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Which layer ofthe TCP/IP stack promotes the reliable transmission of data?
Correct Answer: D
TheTransport layerof theTCP/IP stackis responsible for thereliable transmission of databetween hosts. * Protocols:IncludesTCP (Transmission Control Protocol)andUDP (User Datagram Protocol). * Reliable Data Delivery:TCP ensures data integrity and order through sequencing, error checking, and acknowledgment. * Flow Control and Congestion Handling:Uses mechanisms likewindowingto manage data flow efficiently. * Connection-Oriented Communication:Establishes a session between sender and receiver for reliable data transfer. Other options analysis: * A. Link:Deals with physical connectivity and media access. * B. Internet:Handles logical addressing and routing. * C. Application:Facilitates user interactions and application-specific protocols (like HTTP, FTP). CCOA Official Review Manual, 1st Edition References: * Chapter 4: Network Protocols and Layers:Details the role of the Transport layer in reliable data transmission. * Chapter 6: TCP/IP Protocol Suite:Explains the functions of each layer.