Read addressing table and network map
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1 Term 1 Grade 12 -Task Sheet 4 Name: SIS No Group: N/A (Not Applicable) Signed Date: Grade Start Time: Finishing Time: Read addressing table and network map Picture 1 Picture 2
2 OBJECTIVE Read addressing table and network map Task Sheet Unit 3 You will be covering the following Student Learning Outcomes (SLO) List the layers of the Open Systems Interconnection model (OSI model) Explain what a protocol is Explain what an IP address is EQUIPMENT REQUIREMENTS Laptop or Computer, pen, pencil SAFETY REQUIREMENTS N/A TASK INTRODUCTION What is a network model? What are the most common network models? Fill in the details required for the OSI model List the layers of TCP/IP model. Differentiate TCP/IP and OSI model through comparison chart. List any one advantage of OSI reference model. Explain an IP address and two standards? Which layer in the OSI model is dealing with IP addresses. Write any one mnemonic or easy way to remember the order of seven layers. Write down the key roles of the Internet Protocols TCP, IP, HTTP. Page 1 of 6
3 No. Work Plan Teacher Guideline: Please use professional judgement where student responses vary. Work Steps Step Completion & Values Remarks 1 Network model defines a set of network layers and how they interact. The common and important network models are The TCP/IP Model OSI Network Model 2. Data # Layer name Functions (only the main / key function) Data 7 - Application The communication partners or the users are identified for data transfers. This layer works with user end to interact with user applications. Data 6 - Presentation A part of an operating system, where this layer converts incoming and outgoing data from one presentation format to another. Data 5 - Session This layer is responsible for creating and maintaining sessions between the operating system on the presentation layer and other machines. Segment 4 - Transport Is responsible for the logistics of the session. Page 2 of 6 Protocols (any one) HTTP, SMTP, DCP, FTP, Telnet, SNMP, SMPP XDR, TLS, SSL, MIME PPTP, SAP, L2TP and NetBIOS TCP, UDP, SPX, DCCP and SCTP Devices used (any one) (gateways, proxy servers, application switches, filtering firewalls), Ethernet
4 3 There are 4 layers in TCP/IP data model. Packets 3 - Network This is where router works, where the data is processed and send from one node to another. Frames 2 - Data link This is where switches operate and provide a reliable link between two directly connected nodes. Bits 1 - Physical This is where the physical hardware makes up the network. 4 Application layer. 3 Transport layer. 2 Internet layer. 1 Network access layer. Internet Protocol (IPv4), Internet Protocol (IPv6), IPX, AppleTalk, ICMP, IPSec and IGMP ARP, CSLIP, HDLC, IEEE.802.3, PPP, X- 25, SLIP, ATM, SDLS and PLIP. Bluetooth, PON, OTN, DSL, IEEE , IEEE.802.3, L431 and TIA 449. Router, layer 3 switch. Switches, bridges, NICs, encrypting devices. Cables, modems, connectors, NIC, hubs, repeaters. 4 OSI model is compared with TCP/IP model with different criteria. Criteria for comparison OSI model TCP/IP model Acronym or Expansion Open System Interconnect Transmission Control Protocol / Internet Protocol What is it? It is a theoretical model which is used for computing system. It is a client server model used for transmission of data over the internet. How many layers they have? 7 layers 4 layers Who made up the models? Department of Defense (DoD) ISO (International Standard Organization) Which is used the most? Never used Mostly used Page 3 of 6
5 5 Advantage of OSI reference model. Advantages (from book) OSI model is an extremely useful tool for development and problem-solving Extra Information Provides wide variety of choice. Ever stage the product is interpreted well. Encryption of data increases data security. It is easy to add multiple-network models. Does not depend a specific computer system. 6 IP addresses and the layer which is involved in handling IP address 7 Mnemonic for remembering OSI layers is found. 8 Key roles of Internet Protocols are identified. - IP Address is the address which is assigned to every system. It is the necessity of networking to assign a different IP Address to each device to make it unique and distinct. Address is assigned to every different network. - The two standards are: IP Version 4 (IPv4) and IP Version 6 (IPv6) - IP Address generally comes into being at Layer 3 of the OSI Model, at the Network Layer. Please Do Not Throw Seafood Pizza Away Please Do Not Tell Secret Passwords Anytime Please Do Not Throw Salami Pizza Away (Any one) A protocol is a set of rules and guidelines for communicating data. Rules are defined for each step and process during communication between two or more computers. Networks must follow these rules to successfully transmit data TCP - TCP is a connection oriented protocol and offers end-to-end packet delivery. It acts as back bone for connection. IP Internet protocol is in charge of routing. Internet Protocol is connectionless and unreliable protocol. To make it reliable, it must be paired with reliable protocol such as TCP at the transport layer. HTTP - HTTP is a communication protocol. It defines mechanism for communication between browser the client and the web server. Page 4 of 6
6 A Check of Dimension and Function No. Points Student Teacher 1. Can understand network models. 2. Can understand the layers of OSI model. 3. Can list advantage of OSI model. 4. Can compare OSI and TCP/IP models 5. Can understand the IP address in a layer. 6. Can list mnemonics to remember OSI layer. 7. Can understand Internet Protocols and its key functions. Maximum Achievable Points 7 Summarization of Actual Points B Visual Checks No. Inspections Explanation Student Teacher 1. OSI layers features are compared. 2. OSI and TCP/IP are differentiated. 3. Internet Protocols functions are clear. Maximum Achievable Points 3 Summarization of Actual Points maximum points A X 70 % maximum points + X 70 % maximum points A X 30 % + maximum points = + B X 30 % B Page 5 of 6
7 Marking Rubrics A Check of Dimension and Function No. Points 0 1 No efforts made Common network models are 1 Can understand network models. listed. No efforts made OSI model is explained with all 2 Can understand the layers of OSI model. parameters required. 3 Can list advantage of OSI model. No efforts made OSI model is compared rightly. No efforts made Comparison with different 4 Can compare OSI and TCP/IP models parameters are done rightly. No efforts made IP addresses need at the layer 5 Can understand the IP address in a layer. are explained. No efforts made Different mnemonics are 6 Can list mnemonics to remember OSI layer. identified. Can understand Internet Protocols and its key No efforts made Protocols and its key functions 7 functions. are explained. B Visual Checks No. Points OSI layers features are compared. OSI and TCP/IP are differentiated. Internet Protocols functions are clear. No efforts made Student is able to complete the OSI layer comparison table. No efforts made Student is able to complete the OSI and TCP/IP comparison table No efforts made Students can differentiate different Internet Protocols. Page 6 of 6
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