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Old Paper 5 - General - Other by Sasken

Details of Old Paper 5 - General - Other by Sasken conducted by Sasken for job interview.
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SASKEN COMMUNICATION INDIA

There are 10 ques. in three sections each, thus total 30 ques. 4 choices were given. 1 mark for each ans. no negative marking.
1 if phase of different frequency components of signal vary linearly then they all reach destination with delay
1) delay also vary linerly.
2) no change in delay,
3)

2 what is the relation in dbm and db?
1) same
2) dbm is 10 times db
3) db is 10 times dbm
4) db is relative measure and dbm is absolute measure.

3 difference in PSK and QPSK
a. slower sample rate
b. greater sample rate
c. slower bit rate
d. greater bit rate.

4 what is the main problem with power line communication
a. high audio signal generation
b. seperation of modulating and career signal
c. (something) low pass filtering

5 a signal is to be transmitted 1000km long distance sending 10 mbps . if signal consists of 1000 bits/package and takes 5 microsecs. to transmit then how much data is to be send such that line gets fully filled.
a. 100
b. 500
c
d.1000

6 if a process is wide sense stationary then
a. it,s probability density function is also wss
b. power spectral density is wss
c. it,s mean constant and auto correlation function depends only on time diff. t1-t2.
d.

7 for intelligent sound signal transmission
a. low pass filter of 1.8khz is to be used.
b. hpf of 1.8khz
c.
d.

q.8 if a 32 bit number in fractional form is to be converted into float then it is multiplied with
a. 2^31
b. 1/(2^31 - 1)
c. 2^31 -1
d.

9 if signal is sampled at 8 khz and the signal of 1 khz is transmitted then


q.1 char const *p=,p, then which of below is true
a.**P =
(this question u can get from freshersworld sample paper)

q.2 recursive function
count(n){
if count