...Three factors that need to be considered in a cable installation are fire protection, possibility of water damage and protecting from EMI. Fire protection is very important so that if the building were to catch on fire the coating on the cables would not melt or at least not melt as fast. It is also smart to know where fire extinguishers are in order to possibly prevent the fire from spreading if it is not too large. It is important to consider the possibility of water damage because you do not want your servers and equipment ruined by some water that never should have touched it. In this case it is a good idea to know where water pipes run in the building so that you do not risk placing a network closet underneath a bathroom. Or right night to a bathroom for that matter. The possibility of flooding and ruining server equipment, firewall equipment, and cables by a bursting pipe or overflowing flood is just not worth it. You also want to make sure there are sprinklers but maybe not directly over your servers so that there is a possibility of saving them should they be set off for any reason. Protecting from EMI is very important so that you do not have any breaks in signal or weakened signal experiences. Making sure that your cables run perpendicular to power cables is one way to prevent EMI interference. Another way to prevent EMI is to make sure that you have shielded twisted pair cables instead of unshielded twisted pair cables. There are many things to take into consideration...
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...When Erica is presented with manipulatives and asked “How Many?” She is able to state the correct amount for 1, 100% of occurrences, 2, 100% of occurrences, 3, 80% of occurrences. For 4, 63% and for 5, 25%. There are times her attention gets pulled elsewhere causing her to lose the place she was counting. As the numbers get bigger, Erica has a little harder time keeping track of what number she previously hit and what number comes next. There are times when she will hit the button, but it will not work, so she will skip that number or she will touch it again. But she has already moved her finger to the next manipulative, which throws her off. When Erica is asked to identify her numbers in order without any number cards from 1-10, she...
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...In the beginning of the lab I started by exploring both the tcpClient.c and tcpServer.c code. When I had a rough understanding of how it worked, I tried running it. This caused an error to occur. The problem was I was using Winsock sockets instead of BSD sockets. One, Winsock, is a socket creator for windows, the other BSD socket is an application programming interface for Unix. So, in order to get the application running, I simply had to change WIN to BSD sockets. Next I ran both files again and this time I got back a message from the server saying that it had received a message. Then I opened Wireshark to view what was going on between the client and server. In the top frame, I could see the handshake occurring between the client and server, the client was sending a SYN(Synchronize) and the Server was replying with a SYN-ACK, which means Synchronize acknowledgment. I also noted there was a push function occurring, and when I clicked on the psh function and viewed its output in the bottom frame of Wireshark, I could see the message that has been sent. Next I learnt about how to run the server I had created infinitely, to do this I put the entire code, starting at the #endif underneath “WSAStartup”, in a while loop. This would cause an issue later on in the lab, which I’ll discuss shortly. After putting in the code, I had to compile it again, and then when I ran it, I was able to continuously create a connection via the client. After that I wanted to have one of my classmates...
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...internet based attacks. However, in the case of Stuxnet it is generally understood that the worm entered the system via the use of a USB stick. Once on the system the next step was getting the trust of the LAN within the facility, this was achieved through the use of a digital certificate contained in the worm (believed to be stolen from a company called “JMicron” based in Taiwan). Engineered into the worm and proving again how complex and complete the design was when this digital certificate was discovered it instantly replaced it with another digital certificate from another company called “Realtek”. Further investigation found that Realtek was also based in Taiwan, in fact the two companies where in the same industrial park. Figure 1 - How Stuxnet Works [6] An amazing fact with respect to Stuxnet was that it contained four “Zero Day” exploits, a Zero Day is defined in Wikipedia as follows: “A zero-day (or zero-hour or day zero) attack or threat is an attack that exploits a previously unknown vulnerability in a computer application or operating system, one that developers have not had time to address and patch. It is called a "zero-day" because the programmer has had zero days to fix the flaw (in other words, a patch is not available)”. [7] Stuxnet exploited a printer spooler vulnerability, a .LNK vulnerability along with vulnerabilities in the Task Scheduler files and Windows Keyboard file to elevate its privileges to fully control the system. Finally, the worm also...
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...common clock. In the proposed approach although it is considered that cluster head ( a group leader ) is non-malicious but it may be malicious. A malicious cluster head will not report exact time as which it sends reference packets to all intended receivers, i.e. it will send a false time to all receivers. This false time will be used by group members for synchronisation. Hence all group nodes will synchronise to false time. This can be overcome by fixing the initial sender node as non-malicious. The proposed approach is able to overcome from external as well as internal attacker problems is group synchronisation. The external attacks are resolved with the help of MAC message authentication codes and the use of private keys and the internal attacks is finding out on the basis of send and receive time. Fei et al [8] address water monitoring. It has to be monitored as high chemical levels can cause health problems. The authors propose a scalable, low energy, delay tolerant water quality monitoring sensor network model. It is highly variable, has a long propagation delay and mobile. The time synchronisation mechanism can achieve satisfactory timestamp accuracy. The designed a correlation based security model to detect outlier timestamp data and identify nodes generating insider attacks. The scheme can also counter measure insider attacks. It uses low cost water sensors and uses multi hop wireless transmissions to relay data until finally reaching surface stations. The tree like routing...
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...routing before the message is actually delivered to the application on the internet. The TTN backend implements such methods when it is placed between the gateways and the applications.\\ \begin{wrapfigure}{R}{0.5\textwidth} \centering \includegraphics[scale=0.15]{Routing-Services.png}\\ \caption{Routing-Services} \cite{LoRawan - the things network wiki_2017}. \label{fig:Routing-Services} \end{wrapfigure} The TTN backend performs the routing and processing in such a way that any interested party can set up their own network and their own part of the backend yet still utilize the core architecuter offered by the TTN backend. In order to help with the decentralization the components of the TTN backedn were split in a manner shown in the figure above. \\ End devices broadcast LoRaWAN messages over the LoRa radio protocol. These messages are then received by a number of Gateways (G) which is connected to a Router (R). The Router is responsible for managing the gateway's status and for scheduling transmissions. Each Router is connected to one or more Brokers (B). Brokers are the central part of The Things Network. Their responsibility is to map a device to an application, to forward uplink messages to the correct application and to forward downlink messages to the correct Router (which forwards them to a Gateway). The Network Server (NS) is responsible for functionality that is specific for LoRaWAN. A Handler (H) is responsible for handling the data of one...
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...Exercise One Nt1310 Week 1 In: Computers and Technology Exercise One Nt1310 Week 1 NT1310:Week 1 Telecommunications By: Kenneth Martin You are an IT Network Specialist and are required to develop the design of the company’s telephone system for its new building which will begin construction in a few months. In order to get a background which will help when developing the new system, your supervisor asked you to research the current Plain Old Telephone Service (POTS) currently used by the company. You must research the system components and report back to your supervisor , the Telecommunications Manager, within a week. 1. Describe a local land line phone system based on the following Landline Telephone Components: a. Local Loop a local loop is the wired connection from a telephone company's central office in a locality to its customers' telephones at homes and businesses. This connection is usually on a pair of copper wires called twisted pair. The system was originally designed for voice transmission only using analog transmission technology on a single voice channel. Today, your computer's modem makes the conversion between analog signals and digital signals. With Integrated Services Digital Network (ISDN) or Digital Subscriber Line (DSL), the local loop can carry digital signals directly and at a much higher bandwidth than they do for voice only. b. Central Office In telephone communication in the United States, a central office (CO) is an office in a locality...
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...routine adminstrative tasks of popular desktop operating system(s) for standalone and network client computers, and related aspects of typical network server functions. Client-Server Networking I Syllabus Where Does This Course Belong? 1st QTR GS1140 NT1110 GS1145 Problem Solving Theory Computer Structure and Logic Strategies for the Technical Professional 2nd QTR NT1210 Introduction to Networking NT1230 Client-Server Networking I MA1210 College Mathematics I 3rd QTR NT1310 NT1330 MA1310 4th QTR PT1420 NT1430 EN1320 5th QTR PT2520 NT2580 EN1420 6th QTR NT2640 NT2670 CO2520 7th QTR NT2799 SP2750 Physical Networking Client-Server Networking II College Mathematics II Introduction to Programming Linux Networking Composition I Database Concepts Introduction to Information Security Composition II IP Networking Email and Web Services Communications Network Systems Administration Capstone Project Group Theory The follow diagram indicates how this course relates to other courses in the NSA program: 1 Date: 8/31/2012 Client-Server Networking I Syllabus NT2799 NSA Capstone Project NT2580 Introduction to Information Security NT2670 Email and Web Services NT2640 IP Networking PT2520 Database Concepts NT1330 Client-Server Networking II NT1230 Client-Server Networking I NT1430 Linux Networking PT1420...
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...Network Topology Paper Unit 3 Assignment 1 ITT TECHNICAL INSTITUTE NT1310 Physical Networking Peter Mahlan 20168804 04/08/2016 Table of Contents Scope or Introduction 3 Unit 3. Assignment 1. Network Topology 3 Section 1 3 Conclusion 5 Reference 5 Network Topology Scope or Introduction Unit 3. Assignment 1. Network Topology Course Objectives and Learning Outcomes In this assignment, you will describe the hierarchical star, bus, and ring network topologies. Assignment Requirements Chapter3 covered 3 main network topologies – hierarchical star, bus, and ring. Write a paragraph describing each topology. Discuss the reasons for using each, and any strengths/weaknesses each has. Submission Requirements Submit a 1-2 page Word document; double-spaced; Times New Roman 12 pt font. Cite all sources used. Section 1 In computer networking, topology refers to the layout of connected devices. Think of a topology as a network’s virtual shape or structure. This shape does not necessarily correspond to the actual physical layout of the devices on the network. For example, the computers on a home network may be arranged in a circle in a family room, but it would highly unlikely to find a ring topology there. Hierarchical Star Hierarchical star is also known as an extended star topology. Hierarchical or extended star topology is a star network with an additional networking device connected to the main networking device. Typically, a network...
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...ITT Technical Institute IS3340 Windows Security Onsite Course SYLLABUS Credit hours: 4.5 Contact/Instructional hours: 60 (30 Theory Hours, 30 Lab Hours) Prerequisite(s) and/or Corequisite(s): Prerequisite: NT2580 Introduction to Information Security or equivalent Course Description: This course examines security implementations for a variety of Windows platforms and applications. Areas of study include analysis of the security architecture of Windows systems. Students will identify and examine security risks and apply tools and methods to address security issues in the Windows environment. Windows Security Syllabus Where Does This Course Belong? This course is required for the Bachelor of Science in Information Systems Security program. This program covers the following core areas: Foundational Courses Technical Courses BSISS Project The following diagram demonstrates how this course fits in the program: IS4799 NT2799 IS4670 ISC Capstone Project Capstone ProjectCybercrime Forensics NSA NT2580 NT2670 Introduction to Information Security IS4680 IS4560 NT2580 NT2670 Email and Web Services Hacking and Introduction to Security Auditing for Compliance Countermeasures Information Security Email and Web Services NT1230 NT1330 Client-Server Client-Server Networking I Networking II IS3230 IS3350 NT1230 NT1330 Issues Client-Server Client-Server SecurityContext in Legal Access Security Networking I Networking II NT1110...
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...ITT Technical Institute NT1310 Physical Networking Student Course Package Bring this document with you each week Students are required to complete each assignment and lab in this course package on time whether or not they are in class. Late penalties will be assessed for any assignments or labs handed in past the due date. The student is responsible for replacement of the package if lost. Table of Contents Syllabus 2 Student Professional Experience 19 Graded Assignments and Exercises 23 Labs 47 Documenting your Student Professional Experience 57 ITT Technical Institute NT1310 Physical Networking Onsite Course SYLLABUS Credit hours: 4.5 Contact/Instructional hours: 56 (34 Theory Hours, 22 Lab Hours) Prerequisite(s) and/or Corequisite(s): Prerequisites: NT1210 Introduction to Networking or equivalent Course Description: This course examines industry standards and practices involving the physical components of networking technologies (such as wiring standards and practices, various media and interconnection components), networking devices and their specifications and functions. Students will practice designing physical network solutions based on appropriate capacity planning and implementing various installation, testing and troubleshooting techniques for a computer network. Where Does This Course Belong? | | | NT2799 | | | | | | | | NSA Capstone | | | | | | | Project | | | | | NT2580...
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...NT1310-Physical Networking Unit 1 Assignment 1: Voice VS Data 1. A cell phone is a mobile phone which can make and receive calls over a radio link. It connects to a cellular network which allows it to connect to the public telephone network. It uses both voice and data networks. 2. A landline phone is a device that has a physical connection with a telecommunication network. One big advantage landlines hold over cell phones is clear reception. Landlines offer both voice and data usage via broadband. 3. SMS stands for short message services It is the text messaging service component of mobile communication systems, phones or the web. It is the most widely used data application. It is used on data networks. 4. A Fax is the telephonic transmission of printed text and images to a telephone number connected to a device. It uses both analog and digital signals. It operates over both voice and data networks, and is a big reason why there are still landlines. 5. A Pager, also known as a Beeper, is a wireless communication device that receives numeric or text messages. It can also receive and announce voice messages. There are one way pagers which can only receive messages, and two way pagers which can send messages. The Pager uses both voice and data networks. 6. VOIP, or voice over IP is technology which enables the delivery of voice communications and multimedia sessions. Over internet protocol networks, VOIP involves signaling, channel setup, digitization of analog voice signals...
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...Adam Wolfe 10/20/2012 NT1310 – Unit 4. Assignment 1 – Copper vs. Fiber The copper phone wire has very limited bandwidth. It was designed to provide 3,000Hz bandwidth, perfectly adequate for a voice signal. Fiber links offer over 1,000 times more bandwidth capacity and can be carried over 100 times the distance than copper can. The chart pictured here shows the specific advantages Fiber has over copper wiring in regards to bandwidth and distance. When it comes to LANs or premises cabling, a lot of controversy, a lot of "positioning" and a lot of misinformation are talked about by most people who speak on the topic of copper vs. fiber cabling. The wire most use for LANs is a lot younger than fiber optics. Fiber use is over 20 years old, but computer networks on unshielded-twisted-pair cable (UTP) have only been around about 15 years. In that time, UTP has gone through at least 5 generations, each time to keep up with the incrementing bandwidth requisites of LANs; the ever evolving technology of LAN wire is hardly the “telephone wire” that the majority think of it as. Below is a chart showing the LANs growth in capacity LAN | Bandwidth | Ethernet | 10 Mb/s | FDDI | 100 Mb/s | Fast Ethernet | 100 Mb/s | ATM | 55, 155 Mb/s | Gigabit Ethernet | 1,000 Mb/s (1 gigabit/s) | 10 Gigabit Ethernet | 10 Gb/s | But still, even with all the efforts that copper cabling manufactures have made to stay relevant in todays LAN structuring, installation is a problem...
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...ITT TECHNICAL INSTITUTE NT1310 Physical Networking GRADED ASSIGNMENTS ------------------------------------------------- Student Professional Experience Project NSA SPE Project 1 (to be completed by the end of NT1310): Install, Configure, Test, Maintain and/or Document the Worksite Local Area Network and Its Components Purpose The purpose of the Student Professional Experience (SPE) project is to provide you an opportunity for work experience in your field or in a related field to add to your résumé. You may have an opportunity to serve your community or work for a local employer for a project that will take between 20 and 30 hours. Project Logistics Career Services will identify an employer with needs in the following areas: Network related tasks (mostly confined to the LAN and Microsoft Windows Server 2008 environments) Students are expected to practice various skills discussed in all the technical courses in Quarters 1 through 3 of the NSA program at an employer’s site on network related tasks (more confined to the LAN and Microsoft Windows Networking with Server 2008 environments) that would involve installation, configuration, testing, maintenance and documentation of the worksite network and its components, and to properly document the technical information in all involved activities. Such documentation will be used as the source material for Items 2 and 3 defined in the Deliverables section of this document. Possible example projects could...
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...associate degree in Mobile Communications Technology. The following diagrams indicate how this course relates to other courses in respective programs: Network Systems Administration NT2799 NSA Capstone Project NT2580 Introduction to Information Security NT2670 Email and Web Services NT2640 IP Networking PT2520 Database Concepts NT1330 Client-Server Networking II NT1230 Client-Server Networking I NT1430 Linux Networking PT1420 Introduction to Programming NT1110 Computer Structure and Logic NT1201 Introduction to Networking NT1310 Physical Networking CO2520 Communications SP2750 Group Theories EN1420 Composition II EN1320 Composition I GS1140 Problem Solving Theory GS1145 Strategies for the Technical Professional MA1210 College Mathematics I MA1310 College Mathematics II Networking Technology Courses Programming Technology Courses General Education/ General Studies 1 Date: 7/18/2011 IP Networking Syllabus Mobile Communications Technology MC2799 MCT Capstone Project NT2640 IP Networking MC2560 Mobile Wireless Communication I MC2660 Mobile Wireless Communication II MC2665 Mobile...
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