A packet is a small data package used in transmitting information on the interInternet from the source to the destination.

Ping is a diagnostic utility used to determine whether a domain name or IP Address is available and/or responding to requests on the Internet. The ping utility sends information, in the form of a packet, to the Internet Address that you are running the utility for. If the information is returned, it is an indicator that the computer at the specified IP Address or domain name is active and can receive and send information on the Internet. If there is a loss of data, or if no data is returned, it is typically an indicator that the computer at the IP Address or domain name being queried is not active or functioning correctly.

POP, or post office protocol, is the name of a method for retrieving emailelectronic mail from the Internet, which functions as a client/server protocol. Email is stored on a mail server until a user connects to the server with an email client (program) to retrieve the email. Whereas SMTP is the protocol commonly used for sending mail, POP is the method commonly used for retrieving mail. POP3 is the most recent version of post office protocol.

See below.

The Postmaster is typically an individual responsible for administering electronic mail accounts on a mail server with the ability to establish user names and passwords and set account defaults and preferences.

A primary server is one of the Domain Name Servers associated with a pair of name servers. Generally, Domain Name Servers are grouped in pairs, with a primary and a secondary server. The primary server is responsible for updating the secondary name server with any new zone file information or modifications that have been submitted by the DNS administrator.

Propagation time is the amount of time required for a domain name's registration and/or changes to DNS Information to be distributed throughout the Domain Name System. For example, new .com, .net and .org domain name registrations typically require 24-72 hours to be updated on and propagate throughout the Internet's 13 root servers.

A protocol is a set of standards or rules that state how data is to be communicated between end points in a network. A protocol is similar to using a standardized language, or method. Examples of commonly used protocols on the Internet include TCP/IP, HTTP and FTP.