P
PCM | PCM (Pulse Code Modulation) is a technique for |
| converting analog audio signals into digital form for |
| transmission. |
PING | Packet Internet Groper, a utility used to determine |
| whether a specific IP address is accessible. It |
| functions by sending a packet to the specified address |
| and waits for a reply. It is primarily used to |
| troubleshoot Internet connections. |
PPPoE | |
| specification for connecting the users on an Ethernet |
| to the Internet through a common broadband medium, |
| such as DSL or cable modem. All the users over the |
| Ethernet share a common connection. |
Protocol | Communication on the network is governed by sets of |
| rules called protocols. Protocols provide the guidelines |
| devices use to communicate with each other, and thus |
| they have different functions. Some protocols are |
| responsible for formatting and presenting and |
| presenting data that will be transferred from file server |
| memory to the file server’s net work adapter Others |
| are responsible for filtering information between |
| networks and forwarding data to its destination. Still |
| other protocols dictate how data is transferred across |
| the medium, and how servers respond to workstation |
| requests and vice versa. Common network protocols |
| responsible for the presentation and formatting of data |
| for a network operating system are the Internetwork |
| Packet Exchange (IPX) protocol or the Internet |
| Protocol (IP). Protocols that dictate the format of data |
| for transferors the medium include |
| Carrier Sense Multiple Access with Collision Detection |
| (CSMA/CD), implemented as |
| FDDI, or Ethernet. The Router Information Protocol |
| (RIP),a part of the Transmission Control |
| Protocol/Internet Protocol (TCP/IP) suite, forwards |
| packets from one network to another using the same |
| network protocol. |
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