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Questions and Answers
What protocol is responsible for reliable, simultaneous, full duplex connection?
What protocol is responsible for reliable, simultaneous, full duplex connection?
- TCP (correct)
- Network Layer
- UDP
- Data Link Layer
Which protocol is less robust than TCP and can be used by applications that do not require reliability at the Host-to-Host layer?
Which protocol is less robust than TCP and can be used by applications that do not require reliability at the Host-to-Host layer?
- Network Layer
- TCP
- UDP (correct)
- Data Link Layer
Which layer of the TCP/IP model is also called the Host-to-Host Layer?
Which layer of the TCP/IP model is also called the Host-to-Host Layer?
- Network Layer
- Transport Layer (correct)
- Application Layer
- Data Link Layer
What does the term 'reliable' mean in the context of TCP?
What does the term 'reliable' mean in the context of TCP?
Which layer of the TCP/IP model provides applications that use TCP and UDP?
Which layer of the TCP/IP model provides applications that use TCP and UDP?
Which protocol operates at the Application Layer for File Transfer?
Which protocol operates at the Application Layer for File Transfer?
Which layer encapsulates the data transmitted by a host in the TCP/IP model?
Which layer encapsulates the data transmitted by a host in the TCP/IP model?
What is encapsulated by the Transport Layer Protocol in the TCP/IP model?
What is encapsulated by the Transport Layer Protocol in the TCP/IP model?
What happens when the encapsulated data is received by the remote host at the Receiving end?
What happens when the encapsulated data is received by the remote host at the Receiving end?
Which model was first implemented, giving rise to the OSI model and TCP/IP model?
Which model was first implemented, giving rise to the OSI model and TCP/IP model?
How many layers does the OSI model have?
How many layers does the OSI model have?
Which model supports only connection-oriented communication in the Transport layer?
Which model supports only connection-oriented communication in the Transport layer?
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Study Notes
TCP/IP Model
- TCP (Transmission Control Protocol) is responsible for a reliable, simultaneous, full duplex connection.
Protocol Comparison
- UDP (User Datagram Protocol) is less robust than TCP and can be used by applications that do not require reliability at the Host-to-Host layer.
TCP/IP Layers
- The Transport Layer is also called the Host-to-Host Layer.
TCP Reliability
- In the context of TCP, 'reliable' means ensuring that data is delivered in the correct order and retransmitting lost packets.
Application Layer
- The Application Layer provides applications that use TCP and UDP.
- FTP (File Transfer Protocol) operates at the Application Layer for file transfer.
Data Encapsulation
- The Internet Layer encapsulates the data transmitted by a host in the TCP/IP model.
- The Transport Layer Protocol encapsulates the data to be transmitted, adding a header with source and destination port numbers.
Data Reception
- When the encapsulated data is received by the remote host, the receiving end decapsulates the data, removing the headers and transporting the data to the receiving application.
Model History
- The TCP/IP model was first implemented, giving rise to the OSI model and TCP/IP model.
OSI Model
- The OSI model has 7 layers.
- The OSI model supports only connection-oriented communication in the Transport layer.
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