Bit-rate

Question 1
A device is sending out data at the rate of 2000 bps. How long does it take to send a file of 1,00,000 characters ?
A
50
B
200
C
400
D
800
Computer-NetworksBit-rateUGC NET CS 2015 Dec - paper-3
Question 1 Explanation: 
Explanation: 1 character ------- 8-bits
1,00,000 character ---------- 8,00,000 bits
2000 bits--------- 1 second
1 bit ---------- 1/2000 seconds
8,00,000 bits ---------(1/2000)* 8,00,000
= 400 seconds
Question 2
A multiplexer combines four 100-Kbps channels using a time slot of 2 bits. What is the bit rate?
A
100 Kbps
B
200 Kbps
C
400 Kbps
D
1000 Kbps
Computer-NetworksBit-rateUGC NET CS 2016 July- paper-2
Question 2 Explanation: 
Frame duration= 1/50,000
= 20 sec
Frame size= No.of bits per frame
= 8 bits
Bit Rate= Frame Rate * No.of bits per frame
= 50000*8
= 400 kbps
There are 2 questions to complete.

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