Tạo ra một giấy chứng nhận kỹ thuật số liên quan đến một người sử dụng xác định một đặc điểm cụ thể cá nhân cho một bên thứ ba đáng tin cậy, vấn đề giấy chứng nhận. Truyền thông kỹ thuật số Đề cập đến bất kỳ loại thông tin liên lạc, trong đó dữ liệu được thể hiện dưới hình thức các số nhị phân. | Digital Certificate An electronic passport that consists of a numerical pattern value or key and used for personal identification. Creating a digital certificate involves a user identifying a specific personal trait to a trusted third party which issues the certificate. Digital Communication Refers to any type of communication in which data are represented in the form of binary digits. Digital Signature A security authorization method in which a user signs a document so that the document s authenticity can be confirmed by checking the signature. A digital signature proves a message was not modified. Digital Subscriber Loop The formal term used to denote the local loop which is the circuit between a customer s premise equipment CPE and the telco s equipment. DIN Connector Similar to a DB connector but is circular instead of rectangular and typically used to connect a keyboard to a computer DIN stands for Deutsche Industrie Norm a German industrial standard. Directed IR A point-to-point infrared transmission method that requires an unobstructed line-of-sight connection between transmitter and receiver. It is basically a point and beam medium. Discard Eligibility The name of a field in a frame relay frame which if set to 1 by an end node denotes that the frame can be discarded in the presence of congestion Discarded frames will then be retransmitted at a later time when congestion has subsided. Distance-vector Algorithm A routing algorithm that determines the distance between source and destination nodes by calculating the number of router hops a packet traverses en route from the source network to the destination network. An example of a distance- vector algorithm is the Bellman-Ford algorithm. Distributed System Computers that are linked together to provide in a transparent manner the required computing resources and information processing needs of an entire organization. Distributed systems bear the greatest resemblance to computer networks. DLCI An acronym for .
