unit 2 Flashcards
(27 cards)
A machine that can run a program, including computers, tablets, servers, and routers
Computing Device
A group of computing devices and programs working together for a common purpose
computing system
A group of interconnected computing devices capable of sending or receiving data
computing network
The series of connections between computing devices on a network starting with a sender and ending with a receiver
path
The maximum amount of data that can be sent in a fixed amount of time
bandwidth
An agreed-upon set of rules that specify the behavior of some system
protocol
The unique number of assigned to each device on the internet
I.P. Address
A protocol for sending data across the internet that assigns unique numbers (I.P. Addresses) for each connected device
Internet Protocol
A type of computer that forwards data across a network
Router
A chunk of data sent over a network. Larger messages are divided into these that may arrive at the destination in order, out of order, or not at all
Packet
The inclusion of extra components so that a system can continue to work even if individual components fail
Redundancy
Can continue to work or function even in the event of individual components fail. This is important because elements of a complex network fail at unexpected times, often in groups
Fault Tolerant
The protocol used for transmitting web pages over the internet
HTTP (HyperText Transfer Protocol)
A protocol for sending packets quickly with minimal error-checking and no re-sending of dropped packets
UDP (user datagram protocol)
A protocol for sending packets that does error-checking to ensure all packets are received and properly ordered
TPC (transmission control protocol)
Information passed through the internet in packets
datastream
A computer network consisting of interconnected networks that use standardized networks and open communication protocols
internet
A system of linked pages, programs, and files
world wide web
The system responsible for translating domain names like “example.com” into I.P. Addresses
the domain name system (DNS)
Safe websites to prevent snooping and tampering by asking websites your web browser to communication on a secure channel
Secure Socket Layers (SSL)
A trusted entity that issues SSL certificates
Certificiate Authorities
The address of a web page
Uniform resource locator (URL)
The capacity for a system to change in size and scale to meet new demands
scalability
Causes the name server to return an incorrect I.P. Address, which results in diverting traffic to the attackers computer (or any other computer)
spoofing