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OSI Model Study Guide: Layers, Protocols, and Functions, Exams of Nursing

Abilene Christian University (ACU)Nursing

This study guide provides a comprehensive overview of the osi model, covering its seven layers, associated protocols, and functions. It includes detailed explanations of each layer's role in network communication, along with examples and practical applications. The guide also explores the relationship between the osi model and the tcp/ip model, highlighting key similarities and differences. This resource is valuable for students and professionals seeking to understand the fundamental principles of network architecture and communication.

Typology: Exams

2023/2024

Available from 12/08/2024

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OSI Model Study Guide correctly
answered 2023
OSI Layers in order - correct answer Layer 1:Phsyical
Layer 2:Data-link
Layer 3:Network
Layer 4:Transport
Layer 5:Session
Layer 6:Presentation
Layer 7:Application
Three protocols for Application - correct answer Finger
Gopher
AFP
Two Protocols for Presentation - correct answer AFP
ICA
Two Protocols for Session - correct answer ASP
RPC
Two Protocols for Transport - correct answer TCP
RDP
Two Protocols for Network - correct answer EGP
RIP
Two Protocols for Data-link - correct answer ARP
PPP
Two Protocols for Physical - correct answer N/A
3 Devices associated with the Physical layer - correct answer Sockets/Connectors,
Cable Modem
3 Devices associated with the Data-link layer - correct answer Switches and Bridges
3 Devices associated with the Network layer - correct answer Router,
How is the OSI model related to the TCP-IP Model - correct answer The internet
application layer includes the OSI application layer, presentation layer and most of the
session layer.
pf3

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OSI Model Study Guide correctly

answered 2023

OSI Layers in order - correct answer Layer 1:Phsyical Layer 2:Data-link Layer 3:Network Layer 4:Transport Layer 5:Session Layer 6:Presentation Layer 7:Application Three protocols for Application - correct answer Finger Gopher AFP Two Protocols for Presentation - correct answer AFP ICA Two Protocols for Session - correct answer ASP RPC Two Protocols for Transport - correct answer TCP RDP Two Protocols for Network - correct answer EGP RIP Two Protocols for Data-link - correct answer ARP PPP Two Protocols for Physical - correct answer N/A 3 Devices associated with the Physical layer - correct answer Sockets/Connectors, Cable Modem 3 Devices associated with the Data-link layer - correct answer Switches and Bridges 3 Devices associated with the Network layer - correct answer Router, How is the OSI model related to the TCP-IP Model - correct answer The internet application layer includes the OSI application layer, presentation layer and most of the session layer.

End to end transport layer includes close function of the OSI session layer. Internet layer is a subset of the OSI network layer. Link lay includes OSI data link layer What are the layers of the TCPIP model? - correct answer Application, Transport, Internet, Netowork Access Function of the Physical Layer - correct answer Detects and accepts signals, passes them to the data link layer, sets data transmission rates, monitors data error rates Function of the Data-Link Layer - correct answer This layer controls the flow of information. Function of the Network Layer - correct answer Is a system for assigning unique identification numbers to network devices. Function of the Transport Layer - correct answer This layer accepts data, establishes a connection before transmitting data, allows receiving node to check arriving data vs sent data, breaks large chunks of data up to transmit quicker, then reassembles the data to identify order of data issue. Function of the Session Layer - correct answer The session layer is the connection for ongoing data exchange between two parties. (maintaining communications between to network nodes) EX. Connection between web browser client(node 1) and web server(node 2) Function of the Presentation Layer - correct answer Accepts data from the application layer and processes the data to format it into something that can be presented. Function of the Application Layer - correct answer Application interprets the data sent from the network which interprets the application request. (facilitating communication between software applications and lower layer network services) Request content -> return content in required format -> web browser collects and displays data What is a PDU? - correct answer A protocol data unit (PDU) is an open-system interconnection (OSI) term used in telecommunications that refers to a group of information added or removed by a layer of the OSI model. Where is PDU used? - correct answer First four layers What are the two transport layer PDUs called? - correct answer segment for TCP or the datagram for UDP. What are the upper layers? - correct answer 5-