COIT12206 TCP/IP Principles & Protocols Assessment 1 Term 1, 2017 Page: 1 / 2 COIT12206 TCP/IP Principles and Protocols (Term 1, 2017) Assessment item 1— Written Assessment Due date: Friday 21-Apr-2017 11:00 PM ASSESSMENT Weighting: 20% 1 Objectives This assessment item relates to the unit learning outcomes 1 to 3 as stated on page 3 of the unit profile. Instructions Please write your answers to all questions in the ‘ANSWERS_TEMPLATE_ASSIGNMENT_ONE.docx’ document and upload only the template with answers. It is better that you show all your working and steps in your calculations for all questions. Although, you may provide only the final answer in computational questions unless otherwise stated in your question’s instruction. However, if the answer incorrect (even a typo error), you will receive zero marks. Hence, it is better that you show all your working and steps in your calculations. Please ensure that you write your answers in your own words to avoid possible plagiarism and copyright violation. You can understand the Plagiarism Procedures by following the corresponding link in the CQUniversity Policies section of the Unit Profile. Question 1: (3+3=6 marks) You are given a block of IPv4 address with its CIDR notation as 132.34.12.0/23. Your organization needs to have three (3) sub-blocks of addresses to use in its three subnets as shown below:  First subblock of 120 usable host IP addresses.  Second subblock of 100 usable host IP addresses.  Third subblock of 60 usable host IP addresses. Calculate the subnetworks and answer the following questions for all three of the subblocks. Make sure you show detailed calculations to get full marks in this question. a) What is the subnet mask of the subblocks? (3 marks) b) What is first and last address of the subblocks? (3 marks) Question 2: (7 marks) Download and open ‘Assignment one.pkt’ using Packet Tracer. It is a working network with a number of network components. Answer the following questions in the context of the given network. a. List all the network devices (except PCs) present in this network and their associated OSI layers (1 marks)COIT12206 TCP/IP Principles & Protocols Assessment 1 Term 1, 2017 Page: 2 / 2 b. Identify number of available networking ports and default bandwidth each of the routers support. (5 marks) c. In the given network there are two types of Ethernet cable used to connect networking peripherals. Identify those two types of networking cables and explain their differences in terms of uses in the given network. (1 mark) Question 3: (3 marks) Consider 20 pairs of hexadecimal values of an IP datagram below and answer the following questions. Make sure you do necessary conversions to represent the specific value asked for in the questions. 45 00 00 ED FB D1 40 00 FA 06 B6 FC 8A 4D 04 2F 8A 4D B4 72 a) What hexadecimal value/s represents the IP version used in the datagram? What version of IP is used in this datagram? (1 mark) b) What hexadecimal value/s represents the size of the IP header of the datagram? What is the total length of the IP header in bytes (8 bits) in the given datagram? (1 mark) c) What hexadecimal value/s represents the total length of this datagram in bytes? What is the total length of the given datagram in bytes (8 bits)? (1 mark) Question 4: (3+1 =4 marks) a) Find the topology of the network if Table below is the routing table for R1. (3 marks) Mask Network Address Next-Hop Address Interface /27 202.14.18.224 ---- m1 /18 145.23.195.0 ---- m0 Default (0.0.0.0) default 150.56.12.10 m3 b) What is the size of an Ethernet frame carrying an ARP packet? (1 marks) - End-