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Problem
1. Explain the term Switching. Describe the following Switching Mechanisms
a) Circuit Switchingb) Packet Switchingc) Message Switching
2. Define the terms Error Detection and Correction with respect to Data Transmission. Also explain the following concepts with respect to Error Detection and Correction
a) Parity Bitsb) Single Bit Error Correction Techniques
Which layer is responsible for coordinating communication between systems Ans) The Session layer performs the following: Responsible for establishing and maintaining connections
Consider a signal x(t) = 10 cos(2πfct + 4 cos 2πfmt). Assume frequency modulation. The message frequency fm = 2:3 kHz. Calculate the modulation index and find the bandwidth when
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Q. Explain about Twisted-Pair Cable? - Two conductors surrounded by insulating material - One wire utilize to carry signals and other used as a ground reference - Twistin
Connections in ATM are known virtual circuits or virtual channels These are known virtual, since connections are created in ATM by starting values in memory locations (tables) in A
Q. Multimode for transmitting optical signals? - Multiple beams from light source travel through core at different paths - Multimode step-index fiber Density remains
Define Bandwidth and Latency? Network performance is calculated in Bandwidth (throughput) and Latency (Delay). Bandwidth of a network is given by the number of bits that can be
Question : (a) Explain the ‘RAD' methodology with a suitable diagram. (b) One of the activities to be performed during Rapid Application Development is Rapid Business Analys
Simple Mail Transfer Protocol ( SMTP) SMTP is the principal application layer protocol for internet electronic mail. It uses the reliable data transfer service of TCP to
Latency : In interconnection networks a variety of nodes may be at dissimilar distances depending upon the topology. The network latency differs to the worst-case time wait for a u
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