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Subject Code: CS601 Old Data Communication Final-term Subjective Paper Shared By:  Umair Mehmood Note : in this paper just provide Subjective Question. Question 1:  How networks are part of our daily life? Give two instances Question 2 :  Name any two main/basic telephone services that may use for communication through telephone Question3:  Discuss the role of flow control technique in context of Data Link Layer Question4:  What are the names of sub-layers of Data Link Layer Question5:  How can you achieve better synchronization in Manchester Encoding technique Question6:  Suppose XYZ Company wants to maximize its performance to provide quick services to its clients. Discuss the telephone service hierarchy It should follow Question 7:  Find LRC of the given block: 10010011 01100111 01111000 00011100 Question 8:  Following are the abbreviations of what? ARP, RARP, ICMP Question 9:  What are the consequences of n...

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Topic Discussion CS601 GDB:::::::::::::::::::::::::::::::::::::::::: Suppose a national security agency wants to connect local networks of its two offices using some transmission media. As they are required to transmit very sensitive information over the transmission media so security and reliability of the information are the critical issues in this scenario. They have different options i.e. wireless and wired (coaxial, fiber optics and etc.) media to connect these offices. You are required to suggest a suitable transmission media to directly connect these offices and discuss how will your suggested media fulfill their requirements? Solution Twisted pair is the most common, because it is cheapest. Shielded twisted pair is similar, but has a foil around the outside of the pairs to prevent electrical noise, which is good if the cable has to pass over floresent lights. Coaxial is getting outdated, because usually requires a token ring topology. Twisted pair uses a Star topology wh...

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