Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question 1
(a) Describe the functions of the modulator and source encoder in a digital communications system.
(b) By using appropriate examples, distinguish between the simplex and half duplex mode of communication.
(c) Briefly illustrate what is meant by the physical topology of a network. Given that there are n devices in a network, what is the number of cable links required for the following topologies:
(i) Mesh (ii) Ring (iii) Bus (iv) Star
(d) Identify which layer of the OSI model each of the five functions below is most likely to belong to. It is also possible that one or more of the functions cannot be mapped to an OSI layer. If this is the case, explain why.
(i) Translating between EBCDIC to ASCII (ii) Defining the pin-outs in a connector used to attach to a network cable (iii) Generating error correction codes for packet error correction (iv) Arbitrating between multiple nodes attached to a single medium (v) Providing an interface to a visual packet monitoring program
(e) Why is digital transmission better than analog transmission over a long distance where repeaters are needed in any case? Give two advantages of digital transmission over analogue transmission.
discussion for experiment
Q. Show Elementary Synchronous Machines? The polyphase synchronous machine operates with direct current supplied to the field winding (assumed to be on the rotor, which is usua
Q. For a p-channel JFET in its active region, specify the polarities of voltages and the directions of conventional currents.
Q. A 10-kW, 230-V shunt generator, with an armature-circuit resistance of 0.1 and a field- circuit resistance of 230 , delivers full load at rated voltage and 1000 r/min. If the
Q. Compare in-channel signalling with common channel signalling? Network wide signalling also involves end to end signalling between originating exchange and the terminating ex
Reverse Recovery Characteristics At the end of forward conduction in diode reverse current flows for a short time. The device doesn't attain its full blocking capabili
(a) "Pulse Code Modulation (PCM), as used in telephony, samples a signal at 8 kHz using 256 quantization levels". i. Outline how this scheme works with the help of sketches and,
derivation for two watt meter method
(a) Illustrate the concept of Part Families ? (b) Explain briefly the general process to solve the problem of grouping the parts into families.
One battery having of three cells in series. External resistance is 5 Ω E.m.f each cell is 1.5V and internal resistance is 0.2?. Measure the current flow and draw the circuit.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd