Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
AP/ITEC1010
Network and Cloud Computing
| Term | Definition |
|---|---|
| computer network | the communications media, devices, and software needed to connect two or more computer systems or devices |
| Network nodes | the computers and devices on the networks |
| Network topology | the shape or structure of a network, including the arrangement of the communications links and hardware devices on the network |
| Star network | network where all devices connect to one another through a single central hub node |
| Bus network | network where all devices are connected to a common backbone that serves as a shared communications medium |
| Mesh network | network that uses multiple access points to link a series of devices that speak to each other to form a network connection across a large area |
| Personal area network (PAN) | supports the interconnection of information technology close to one person |
| Local area network (LAN) | connects computer systems and devices within a small area |
| Metropolitan area network (MAN) | connects users and their devices in an area that spans a campus or city |
| Wide area network | connects large geographical regions, consists of computer equipment owned by the user, data communications equipment and telecommunications links provided by various carriers and service providers |
| Client/server architecture | features multiple computer platforms dedicated to special functions |
| Client | any computer that sends messages requesting services from the servers on the network |
| Database server | sends only the data that meets a specific query - not the entire file |
| Channel bandwidth | the rate at which data is exchanged |
| Broadband communications | a relative term; a telecommunications system that can transmit data very quickly |
| Guided (wired) transmission media | communications where signals are guided along a solid medium |
| Wireless | communications where the signal is broadcast over airwaves as a form of electromagnet radiation |
| Guided transmission media: twisted-pair wire | twisted pairs of copper wires, shielded or unshielded; used for telephone service |
| Guided transmission media: coaxial cable | inner conductor wire surrounded by insulation |
| Guided transmission media: Fiber-optic cable | many extremely thin strands of glass bound together in a sheathing; uses light beams to transmit signals |
| Radio frequency range | 3KHz - 300 MHz frequency transmission |
| Microwave-terrestrial and satellite frequency range | high frequency (300 MHZ - 300 GHz) |
| Infrared frequency range | 300 GHz - 400 THz frequency range |
| Near field communication (NFC) | a very short-range wireless connectivity technology |
| Bluetooth | a wireless communications specification that describes how cell phones, computers, personal digital assistants, etc., can be interconnected |
| Wi-Fi | wireless telecommunications technology that employs a wireless access point that receives the signal and decodes it (transmits signal into a radio signal and sends it to the device's wireless adapter |
| "Hot spot" | an area covered by one or more interconnected wireless access points |
| Microwave transmission qualities | Line-of-sight, relay stations, 30 miles apart, high capacity, elevated locations |
| Modem | translates digital data into an analog signal for transmission over telephone lines |
| Fax modem | combines data from multiple signals to send/receive faxes via the network |
| Multiplexer | allows several communications signals to be transmitted over a single communications medium at the same time, thus saving expensive long-distance communications costs |
| Gateway | serves as an entrance to another network, such as the internet |
| Router | Forwards data packets across two or more distinctive networks towards their destinations through a process known as routing |
| Bridge | connects two LANs where both use the same communications protocol |
| Switch | uses the physical device address in each incoming message on the network to determine which output port it should forward the message to reach another device on the same network |
| Front-end processor | manages communications to and from a computer system serving many people |
| PBX (private branch exchange) | manages both voice and data transfer within a building and to outside lines |
| Network operating system (NOS) | systems software that controls the computer systems and devices on a network |
| Network-management software | Protects software from being copied, modified, or downloaded illegally, locates telecommunications errors and potential network problems |
| Mobile device management software (MDM) | manages and troubleshoots mobile devices remotely, pushing out applications, data, patches and settings |
| Central control group | maintains group policies for security, control system settings ensure malware protection is in place for mobile devices used across the network |
| Software-defined networking (SDN) | an emerging approach to networking that allows administrators to have programmable central control of the network via controller without requiring physical access to all network devices |
| Backbone of the internet | the cables, routers, switching stations, communications towers, and satellites, network service providers - fiber optic cables, that span the globe |
| IP protocol | the set of rules used to pass packets from one host to another |
| Transmission control protocol (TCP) | the widely used transport layer protocol that most internet applications use with IP |
| IP address | a 64-bit number that identifies a computer on the internet (DNS/Domain name system is an alternative to numbers) |
| Uniform resource locator (URL) | a web address that specifies the exact location of a web page using letters and words that map to an IP address and host location |
| Internet Corporation for assigned names and numbers (ICANN) | responsible for managing IP addresses and Internet domain names |
| Connecting via LAN server | connection method for businesses and organizations that manage a local area network |
| Internet service provider (ISP) | any organization that provides internet access to people (must have an account plus software and devices) |
| Dial-up internet | Internet connection that uses modem and standard phone line |
| Cable modem connections | Internet connection that uses coaxial cable for broadband internet |
| DSL connections | Internet connection that uses telephone lines for faster speeds than dial up |
| Wireless connection | Internet service over cellular and wi-fi networks |
| The Internet | the infrastructure on which the Web exists, made up of computers, network hardware such as routers and fiber-optic cables, software, and TCP/IP protocols |
| The World Wide Web | Consists of server and client software, the hypertext transfer protocol (http), standards, and markup languages that combine to deliver information and services over the internet |
| Hyperlink | highlightes text or graphics in a web document that opens a new web page when clicked |
| Web browser | web client software used to view web pages |
| Web site | a collection of pages on one particular topic, accessed under one web domain |
| Hypertext Markup language (HTML) | the standard page description language for web pages which tells the browser how to display font characteristics, paragraph formatting, page layout, image placement, hyperlinks, and the content of a web page |
| Extensible Markup language (XML) | a markup language designed to transport and store data on the web between web service applications |
| Cascading Style Sheets (CSS) | a file or portion of an HTML file that defines the visual appearance of content in a Web page |
| JavaScript | A popular programming language for client-side applications, used to create web pages that responds to user actions |
| Java | an object-oriented programming language from Sun Microsystems based on C++, allows small programs (applets) to be embedded within an HTML document |
| Amazon web services (AWS) | basic infrastructure that amazon employs to make the contents of its online catalog available to other web sites or software applications |
| Intranet | a internal corporate network built using internet and world wide web standards and technology |
| Extranet | a network based on web technologies that link resources of a companies intranet with its customers suppliers or other business partners |
| Virtual private network (VPN) | a secure connection between two points on the internet |
| Tunneling | the process by which VPNs transfer information by encapsulating traffic in IP packets over the internet |
| Internet of Things (IoT) | a network of physical objects (things) embedded with sensors, processors, software, and network connectivity capability to enable them to exchange data with the manufacturer of the device, device operators, and other connected devices |
| Sensor | a device capable of sensing something about its surroundings such as pressure, temperature, PH level, etc. |
| Cloud computing | a computing environment in which software and storage are provided as an internet service and accessed with a web browser |
| Infrastructure as a service (IaaS) | cloud computing examples: virtual machines, servers, storage devices, network devices |
| Software as a service (SaaS) | cloud computing examples: customer relationship management, email, collaboration |
| Platform as a service (PaaS) | cloud computing examples: operating system, programming language, database, web server |
| Private Cloud environment | a single tenant cloud, organizations often use due to concerns that data will not be secure in public cloud |
| Hybrid cloud computing | composed of both private and public clouds integrated through networking |
| Autonomic computing | the ability of IT system to manage themselves and adapt to changes in the computing environment, business policies and operating objectives |
| Goal of autonomic computing | to create complex system that run themselves while keeping the systems complexity invisible to the end user |
| Edge computing | a distributed model that runs compute/storage close to where data is generated |
Created by:
user-2024460
Popular Computers sets