Category: Letter P

  • Personal Communications Services (PCS)

    Personal Communications Services is a general term for digital cellular phone technologies that are used for personal wireless mobile communication.

  • Physical Layer

    Physical Layer

    Physical Layer is the first Layer (or the PHY layer) of the Open Systems Interconnection reference model, also known as the OSI Model or the Seven Layer Model.

  • Packet Filtering

    Packet Filtering

    Packet Filtering is the process of controlling the flow of packets based on packet attributes such as source address, destination address, type, length, and port number.

  • Primary Domain Controller (PDC)

    Primary Domain Controller (PDC)

    Primary Domain Controller is a Microsoft Windows NT domain controller that contains the master copy of the Security Account Manager (SAM) database.

  • Primary Name Server

    Primary Name Server

    Dive deep into the world of Primary Name Servers, understanding their critical role in DNS, differences from secondary servers, and best practices.

  • Private Branch Exchange (PBX)

    Private Branch Exchange (PBX)

    Private Branch Exchange, also known as PBX, is a telephone switch at the customer premises that supports multiple independent telephone extensions.

  • Patch Cable

    Patch Cable is a short cable, usually unshielded twisted-pair (UTP) cabling, that connects a port on a patch panel to a port on a hub or a switch.

  • Patch Panel

    Patch Panel

    Patch Panel is a rack-mounted panel with a series of connectors that provides a branching-out point for network cabling to leave the wiring closet and make horizontal runs to wall plates in the work areas.

  • Post Office Protocol version 3 (POP3)

    Post Office Protocol version 3 (POP3)

    Explore the ultimate guide to POP3: Post Office Protocol version 3. Learn about its history, functionality, advantages, disadvantages, and more!

  • ping

    ping

    Unlock the secrets of the Ping command—a must-know tool for network diagnostics. Learn how it works, options, examples, security risks, and alternatives.

  • Packet-switching Services

    Packet-switching Services

    Packet-switching Services are telecommunications services provided by telcos and long-distance carriers that route packets of data between local area networks (LANs) in diverse geographical locations to form a wide area network (WAN).

  • Plain Old Telephone Service (POTS)

    Plain Old Telephone Service (POTS)

    POTS stands for Plain Old Telephone Service and it is the basic analog telecommunications service provided by a local telco.