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NTC/362 Fundamentals of Networking

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NTC/362 Week 1 Includes Everything listed below for Week 1, A+ Work! NTC/362 Wk 1 – MindTap Unit 1 Quiz Use the MindTap Access link to access this assignment. Complete MindTap Unit 1 Quiz (Unit 1: Introduction > Unit 1 Apply > Unit 1 Quiz). Which type of address is used at the Transport layer to identify the receiving application? You have a network that consists of seven computers running Windows 10 Professional. You add an eighth computer with Windows Server 2016 installed. Which networking model can the network now support that it could not support without the addition of the eighth computer? Which email protocol allows an email client to download email messages to the local computer? In the client-server model, what is the primary protocol used for communication between a browser and web server? A network consists of five computers, all running Windows 10 Professional. All the computers are connected to a switch, which is connected to a router, which is connected to the Internet. Which networking model does the network use? You have a network of ten computers connected to a single switch that has 12 ports. You need to add six more computers to the network so you add a second switch by connecting it to the first switch by way of a network cable. Which network topology is now used? Which application embedded in Windows operating systems allows remote control of a computer and uses the RDP secure protocol for transmissions? A network consists of seven computers and a network printer, all connected directly to one switch. Which network topology does this network use? Which two encryption protocols might be used to provide secure transmissions for browser and web server communications? Which email protocol allows an email client to read mail stored on the mail server? NTC/362 Wk 1 – MindTap Unit 12 Quiz Offline submission Your instructor wants you to submit your work offline, but you can view your grade online. Use the MindTap Access link to access this assignment. Complete the MindTap Unit 12 Quiz (Unit 12: Wide Area Networks > Unit 12 Apply > Unit 12 Quiz). What specifications define the standards for cable broadband? What kind of network is the PSTN? What method does a GSM network use to separate data on a channel? What is the lowest layer of the OSI model at which LANs and WANs support the same protocols? ______________ in SONET are analogous to the ________________ of T-carriers. How many channels are in an ISDN PRI connection? Which DSL standard has the fastest speeds immediately outside the CO? What kind of device can monitor a connection at the demarc but cannot interpret data? An organization can lease a private _________________ that is not shared with other users, or a _________________ that can be physically configured over shared lines in the carrier’s cloud. Where does an MPLS label go in a PDU? WEEK 1 Discussion Question Questions & Answers NOTE: Discussion Questions may be different, depending on Instructor. Discussion Question: Introduction to the OSI Protocol Model Format After reviewing the concepts in Ch. 1, "Introduction to Computer Networks," of Networking Essentials, compare and contrast the TCP/IP network model and the 7-layer OSI network model. When would you use one over the other? Which model is more important for network analysis? Discussion Question: Fiber Maps Compare and contrast how alogical fiber map differs from a physical fiber map as depicted in Figures 3-19 and 3-20 of Ch. 3, "Physical Layer Cabling: Fiber Optics," of Networking Essentials. Why are both necessary for illustrating the logical and physical layouts of the network? Are they useful for documenting and planning the fiber network? Discussion Question: Network Diagrams Throughout the course you will be working with network diagrams. Research free network diagraming programs, such as Lucidchart and Gliffy on the Internet. Discuss your findings on programs you may use in this course and the common symbols that are used in network diagrams in the attached Visio® files. Discussion Question: Networks What are the 5 things that come to your mind when you hear the term “networks” & why? Discussion Question: Network Characteristics What are some of the things/attributes that you expect from a network? Discussion Question: Standards Organizations Standards are important in any industry. Discuss the various standards organizations utilized in the telecom & data networking industry. Do they have conflicting charters or have they worked in different areas to form a coordinated industry overview? Discussion Question:: VOIP vs. POTS What are some of the tradeoffs one needs to consider when planning on switching over from POTS to VOIP service. Does your organization use POTS or VOIP. If VOIP, please share your organization’s experience on this. Discussion Question: Introduction to Telecommunications What are the advantages and disadvantages of the various modulation techniques of analog signals? Discussion Question: Introduction to Voice Telecommunications Discuss the history and progression of the voice telecommunications industry. What are the current voice network standards? Discussion Question: VOIP What are some considerations an organization should look at when moving from a traditional phone system to VoIP? Explain the impact on an organization when using VoIP. Discussion Question: Introduction to Telecommunications Network Structures Standards are important in any industry. Discuss the various standards organizations utilized in this industry. Do they have conflicting charters or have they worked in different areas to form a coordinated industry overview? Discussion Question: ATT Break-up What effect did the AT&T breakup have on the eventual growth of the digital network we have today? Discussion Question: ISO The ISO is the international parent standards organization. What are some lower-level standards organizations? What part of telecommunications are they responsible for? Discussion Question: PBX vs Centrex How does a PBX’s method of handling internal calls differ from Centrex service? What does the local exchange carrier provide? What does your company use?


NTC/362 Week 2 Includes Everything listed below for Week 2! A+ Work! NTC/362 Wk 2 - MindTap Unit 2 Quiz Offline submission Your instructor wants you to submit your work offline, but you can view your grade online. 1. Use the MindTap Access link to access this assignment. Complete MindTap Unit 2 Quiz (Unit 2: Network Infrastructure and Documentation > Unit 2 Apply > Unit 2 Quiz). Note: You will have only one attempt at completing this assignment. Which of the following devices are you likely to find in the MDF? Choose all that apply. Which device converts signals from a campus’s analog phone equipment into IP data that can travel over the Internet? What type of diagram shows a graphical representation of a network’s wired infrastructure? A transceiver was recently damaged by a lightning strike during a storm. How might you decide whether the ISP is responsible for replacing this device, or whether your company must foot the bill? You need to connect a new network printer to a nearby wall jack. What kind of cable should you use? You’ve decided to run an Nmap scan on your network. What app could you open to perform this task? Choose all that apply. If you’re shopping for a rack switch, what component on the switch tells you it can be mounted to a rack? A technician from your ISP has arrived to help you troubleshoot a weak WAN connection. To what location do you take her? What is the first step of inventory management? Which of these is considered a secure place to store a list of documented network passwords? Wk 2 – MindTap Unit 5 Quiz (with Answers!) Offline submission Your instructor wants you to submit your work offline, but you can view your grade online. Use the MindTap Access link to access this assignment. Complete MindTap Unit 5 Quiz (Unit 5: Network Cabling > Unit 5 Apply > Unit 5 Quiz). What kind of cable uses BNC connectors? Which connector is likely to be used by cable TV? Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair? Which fiber connector contains two strands of fiber in each ferrule? Which transmission characteristic is never fully achieved? What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissions? Which kind of multiplexing assigns slots to nodes according to priority and need? What type of fiber cable problem is caused when pairing a 50-micron core cable with a 62.5-micron core cable? Suppose you’re creating patch cables to be used in a government office. What color wire goes in the first pin? Which of these categories of twisted-pair cable can support Gigabit Ethernet? Which kind of crosstalk occurs between wire pairs near the source of the signal? WEEK 2 Discussion Question Questions & Answers NOTE: Discussion Questions may be different, depending on Instructor. Discussion Question: Lab Debrief Discuss with the class what issues you may have had with the labs you completed in Week One and how you overcame them. Share what you learned, what to watch for in the future, and if there are any additional questions you may have that your facilitator can answer. Discussion Question: Topologies of Computer Systems Discuss issues that may arise in distributed versus centralized computer systems. What topologies can be used to best serve a distributed computer system using wireless communication? How can a VLAN help manage the communication in the network? Discussion Question: TCPdump Using the course learning materials, valid internet sources, and related personal experience, research TCPdump. When you run the TCPdump command it will capture all the packets for specified interface, until you hit the cancel button. Typically this command is used in Linux-based networks. Discuss how to control the amount of traffic you capture and the device you capture it from. Discussion Question: Fundamentals of Digital Signals Discuss the nature of digital signals, binary, and other multilevel signal types. What are the advantages of digital signals over analog signals? Cover noise suppression in your explanation. Discussion Question: Transmission Media In designing a network what are some of the factors that should be considered before selecting the transmission media to use & why? Discussion Question: Network Designs Why is it useful to have both a logical design and a physical design of a network? Discussion Question: Wireless Networks What are the most appropriate uses for wireless? and Why? What are the least appropriate uses for wireless? and Why? Would you recommend a wireless only network solution for large enterprises? Justify your recommendation. Discussion Question: Transmission Media Security Which transmission media is the most secure? and why? Discussion Question: Digitization of Analog Signals Provide a specific example of digitizing analog signals in the telephone system. Explain band limiting and quantization noise. Explain the µ law and the A law conversion in the coder-decoder. Discussion Question: Digital Systems and the Digital Hierarchy Explain digital multiplexing, the digital T(X), and SONET hierarchy. Explain the differences between the American and European systems. Discussion Question: Digital Services Explain digital services such as Integrated Services Digital Network, Switched Multimegabit Data System, and Switch 56. Discussion Question: Introduction to Modems What are the various modulation techniques? Begin your explanation with frequency-shift keying and move to multilevel QAM. Discussion Question: Voice and Data Network What are some of the challenges being faced by organizations when they implement voice and data into a network? Discussion Question: Ubiquitous integration challenges Organizations today are attempting to integrate voice, data, e-mail, and collaboration software. What are some things they should considerate when they do this? Discussion Question: Mediums Explain the differences between, UTP, STP, Coax, Wireless and Fiber. (speeds, cost, types, when you would use one verses the other). Discussion Question: Asynch Vs. Synch How do asynchronous and synchronous transmissions differ? Which is better suited to large blocks of data, and why?


NTC/362 Week 3 Includes Everything listed below for Week 3! A+ Work! NTC/362 Wk 3 - MindTap Unit 3 Quiz Use the MindTap Access link to access this assignment. Complete the MindTap Unit 3 Quiz (Unit 3: Addressing on Networks > Unit 3 Apply > Unit 3 Quiz). What decimal number corresponds to the binary number 11111111? When your computer first joins an IPv6 network, what is the prefix of the IPv6 address the computer first configures for itself? You have just brought online a new secondary DNS server and notice your network-monitoring software reports a significant increase in network traffic. Which two hosts on your network are likely to be causing the increased traffic and why? Suppose you send data to the 11111111 11111111 11111111 11111111 IP address on an IPv4 network. To which device(s) are you transmitting? Which computers are the highest authorities in the Domain Name System hierarchy? If you are connected to a network that uses DHCP, and you need to terminate your Windows workstation’s DHCP lease, which command would you use? What type of device does a computer turn to first when attempting to make contact with a host with a known IP address on another network? Which type of DNS record identifies an email server? Which of these commands is available only in Linux? Which part of a MAC address is unique to each manufacturer? WEEK 3 Discussion Questions & Answers NOTE: Discussion Questions may be different, depending on Instructor. Discussion Question: Switches and Routers Using the course learning materials, valid internet sources, and related personal experience, research the advantages and disadvantages of routers and switches in a LAN. Discuss specific situations when you would use a switch versus a router and how each can address such issues as response time, jitter, and latency. Discussion Question: Cloud-based Architecture When organizations need to modernize their existing network by moving to a cloud-based architecture, leadership has to determine if this structure is viable for the organization. Discuss the advantages and disadvantages in adopting a cloud structure compared to an existing structure. Discussion Question: Router/Switch Commands After completing the lab assignments this week, or after conducting further research on router/switch commands, list at least three commands used in the setup of switches and/or routers, provide a coded example, and explain how the commands work. Discussion Question: Introduction to Circuit Switching What are the basic concepts of circuit switching? What are the advantages and disadvantages of circuit switching? Discussion Question:TCP/IP vs OSI Protocol Stacks Pictorially model the TCP/IP protocol against the 7-layer OSI model. In your depiction, include the common protocols that fit in the various levels Discussion Question: TCP vs. UDP Layer 4 Protocols What is the difference between UDP and TCP? When would you use one over the other? Discussion Question: Connectionless vs. Connection Oriented packet networks What are some of the advantages & disadvantages of connection oriented networks over connectionless networks? Give one example of each. Discussion Question: LAN vs. WAN How do LANs and WANs compare in terms of reach, bandwidth, complexity, scalability and reliability? Justify your answer? Discussion Question: Introduction to Packet Switching What is a packet? What is packet switching? How would you explain the concept of packet switching? What are the advantages and disadvantages of packet switching over circuit switching? What is a packet? Discussion Question: Introduction to Network Channels, Processors, and Media What are the advantages and disadvantages of network processors, such as hubs, switches, routers, and gateways? What are the three main types of network media? What is their performance in terms of reliability, speed capabilities, and nominal distance for reliable spans? Discussion Question: VCs what are they? What is a virtual Circuit in a packet switched network? What types of VC are available and how are they different? Why is it beneficial to use VCs? Discussion Question: TCP/IP 4 Vs. 6 Describe the difference between TCP/IP V4 and V6. What happened to V5? Discussion Question: What is CIDR Define what CIDR means and how it works. Discussion Question: Network Congestion What are some methods to resolve network congestion? Determine what the traffic is.


NTC/362 Week 4 Includes Everything listed below for Week 4! A+ Work! NTC/362 Wk 4 - MindTap Unit 4 Quiz Use the MindTap Access link to access this assignment. Complete the MindTap Unit 4 Quiz (Unit 4: Network Protocols and Routing > Unit 4 Apply > Unit 4 Quiz). Which OSI layer is responsible for directing data from one LAN to another? At which OSI layer does IP operate? What kind of route is created when a network administrator configures a router to use a specific path between nodes? Which two protocols manage neighbor discovery processes on IPv4 networks? Which routing protocol does an exterior router use to collect data to build its routing tables? What field in a TCP segment is used to determine if an arriving data unit exactly matches the data unit sent by the source? A routing protocol’s reliability and priority are rated by what measurement? When a router can’t determine a path to a message’s destination, where does it send the message? Which protocol’s header would a Layer 4 device read and process? What is the Internet standard MTU? NTC/362 Wk 4 - MindTap Unit 8 Quiz Use the MindTap Access link to access this assignment. Complete the MindTap Unit 8 Quiz (Unit 8: Subnets and VLANs > Unit 8 Apply > Unit 8 Quiz). Which formulas can be used to calculate the magic number? Choose two. How many bits of a Class A IP address are used for host information? Which IEEE standard determines how VLANs work on a network? Which port mode on a switch enables that port to manage traffic for multiple VLANs? What is the formula for determining the number of possible hosts on a network? Which of the following is not a good reason to segment a network? What do well-chosen subnets accomplish? Which hexadecimal block in an IPv6 address is used for the Subnet ID? What is the least number of bits you would need to borrow from the network portion of a Class B subnet mask to get at least 130 hosts per subnet? While designing your network’s VLAN topology, your team has decided to use a centrally managed DHCP server rather than creating a separate DHCP server for each VLAN. What software will you need to make the central DHCP server accessible across VLANs? NTC/362 Wk 4 MindTap Unit 11 Quiz Use the MindTap Access link to access this assignment. Complete the MindTap Unit 11 Quiz (Unit 11: Network Performance and Recovery > Unit 11 Apply > Unit 11 Quiz). When shopping for a new router, what does the MTBF tell you? While troubleshooting a recurring problem on your network, you will want to examine the TCP messages being exchanged between a server and a client. Which tool should you use? One of your coworkers downloaded several, very large video files for a special project she’s working on for a new client. When you run your network monitor later this afternoon, what list will your coworker’s computer likely show up on? Which power backup method will continually provide power to a server if the power goes out during a thunderstorm? What port do SNMP agents listen on? Your roommate has been hogging the bandwidth on your router lately. What feature should you configure on the router to limit the amount of bandwidth his computer can utilize at any one time? What command requests the next record in an SNMP log? Which of the following features of a network connection between a switch and server is not improved by link aggregation? What field in an IPv4 packet is altered to prioritize video streaming traffic over web surfing traffic? Which type of disaster recovery site contains all the equipment you would need to get up and running again after a disaster, and yet would require several weeks to implement? WEEK 4 Discussion Questions & Answers NOTE: Discussion Questions may be different, depending on Instructor. Discussion Question: Network Management Tools Discuss network management tools that can be used with LAN, WAN, and wireless technologies. Can a similar approach be used in wired versus wireless approaches? Discussion Question: Packet Capture Using the course learning materials, valid internet sources, and related personal experience, research packet capture analysis tools like TCPdump and Wireshark, and free network management tools, like Capsa Free and Pandora FMS. Provide an example of how an individual would use TCPdump as a troubleshooting tool. Discuss how to choose a packet analysis or network management tool given various network configurations. Discussion Question: Troubleshooting After completing the lab assignments this week, explain how Wireshark can be applied as a troubleshooting tool and provide an example of how the application of Wireshark could be used in industry. As an optional response, if you have experience using an alternate tool (or have researched other tools), explain how the tool can be applied and provide an example of how the alternative can be used in industry Discussion Question: Network Operating Systems What are the predominant network operating systems in use today? What are the differences between LAN and WAN operating systems? Discussion Question: Introduction to Wireless Differentiating among the protocols used in wireless (Media Access Control layer, FDMA, TDMA, and CDMA), what are the problems with existing protocols with satellite communications? Class Discussion: Network Segmentation What is network segmentation? Why would a network administrator want to segment a network? What are some of the techniques for segmenting a network? Class Participation Activity: Network Processors What are the advantages and disadvantages of network processors, such as hubs, switches, routers, and gateways? Discussion Question: Virtual LAN What are Virtual LANs (VLANs) and what are the advantages of using them? Discussion Question: IP Addressing What is class-based IP Addressing & what are some of the problems with it? Discussion Question: OSI and Internet What layers of the OSI are used when you access the Internet? What protocols are used? Discussion Question: SMTP & MIME What is SMTP designated for? What additional capabilities are included in MIME? Discussion Question: Satellite Delays If I have an application where the maximum allowed end-to-end delay is 150 milliseconds, why can’t I use a geosynchronous orbit satellite as a communication link? Discussion Question: Monitoring and Troubleshooting LANs What should be considered when monitoring and troubleshooting a network? Discussion Question: Wireless Security Issues What type of security issues need to be considered when implementing a Wireless LAN? Discussion Question: Why Go Wireless? What are some of the reason an organization might consider using a Wireless LAN?


NTC/362 Week 5 Includes Everything listed below for Week 5! A+ Work! NTC/362 Wk 5 - Network Security Assignment You are in networking at a large international company. Your company recently decided to implement a cross-training initiative, and you have been selected to give a presentation to an audience of non-networking professionals working at various departments in your company. Your presentation must be clear and concise enough to convey technical information to professionals who have a limited understanding of how networking actually works. However, it must also be accurate enough that your audience can understand how their company roles (such as scheduling resource-hogging reports, allowing contractors access to the system, and setting the hours international customers can place orders on your company’s system) can impact the company’s network, particularly in terms of security. You decide to answer the following questions before handing off the material to an assistant to turn into a graphic-rich presentation. Each of your answers should be about 150 to 250 words long. You decide to begin your presentation by providing your audience an overview of networking, with an emphasis on security and why it is important for all company roles to assist in securing the company’s network. You decide to use the OSI model to explain the fundamental characteristics and components of networks because it is visual and presents the complexity of network communication in just 7 steps. Next, you plan to describe basic routing and switching in the context of the OSI model (i.e., in which layer routing, switching, and cabling occur). To underscore your department’s commitment to achieving 24/7 availability, you describe some strategies your department follows to ensure the availability of network access in switched and routed networks. Then, you describe at least three characteristics of an effective security policy, emphasizing the ways in which all departments in the company are responsible for helping secure the company network. To reassure your audience of your network’s security, you list some strategies your department used to build security directly into the design of your company network. Finally, malware has been in the news a lot lately, and you know you will be asked some questions about it. To answer them, you come up with a layperson-friendly definition of malware and identify at least two strategies your department has put into place for protecting your company’s network against malware. NTC/362 Wk 5 - MindTap Unit 10 Quiz Complete the MindTap Unit 10 Quiz (Unit 10: Security in Network Design > Unit 10 Apply > Unit 10 Quiz). Note: You will have only one attempt at completing this assignment. What kind of firewall blocks traffic based on application data contained within the packets? What feature of Windows Server allows for agentless authentication? Which of the following features is common to both an NGFW and traditional firewalls? Which NGFW feature allows a network admin to restrict traffic generated by a specific game? Which command on an Arista switch would require an SNMP notification when too many devices try to connect to a port? At what layer of the OSI model do proxy servers operate? What software might be installed on a device to authenticate it to the network? Active Directory and 389 Directory Server are both compatible with which directory access protocol? Which of the following is not one of the three AAA services provided by RADIUS and TACACS+? Which of the following ACL commands would permit web-browsing traffic from any IP address to any IP address? NTC/362 Wk 5 - MindTap Lab 10-1: Implement a Host-based Firewall Offline submission Your instructor wants you to submit your work offline, but you can view your grade online. Use the MindTap Access link to access this assignment. Complete MindTap Lab 10-1: Implement a Host-based Firewall (Unit 10: Security in Network Design > Unit 10 Live Virtual Machine Labs > Lab 10-1: Implement a Host-based Firewall). WEEK 5 Discussion Question Questions & Answers NOTE: Discussion Questions may be different, depending on Instructor. Discussion Question: Security Concerns Discuss the security concerns inherent to wired, wireless, and mobile networking. How must the different "building blocks" of data communication networks such as switches, routers, and cabling be secured? Discussion Question: Firewalls Discuss how firewalls can be used to mitigate some network attack scenarios and how they may effect availability Discussion Question: Discussion Question What are the predominant electronic and physical threats to communications networks? Discussion Question: Risks and Mitigations What are the most probable risks and the most destructive risks for your environment and how would you suggest to mitigate them? Discussion Question: Discussion Question: Policies & Procedures What is the importance of explicit enterprise security policies, procedures, enforcement and training? Discussion Question: Discussion Question: Components of the DRP What are the main components of a disaster recovery plan for the enterprise? Discussion Question: Discussion Question: Evaluations of Networks What are some things we need to evaluate when protecting our network?