The correct answer is In TCP/IP model, the internet layer is closest to the user.TCP/IP It stands for Transmission Control Protocol/Internet Protocol and is a suite of communication protocols used to interconnect network devices on the internet. TCP/IP is also used as a communications protocol in a private computer network (an intranet or extranet).The entire IP suite -- a set of rules and procedures -- is commonly referred to as TCP/IP. TCP and IP are the two main protocols, though others are included in the suite. The TCP/IP protocol suite functions as an abstraction layer between internet applications and the routing and switching fabric.The Internet Layer of the TCP/IP model aligns with the Layer 3 (Network) layer of the OSI model. Hence, Statement 1 is not correct.It avoids network saturation. Hence, Statement 2 is correct.This is where IP addresses and routing live. TCP enable data flow for monitoring. Hence, Statement 3 is correct.TCP makes communication between server and client. Hence, Statement 4 is correct.When data is transmitted from a node on one LAN to a node on a different LAN, the Internet Layer is used. IPv4, IPv6, ICMP, and routing protocols (among others) are Internet Layer TCP/IP protocols.Layer 3 of the OSI model is called œNetwork. Do not confuse OSIs layer 3 with the œNetwork Access TCP/IP layer, which aligns with layers 1 and 2 of the OSI model.Layer 2 in the DARPA model is the Internet layer, which maps to the network layer of the OSI model. The Internet layer is responsible for packaging, addressing, and routing the data.