12. Describe the Multiplexing techniques for digital signal transmission. Multiplexing is a technology to transfer digital or analog data in daily use devices like telephone and television. Here, we discuss the various multiplexing technologi…
قراءة المزيدExplain about OSI reference model. 11. Explain about OSI reference model. Also describe other network models. The OSI, or Open System Interconnection, model defines a networking framework to implement protocols in seven layers. Control is …
قراءة المزيد9. Discuss the significance of DNS. The DNS translates Internet domain and host names to IP addresses. DNS automatically converts the names we type in our Web browser address bar to the IP addresses of Web servers hosting those sites. …
قراءة المزيد10. Explain about voice over IP. VoIP stands for Voice over Internet Protocol. VoIP is a technology that allows telephone calls to be made over computer networks like the Internet. VoIP converts analog voice signals into digital data packets a…
قراءة المزيدDiscuss the features of cellular telephone. Accessories — Manufacturers offer a number of accessories that can make phones even more convenient to use, such as hands-free options (headsets, ear buds, bluetooth hands free devices), extra batteri…
قراءة المزيد5. What is meant by frame relay? Frame relay is a data link network protocol designed to transfer data on Wide Area Networks (WANs). Frame relay works over fiber optic or ISDN lines. The protocol offers low latency and to reduce overhead, does …
قراءة المزيد7. Explain about congestion control. Congestion is an important issue that can arise in packet switched network. Congestion is a situation in Communication Networks in which too many packets are present in a part of the subnet, performance degr…
قراءة المزيد8. Discuss about Application layer security. Application Layer Security : Application layer security refers to methods of protecting Web applications at the application layer (layer 7 of the seven-layer OSI model) from malicious attacks tha…
قراءة المزيدExplain about TDM. Time Division Multiplexing processes information of different transmitters successively in defined time segments for transmission over one channel. Time Division Multiplexing is differentiated in synchronous and asynchronou…
قراءة المزيدDiscuss about SONET Synchronous optical networking (SONET) is a standardized digital communication protocol that is used to transmit a large volume of data over relatively long distances using a fiber optic medium. With SONET, multiple digital …
قراءة المزيدDescribe the importance of the physical layer. The physical layer, the lowest layer of the OSI model, is concerned with the transmission and reception of the unstructured raw bit stream over a physical medium. It describes the electrical / opti…
قراءة المزيدExplain about TDM. Time Division Multiplexing processes information of different transmitters successively in defined time segments for transmission over one channel. Time Division Multiplexing is differentiated in synchronous and asynchronou…
قراءة المزيدDiscuss about SONET Synchronous optical networking (SONET) is a standardized digital communication protocol that is used to transmit a large volume of data over relatively long distances using a fiber optic medium. With SONET, multiple digital …
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