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Running head: DISCUSSION POSTS
A network model is a database architecture that illustrates how communication occurs
among the modules of a network. In a network model objects are perceived as nodes and the
connections between the objects are portrayed as arcs. In 1969 Conference on Data Systems
Languages (CODASYL) database task group published a network model that was modelled
by Charles Bachman. Subsequently, in 1971 there was a second publication of the network
model which became the source for most applications. Additionally, in the early 1980s more
updates were carried out enabling the implementation of ISO specification but having
minimal effect on products (Charles, 1973).
The four layers of the TCP/IP model include the network interface layer (Link layer),
internet layer, transport layer, and application layer. The link-layer carries out electrical
signaling, flow control, error recognition, and node addressing. The internet layer takes care
of the routine activities and identifies network systems as well as interconnect nodes on those
networks. The transport layer resolves overall host to host communication through
categorizing data into more controllable pieces for the lower layers. Likewise, this layer is
accountable for the feedback method which can be either dependable or undependable. The
application layer ensures effective communication between applications on a network by
handling requests for services from applications. Similarly, this layer handles activities such
as encryption, translation to machine-independent languages, and discarding of
communication sessions between network systems (Sachisthal et al., 2019).
A network protocol is a set of rules that governs how information is transmitted from
one device to another in a network system. Principally, they enable communication between
interconnected devices. Network protocols handle large scale processes and categorize them
into small manageable tasks. This happens at all the level of network and every task should
comply at each level to accomplish the pending larger task. Furthermore, the network
protocol enables the communication between interconnected devices (Cloudflare, 2020).
Charles W. Bachman (1973). The Programmer as Navigator. ACM Turing Award lecture,
Communications of the ACM, Volume 16, Issue 11, 1973,…
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