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Todya waz my paper most of objective from layers subjective is as under:- Consider a dialup modem for modulating digital data to analog signals suggest the most efficient technique used for modulation? Briefly describe DTE and DCE In the radio transmition when we  convert anolge signal in to the digital signal which senior is required explain

CS601 Solved Current Paper Q)) define Null Modem? Answer:A null modem cable allows you to connect your PC to another nearby PC or serial device using its modem protocol. A popular use of null modem cables is for setting up "head-to-head" gaming between two players at different computers in the same room. (A null modem cable is limited to 30 feet in length.) Q))What is the Band width of Fm? Answer: 88 MHz-108MHz Q))NRZ and RZ which require more band width Aswer:RZ using twice the bandwidth to achieve the same data-rate as compared to NRZ format. Q)) How to calculate Bit rate and Baund rate? Answer)) (((Bit Rate))) The speed of the data is expressed in bits per second (bits/s or bps). The data rate R is a function of the duration of the bit or bit time (TB) R=1/TB (((Baund rate))) Baud rate refers to the number of signal or symbol changes that occur per second. A symbol is one of several voltage, frequency, or phase changes. R = baud rate x log2S = baud rate x 3.32 log10S

Shared by Zakia Siddique Today Paper Total Questions = 26 Total Marks = 40 Total MCQs of 1 Mark = 20 Short Subjective Question of 2 Marks = 2 Subjective Question of 3 Marks = 2 Subjective Questions of 5 Marks = 2 Q no 1)Write the Attributes of FSK,PSK and QAM?(3) Qno2) Draw Manchesters encoding of "01100"?(3) Qno3)Explain PSK and Explain its unit of Measurement ? Qno4)DTE and DCE explain whole steps ? Qno) RZ and NRZ explain and why RZ need hight BW? Qno6) bhooul gaya :(  Best of luck !!!

Shared by Tahir Mehmood Today my paper CS 601 Q. Sketch the Manchester’s encoding for the stream “01100”. Q. Calculate bit rate & bund rate for an analog signal transmitting 500 signals per sec, where each signal element carries 5 bit. Q. In mobile communication which kind of Signal conversion mechanism is used and why? Q. Why RZ requires more bandwidth than NRZ ? etc... Just remember these questions. Many MCQs were from OSI reference model layers mostly from layer 1 to 5 and also there were many questions from Signals and Signal Conversion methods and a few were from remaining course.  

Shared by Hira Ghumam Mine todays paper of cs601 Mcqs (20 marks) Q21. Define the Audio frequency spectrum?(2 marks) Answer: Audio frequency spectrum is measured in Hertz's (Hz) and tells the range of audible audio. The human hearing range is usually 20-20000Hz, but especially the audibility of the top end of the spectrum declines with age. Most software analyzers measure between 0 Hz and 16000-24000kHz Q22.Explain the function of  DCE,DTE in the network?(2 marks) Answer: DTE(Data terminal Equiment) DCE(Data circuit terminating Equiment ) Q23.we have an audio signal with a BW of 10HZ .what is the BW needed if we Modulate the signalusing AM? (3 marks) Answer: AM=Twice of band width BW=Band width BW=2*10HZ=20KHZ AM=20KHZ Q24.write the degree when the cycle is complete in the frequency modulation? 1)Full cycle 2)Half cycle 3)Quarter cycle              (3 marks) Q25.In the radio transmition when we  convert anolge si...

AOA,  todays paper of cs601 was so much easy but sorry i could't save it. i just can share wht i remember. mostly question were from last 3 lec. focous on FSM ,ASK topic & D to A converter , A to D converter . Question of 5 mark was from 21st lec about PCM and data conversion with diagram. numerical were from bandwidth topic and one question of 2 mark for formula for FSM method of calc of bandwidth. Objective which i remember : A ______________ converts an analog signal into a digital signal. Asynchronous transmission is ___________  which modulation technique involves tribits, eight different phase shifts, and one amplitude? In mesh topology, if there are five nodes then there will be _______ links.  Data chunk-at data linklayeriscalled ...... Asynchronous transmissions sy kch question tha. 2mark ka.

Cs 601 my paper questions fully difficult paper all the students should focus a lot on this book mcq were totally out of past papers questions were very tough in which scheme the bandwidth seems to be higher 2 marks a company uses NRZ scheme what problems it will face 3 marks calculate bandwidth in KHz if signal per cycle = 6sec . 3 marks calculate bandwidth for AM in MHz if frequency and baud rate are equal in this case what will be frequency starting from 8.. 5 marks which system you will prefer in the polar type if there a large no. of computers in a network. 5 marks