What is PDC?

PDC can refer to several technologies, making it ambiguous without more context. Here are a few possibilities: 1. **Primary Domain Controller (PDC):** In a Microsoft Windows Server domain, the PDC is the server that holds the authoritative copy of the directory database (Active Directory). It authenticates users, manages security policies, and replicates changes to other domain controllers. In modern Active Directory environments, the role of the PDC is less critical due to multi-master replication. 2. **Packet Data Convergence Protocol (PDCP):** This is a protocol used in 3G and 4G (LTE) mobile networks. It performs functions such as header compression, security (encryption and integrity protection), and radio bearer establishment. It is part of the radio interface protocol stack. 3. **Parallel Data Collection (PDC):** This refers to a methodology or tool used in data analysis to collect information from multiple sources simultaneously in order to improve efficiency and decrease collection time. PDC is often used in research and in some forms of digital marketing. The precise meaning of "PDC" depends heavily on the context in which it is used.