X.25 protocol encapsulates the following layers A. Network B. Datalink C. Physical D. All of the above E. None of the above

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vivek

  • Sep 21st, 2005
 

X.25 encapsulates layer 2 i.e data link layer

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Mahesh

  • Oct 3rd, 2005
 

Answer is D. All of the above
Hint: X.25 encompasses the first three layers of the OSI 7-LAYERED ARCHITECTURE as defined by the INTERNATIONAL STANDARDS ORGANIZATION (ISO).

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Ranjitha

  • Feb 1st, 2007
 

Ans: A (refer Computer Communication Networks by C.Murali)

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srikanth gv

  • Apr 24th, 2007
 

x.25 encapsulates  appln, data link n n/w layers..

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