Web page code that defines how a page appears in the web browser by tp2z42o0


									Protocol             Description
IPX / SPX (NWLink)   Internetwork Packet Exchange/Sequenced Packet Exchange. The
                     default network protocol for Novell Netware prior to NetWare 5.
                     (Current default is TCP/IP). NWLink is the Microsoft version of
NETBEUI / NetBIOS    These two terms are grouped together by many technical resources,
                     which can be misleading.
                     NetBEUI is the NetBIOS Extended User Interface. A non-routable
                     protocol for early Windows OS.
                     NetBIOS is a provides three services to applications: 1. Name service
                     registration and resolution, 2. Session service (connection-oriented),
                     3. Datagram distribution (connectionless).
                     By definition, NetBEUI uses NetBIOS. However, NetBIOS does not
                     depend upon NetBEUI. For example, NetBIOS services occur over
                     TCP/IP in Windows environments.
TCP / IP             Transmission Control Protocol/Internet Protocol. Part of a set of
                     protocols known as the Internet Protocol Suite. The most commonly
                     used, routable, network protocol. TCP transmits data and IP refers to
                     addressing. Necessary for Internet communication. All protocols
                     below (except DNS) occur over TCP/IP.
SMTP                 Simple Mail Transfer Protocol. SMTP sents email to one or more
                     recipients. Not listed in exam objectives, but of equal importance, is
                     POP3 – Post Office Protocol (v3). This protocol downloads inbound
                     email messages.
IMAP                 Internet Message Access Protocol. Used for accessing email on a
                     remote server from a local client. Whereas POP3 downloads email
                     messages, IMAP instantly accesses email stored on a server.
HTML                 Hypertext Markup Language. Web page code that defines how a page
                     appears in the web browser.
HTTP                 Hypertext Transfer Protocol. Connects local web browser to a web
                     server, typically using port 80.
HTTPS                Hypertext Transfer Protocol (Secure). Combines HTTP and SSL to
                     establish a secure connection. Uses port 443 by default. Web sites
                     using this protocol start with HTTPS:// and usually show a padlock in
                     the browser. Typically used for authentication and ecommerce.
SSL                  Secure Sockets Layer. Secures network traffic by using, among other
                     things, encryption and server authentication. Typically used for
                     authentication and ecommerce. Often replaces telnet for secure
                     remote administration of servers and network devices.
Telnet               Teletype Network. Protocol used in the command-line tool of the
                     same name. Useful for remote administration of servers, clients, and
                     network devices such as routers. Communicates in unsecured plain
FTP                  File Transfer Protocol. Often used to transmit files using an
                     application of the same name. Commonly used to transfer files across
                     the internet between a web server and Windows hosts. Flexible in
                     that file transfers can occur between differing operating systems.
DNS   Domain Name System. A service that resolves host names to IP
      addresses. Web browsers accessing www.cbtnuggets.com
      transparently connect to the IP address that was resolved by a DNS
      server. For example, DNS servers on the Internet resolve
      www.cbtnuggets.com to (Note: this is not really a
      protocol, but I listed it here because it was listed with all the other
      protocols on the exam objectives.)

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