP solving?
How to ask for a file
What is a GET request and what are your requesting
A way for you to grab data from a data source with the help of the internet
What does HTTP stand for?
Hyper Text Transfer Protocol
How does the Http rely on the other layers of the internet?
HTTP relies on IP package the data sent by TCP in IP packets and route them to their destination
What do certificate authorities do and why are they necessary?
They help secure the internet for both organizations and users
