Fichas
Topic 9
Fichas del conjunto (75)
- 1Serial Transmissiondata is transmitted one bit at a time down a single wire
- 2Parallel Transmissiondata is transmitted several bits at a time using multiple wires
- 3Bandwidtha measure of the capacity of the channel down which the data is being sent
- 4Bit ratethe rate at which data is actually being transmitted
- 5Baud rateA communication system’s Baud rate is the number of signal changes in the medium per second.
- 6Bandwidthrelates to the range of frequencies that a communication medium is capable of transmitting.
- 7Latencythe time delay that occurs when transmitting data between devices
- 8Synchronous data transmissiondata is transmitted where the pulse of the clock of the sending and receiving device are in time with each other
- 9Asynchronous data transmissiondata is transmitted between 2 devices that do not need to share a common clock signal
- 10Start bita bit used to to indicate that start of a unit of data in asynchronous data transmission
- 11Stop bita bit used to indicate the end of a unit of data in asynchronous data transmission
- 12Parity bita method of checking binary codes by counting the number of 0 and 1s in the code
- 13Protocola set of rules
- 14TCP/IPa set of protocols for all TCP/IP network transmissions
- 15HTTPthe protocol to define the identification, request and transfer of multimedia content over the internet
- 16FTPa protocol for handling file uploads and downloads
- 17Networkdevices that are connected together to share data and resources
- 18Network adapter / Network Interface Carda card that enables devices to connect to a network
- 19Network topologythe layout of a network, usually in terms of its conceptual layout rather than its physical layout
- 20Local Area Networka layout of a network, usually one one site and typically used by one organisation
- 21Wide area networka network spread over a large geographical distance
- 22Star Topologya way of connecting devices in a network where each workstation has a dedicated cable to a central computer or switch
- 23Bus Topologya network layout that uses one main data cable as a backbone to transmit data
- 24Physical TopologyThe way in which devices in a network are physically connected
- 25Logical Topologythe conceptual way in, data is transmitted around a network
- 26Client Servera network methodology where one computer has the main processing power and storage and the other computers act as clients requesting services from the server
- 27Peer-to-peera network methodology where all devices in a network share resources between them rather than having a server
- 28Wireless Wide Area Networka WAN that does not use cables, but sends data using radio waves
- 29Media Access Controla unique code that identifies a particular device on a network
- 30WiFia standard method for connecting devices wirelessly to a network and to the internet
- 31Wireless Local Area Networka LAN that does not use cables but connects using radio waves
- 32Request to send / Clear to senda protocol to ensure data does not collide when being transmitted on wireless networks
- 33Service Set Identifiera locally unique 32-character code that identifies a device on a wireless network
- 34WiFi Protected Accessa protocol for encrypting data and ensuring security on WiFi networks
- 35Interneta global network of networks
- 36Uniform Resource Locatora method for identifying the location of resources on the internet
- 37Domain Namethe recognisable name of a domain on the internet
- 38Internet Protocol Addressa unique number that identifies devices on a network
- 39Portused to identify a particular process or application on a network
- 40POP3a protocol for receiving emails
- 41Domain Name Servera server that contains domain names and associated IP addresses
- 42Port Forwardinga method of routing data through additional ports
- 43Socketan endpoint of a communication flow across a computer network
- 44Subnet Maskinga method of dividing a network into multiple smaller networks
- 45Dynamic Host Configuration ProtocolA set of rules for allocating locally unique IP addresses to devices as they connect to a network
- 46Internet registriesorganisations who allocate and adminster domain names and IP addresses
- 47Regional Internet Registryone of five organisations that allocate and administer domain names and IP addresses in different parts of the world
- 48Gatewaya node on a network that acts as a connection point to another network with different protocols
- 49Packeta block of data being transmitted
- 50RoutingThe process of directing packets of data between networks
- 51Packet switchinga method for transmitting packets of data via the quickest route on a network
- 52Checksuma method of checking the integrity of data by calculating a sum based on the data being sent
- 53Firewallhardware or software for protecting against unauthorised access to a network
- 54Packet Filteringa technique for examining the contents of packets on a network and rejecting them if they do not conform to certain rules
- 55Stateful Inspectiona technique for examining the contents of packets on a network and rejecting them if they do not form part of a recognised communication
- 56Symmetric Encryptionwhere the sender and receiver both use the same key to encrypt and decrypt data
- 57Asymmetric encryptionwhere a public and private key are used to encrypt and decrypt data
- 58Private Keya code used to encrypt/decrypt data that is only known by one user but is mathematically linked to a corresponding public key
- 59Public Keya code used to encrypt and decrypt data that can be made public and is linked to a corresponding private key
- 60Digital Certficatea method of ensuring that an encrypted message is from a trusted source as they have a certificate from a certification authority
- 61Certification Authoritya trusted organisation that provides digital certificates and signatures
- 62Digital Signaturea method of ensuring that an encrypted message is from a trusted source as they have a unique, encrypted signature verified by a certification authority
- 63Trojanmalware that is hidden within another file on a computer
- 64Virusa generic term for malware where the program attaches itself to another file in order to infect a computer
- 65Wormmalware or a type of virus that replicates itself and spreads around a computer system.
- 66Secure Shell Protocola protocol for remote access to computers
- 67SMTPa protocol for sending emails
- 68Email Servera dedicated computer on a network for handling web content
- 69Web servera dedicated computer on a network for handling web content
- 70Web browseran application for viewing web pages
- 71Application Program Interfacea set of subroutines that enable one program to interface with another program
- 72Websocket protocola set of rules that creates a persistent connection between 2 computers on a network to enable real time collaboration
- 73Thin Clientin a network where one computer contains the majority of the resources, processing power and storage capacity, which it distributes to other clients
- 74Terminala computer that has little or no processing power or storage capacity used as a client in a thin client network
- 75Thick Clientin a network where resources, processing power and storage capacity are distributed between the server and the clients computers
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- Computing New Fichas sobre Topic 9, creado por Sam Carvell el 07/06/2019.
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- Sam Carvell
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