NET140 Chp 1 set2

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open source

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Software with publicly available code for use and modification

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SMTP (Simple Mail Transfer Protocol)

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An application layer protocol that moves messages between email servers

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POP3 (Post Office Protocol, version 3)

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Retrieves email from a mail server, downloading and deleting it from the server

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IMAP4 (Internet Message Access Protocol, version 4)

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A protocol that lets users read and organize emails stored on the server

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DNS (Domain Name System)

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A system for mapping domain names to IP addresses

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DBMS (Database Management System)

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Software on a database server for managing, modifying, and retrieving data

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SQL (Structured Query Language)

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A language used to interact with and configure database objects and data

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FTP (File Transfer Protocol)

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An application layer protocol for sending/receiving files via TCP/IP

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FTPS (FTP Secure)

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A secure version of FTP using SSL/TLS encryption

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SFTP (Secure File Transfer Protocol)

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A secure file transfer protocol that operates with SSH