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Computer Science Engineering (CSE) Exam  >  Computer Science Engineering (CSE) Questions  >  Consider the following statements.I. TCP conn... Start Learning for Free
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Consider the following statements.
I. TCP connections are full duplex
II. TCP has no option for selective acknowledgment
III. TCP connections are message streams
  • a)
    Only I is correct
  • b)
    Only I and III are correct
  • c)
    Only II and III are correct
  • d)
    All of I, II and III are correct
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements.I. TCP connections are full duplexII...
Understanding TCP Connections
TCP (Transmission Control Protocol) is a fundamental protocol used in network communications. Let's analyze the given statements to determine their correctness.
Statement I: TCP connections are full duplex
- TCP connections indeed support full duplex communication. This means that data can be sent and received simultaneously between two endpoints. Each side of the connection can transmit data independently.
Statement II: TCP has no option for selective acknowledgment
- This statement is incorrect. TCP does have a mechanism for selective acknowledgment (SACK), which allows the receiver to acknowledge specific segments of data, rather than just the last contiguous segment received. This feature enhances efficiency, especially in environments with a lot of packet loss.
Statement III: TCP connections are message streams
- This statement is also correct. TCP treats the data being sent as a continuous stream of bytes rather than discrete packets or messages. This stream-oriented nature allows TCP to manage data flow more effectively, ensuring that data is delivered in order and without duplication.
Conclusion
Based on the evaluation of the statements:
- Only Statement I is correct: TCP connections are indeed full duplex.
- Statement II is incorrect: TCP does support selective acknowledgment.
- Statement III is correct: TCP connections function as message streams.
Thus, the correct answer is option 'A', as it accurately reflects the validity of the statements regarding TCP.
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Community Answer
Consider the following statements.I. TCP connections are full duplexII...
Transmission Control Protocol (TCP):
  • TCP is a reliable connection-oriented protocol that can be used in any application where reliability is important. 
  • TCP explicitly defines to provide a connection establishment, data transfer, and connection teardown phases to provide a connection-oriented service.
  • TCP connections are full-duplex
  • TCP uses GBN and SR protocols to attain reliability. Therefore it has selective acknowledgment. 
  • It provides end-to-end communication due to the port number of source and destination. 
  • TCP connections are byte streams. 
     
Hence statement I is correct
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Consider the following statements.I. TCP connections are full duplexII. TCP has no option for selective acknowledgmentIII. TCP connections are message streamsa)Only I is correctb)Only I and III are correctc)Only II and III are correctd)All of I, II and III are correctCorrect answer is option 'A'. Can you explain this answer?
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