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NET2050 Open System Interconnection

Intermediate · 1 credit · BIT - Business, Admin, Finance and IT

Description
Students develop knowledge of the Open System Interconnection (OSI) reference model and its use as a conceptual framework for analyzing network communication tasks. They examine the OSI reference model characteristics, the functions of each of its seven layers and how data moves between layers of the reference model when computers establish a network connection.
Prerequisite
None
Parameters
Designed to be delivered in conjunction with other intermediate level courses in computer networking systems. Schools have the option of delivering courses in conjunction with one or more project courses if they wish to extend learning and/or address other specific technologies. Access to an appropriate computer work station, the Internet, networking hardware, software and tools, and consumable supplies. Access to instruction from an individual with specialized knowledge and skills in computer networking. Primary focus should be placed on the physical, data link, network and transport layers of the OSI reference model, and on the real-world protocols and networking devices that operate at each of these layers. Students model and assume personal responsibility for ethical behaviour in their use of networking technologies and in their access to electronic sources of information. They also demonstrate an understanding of industry-based policies regarding network use and security.

Outcomes The student will:

  • 1 describe the general purpose and structure of the OSI reference model as a conceptual framework for network communication

    • 1.1 explain the purpose of the OSI reference model as a blueprint for designing, implementing and operating network hardware and software

    • 1.2 identify the functions of each of the seven layers of the OSI reference model

    • 1.3 explain and diagram data transfer between layers of the OSI reference model

    • 1.4 explain processes of data encapsulation and de-encapsulation in the OSI reference model

    • 1.5 describe the process of data packet delivery and the function of a data frame

    • 1.6 match network components and connectivity devices to the layers of the OSI reference model at which they operate

    • 1.7 analyze networking tasks with respect to the OSI reference model

  • 2 explain and illustrate how hardware components, network protocols and encapsulation defined in lower layers of the OSI reference model move data across the network; i.e., physical layer data link layer, network layer, transport layer

    • 2.1 identify physical layer components and their function including:

      • 2.1.1 cabling

      • 2.1.2 connectors

      • 2.1.3 network interface cards

      • 2.1.4 repeaters

      • 2.1.5 hubs

    • 2.2 describe data signalling at the physical layer

    • 2.3 identify Ethernet standards for media type and maximum segment length

    • 2.4 demonstrate ability to:

      • 2.4.1 select appropriate cables and connectors

      • 2.4.2 select, install and configure a network adapter

      • 2.4.3 terminate an Ethernet network

      • 2.4.4 test for connectivity

    • 2.5 given specific user requirements, do the following:

      • 2.5.1 design physical layer topology and components for a small Ethernet network

      • 2.5.2 create a plan for cabling based on Ethernet standards

    • 2.6 identify data link layer devices and their function; e.g., bridges, switches

    • 2.7 explain the effects of segmentation in switched networks

    • 2.8 identify data link sublayers and their function including:

      • 2.8.1 Logical Link Control (LLC) sublayer

      • 2.8.2 Media Access Control (MAC) sublayer

    • 2.9 outline Institute of Electrical and Electronics Engineers (IEEE) standards for the data link layer

    • 2.10 describe connectionless and connection-oriented services associated with the LLC sublayer

    • 2.11 explain the nature and limitations of physical addressing associated with the MAC sublayer

    • 2.12 explain applications of framing in the transport of data packets

    • 2.13 describe and illustrate the structure of a data frame

    • 2.14 explain the function of frame addressing and frame relay in the transport of data packets

    • 2.15 identify network layer devices and their function including a:

      • 2.15.1 router

      • 2.15.2 brouter

    • 2.16 explain the process of routing and the function of:

      • 2.16.1 routing metrics

      • 2.16.2 routing tables

    • 2.17 distinguish between:

      • 2.17.1 static and dynamic routing

      • 2.17.2 routable and nonroutable protocols

    • 2.18 identify common routing protocols and their function including:

      • 2.18.1 Open Shortest Path First (OSPF)

      • 2.18.2 Routing Information Protocol (RIP)

      • 2.18.3 Novell Netware Link Services Protocol (NLSP)

    • 2.19 compare physical addressing associated with the data link layer and logical addressing associated with the network layer

    • 2.20 identify logical addressing protocols and their functions including:

      • 2.20.1 Internet Protocol (IP)

      • 2.20.2 Internetwork Packet Exchange (IPX)

      • 2.20.3 new protocols for the Internet and other devices

    • 2.21 identify and explain types of error checking performed at the transport layer including:

      • 2.21.1 cyclic redundancy checks

      • 2.21.2 parity bits

      • 2.21.3 checksum calculations

    • 2.22 provide a rationale for flow control, and identify hardware and software solutions implemented at the transport layer

    • 2.23 explain name resolution functions performed at the transport layer

    • 2.24 identify common transport layer protocols and their function including:

      • 2.24.1 Transmission Control Protocol (TCP)

      • 2.24.2 User Datagram Protocol (UDP)

      • 2.24.3 Sequenced Packet Exchange (SPX)

      • 2.24.4 Apple Talk Transaction Protocol/Name Binding Protocol (ATP/NBP)

      • 2.24.5 Network Basic Input/Output System/NetBIOS enhanced user interface (NetBIOS/NetBEUI)

      • 2.24.6 new technologies and their associated protocols

  • 3 explain the function of upper layers of the OSI reference model in providing client support; i.e., session layer, presentation layer, application layer

    • 3.1 identify modes of communication associated with the session layer including:

      • 3.1.1 simplex

      • 3.1.2 half-duplex

      • 3.1.3 full-duplex

    • 3.2 describe data compression and encryption processes associated with the presentation layer

    • 3.3 identify file formats that serve as standards for the presentation layer

    • 3.4 describe network services provided by the application layer including:

      • 3.4.1 message handling

      • 3.4.2 file transfer

      • 3.4.3 database queries

    • 3.5 identify upper layer application protocols and their function including:

      • 3.5.1 Simple Mail Transfer Protocol (SMTP)

      • 3.5.2 File Transfer Protocol (FTP)

      • 3.5.3 Simple Network Management Protocol (SNMP)

  • 4 demonstrate established laboratory procedures and safe work practices

  • 5 demonstrate basic competencies

    • 5.1 demonstrate fundamental skills to:

      • 5.1.1 communicate

      • 5.1.2 manage information

      • 5.1.3 use numbers

      • 5.1.4 think and solve problems

    • 5.2 demonstrate personal management skills to:

      • 5.2.1 demonstrate positive attitudes and behaviours

      • 5.2.2 be responsible

      • 5.2.3 be adaptable

      • 5.2.4 learn continuously

      • 5.2.5 work safely

    • 5.3 demonstrate teamwork skills to:

      • 5.3.1 work with others

      • 5.3.2 participate in projects and tasks

  • 6 identify possible life roles related to the skills and content of this cluster

    • 6.1 recognize and then analyze the opportunities and barriers in the immediate environment

    • 6.2 identify potential resources to minimize barriers and maximize opportunities

Program of Studies 2009. Source document, © Alberta Education.