Unit 4 new Flashcards
Define Network
Two or more computers or digital devices connected in order to share data and resources.
Define Local area network (LAN)
Computer network used in a certain premises for private use.
Define Wireless local area network (WLAN)
Local area network accessed using radio wave communications.
Define Wide area network (WAN)
Network of networks connecting local area networks over large geographical area
Define Internet
Global public system of interconnected computers over a large global area.
Define Protocols
Sets of rules governing how devices communicate with each other through networks.
Define Wi-Fi
A protocol allowing computers and other devices to connected to the internet or communicate with one another wirelessly.
Define Bluetooth
Protocols for short-range wireless connection between two separate devices.
Define Network interface card (NIC)
Printed circuit board allowing the computer to communicate with other devices over a computer network.
Define Media access control (MAC) address
Serial number unique to each device used to identify it on a network.
Define HUB
Device used for connecting computers to form a network, broadcasting to all connected devices.
Define Network traffic
Overall network usage caused by all the data being transmitted at a given time.
Define Network switch
Device used for connecting computers to form a network.
Define Zero login
Method of authentication not requiring a user to login.
Define malware
Software designed to gain unauthorized access to another person’s computer.
Define Anti-malware software
Software used to prevent, detect and neutralize malware.
Define Quarantine
Placing a certain file suspected to be a malware into a specific area of the device’s storage.
Define Electronic-conference
Meeting between individuals who are not in the same location using communication technology.
Define Audio-conference
People in different locations using technology to talk to each other.
Define Video-conference
People in different locations using technology to talk to each other with live video feed with the help of a camera.
Define Bridge
Device for linking separate segments of a local area network
Define Router
Device for transmitting data between networks.
Define Data packet
Small parts of network communication.
Define IP address
Set of numbers used to identify a particular computer on the internet.
Define Packet switching
When certain areas of the network are too busy to carry the packets, they are switched to emptier circuits.
Define TCP/IP
Protocol used by device to connect and communicate over the internet.
Define Intranet
Communication system solely within a company or organization.
Define Extranet
Communication system for a particular company or organization that can be accessed from the internet by other parties.
Define Cloud computing
Delivery of computer services over the internet.
Define Server
Computer that provides services to other computers on a network.
Define Hacker
person who does hacking.
Define Cloud storage
Storage of digital data on remote servers.
Define Hack
To gain unauthorized access to data in a system or computer.
Define Encryption
Process of turning information into a form that only the intended person can understand through decryption.
Define Decryption
Process of recovering the original text from encrypted text.
Define Asymmetric encryption
Method of encryption that uses two different keys.
Define Key
Piece of information used for encrypting and decrypting data.
Define Firewall
Software or hardware devices that protects against unauthorized access to a network or device.
Define Authentication
Process or action of proving or showing something to be true.
Define Password
Secret word or phrase that must be used to gain access to a something.
Define Strong password
Password that is difficult to detect by humans and computer programs.
Define Biometric methods
Technology that analyzes unique personal physical characteristics.
Define Smart card
Plastic card with built-in processor
Define Physical token
Personal device that ensures a person’s identity.
Define Electronic token
A digital currency used as a method of exchange.
Define Webinar
Teaching sessions taking place online that gives others the opportunity to ask questions.
Define Web-cast
One-way, non-interactive communication.
Define Web-conference
A live meeting held on a computer.
Define ethernet
Computers communicating through wires in a LAN connection.
Define LAN segment.
A LAN network being split into different parts, each part is a LAN segment.
Define passive attack.
A type of hacker attack that leads to no changes in the network data or systems.
Define Routing table.
A database inside a router that keeps track of paths to determine which way to forward traffic.
Define encryption
Scrambling data into a form that cannot be understood by unintended recipients.
Define virus
Computer program hidden within another program or file that replicates itself and spreads through connected devices.
Define worm
Spreads by making thousands of copies of itself without existing inside the computer files and without human interaction.