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Lesson 3 Objective

Ciw EXAM

QuestionAnswer
Network? two or more computers connected together so they can communicate with each other share resources (software: MS Office applications or hardware: printers, fax machines, storage devices) exchange information
Client/server model ? most popular form of network. individual computers and devices interact with one another through a central server
Local area network (LAN)? a group of computers connected in a small geographic area (campus, home, business) The organization owns & manages all network components
Wide area network (WAN)? a collection LANs that are linked together.
Internet? a vast network of LANs and WANs that electronically connects millions of people worldwide The Internet was formed in 1969 by ARPA, whose network, ARPANET, featured multiple servers and connections
World Wide Web? a set of software programs that enables users to access resources on the Internet via hypertext documents, or Web pages
Web page? a document created in HTML containing hypertext links that, when clicked, enable users to access a different location or document
Web site? a collection of related Web pages
Web browser? a software application that enables users to easily access, view and navigate Web pages on the Internet
Protocol? an agreed-upon format for transmitting data between two devices
Packet? a fixed piece of information sent across a network
TCP/IP? software that makes Internet communication possible
Internet Service Provider (ISP)? an organization that provides access to the Internet
Computers access information from? You request data from an Internet server The request is divided into packets The packets are routed from your LAN to the Internet backbone The packets are routed from the Internet backbone to the destination server
Six elements are? Computer Operating system TCP/IP Client software Internet connection Internet address
Dial-up Internet connections? Standard telephone lines and analog modem (rural areas)
Direct Internet connections? High-speed data links , Wireless connections, T and E carriers, LAN connections, Cable modems,Digital Subscriber Line, 4G mobile hotspot
IPv4 stands for? Internet Protocol version 4
IPv6 stands for? Internet Protocol version 6
HTTP stands for? Hypertext Transfer Protocol
HTTPS stands for? Hypertext Transfer Protocol Secure
FTP stands for? File Transfer Protocol
e-mail stands for? Electronic mail
Simple Mail Transfer Protocol (SMTP) used to transfer e-mail messages to others with an outgoing mail server
Post Office Protocol (POP)? used to receive e-mail from an incoming mail server Forces you to download e-mail messages before reading and managing them Current version is POP3
Internet Message Access Protocol (IMAP)? used to receive e-mail from an incoming mail server Allows you to manage e-mail messages while they reside on the server Current version is IMAP4
Types of domains are? com,edu, net, org, mil, gov, int , org
What is the .com domain? commercial or company sites
What is the .int domain? international organizations (rarely used)
What is the .net domain? network sites, including ISPs
What is the .edu domain? educational institutions, typically universities
What is the .gov domain? U.S. civilian government
What is the .mil domain? U.S. military
What is the .org domain? organizations; originally clubs, associations and non-profit groups; currently, various types of organizations
Domain name server a server on the Internet that resolves domain names into IP addresses
Reverse DNS the process of resolving IP addresses into domain names
Virtual domain a hosting service that allows a company to host its domain name on a third-party ISP server
Shared domain a hosting service that allows multiple entities to share portions of the same domain name
Crowdsourcing outsourcing a task to an undefined group of people or community to obtain and analyze large amounts of data
Cloud computing a paradigm in which users access software and services remotely over the Internet
Software as a Service (SaaS) another name for cloud computing
Problems with cloud computing Connectivity Speed Lockout
Advantages to cloud computing Flexibility Scalability Cost reduction
Created by: Nick2015
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