CS601 Fall 2011 Final Term Feb 2012 – VU Current Paper – 08 Feb 2012

What are types of twisted pair cable ?n (2)

Define DDS and DS . what is different between DDS and DS ? (5)

62 bit transmit on medium per second what is the bit rate and bit interval ? (5)
ABC organization use 70bit for voice and 52 bit s for data Which mode use of multiplexing? (3)
What is the bit rat of code hamming and some thing about error (5)