Nt1210 lab 3.1

 Introduction to Networking

Identify some distinctions between wide area networks (WANs) and local area networks (LANs). Explain how the two networks may differ, as well as how the two may be similar. Participation Requirements:

· Each post should include an original post and two responses to peers. All posts should be substantiated with references and not be of the type that says "I agree" or "Good Post," as neither of these has any new information to sustain a discussion.

· Comment on at least two other students' and explain why you agree or disagree with their postings.

· Submit your initial posts as early in the week as possible and, before the end of the week, respond to at least two of your peers' initial posts.

· Be polite and respectful of your classmates' opinions. You may disagree but do so in a constructive manner.

· Provide logical reasons and substantiate your classmates' points with references from the textbook or authentic websites.

· Do NOT include attachments to your postings.

Network Media Part of being a network administrator is working with hardware. It is important to know the differences in media and devices as they relate to cost, performance, scalability, etc. This lab assessment will give you an idea of the general costs associated with commonly used networking equipment. Click here to download the details to complete this assessment. Remember to answer the "Thought Questions" at the end of the lab. Submission Requirements: In a Microsoft Word document, answer the four "Thought Questions" at the end of the lab. Save the document as "Lab 3.1_initials_mmddyy" and submit it as an attachment. Font: Arial, 12-point, double-spaced Word Count per Question: 15–45 words

NETWORK MEDIA

Most network administrators work with limited budgets, a litany of user requests, and somewhat unrealistic expectations from upper management. They need to know what requests they can accommodate and at what cost. In this assignment, you will search the Web for certain pieces of commonly used hardware. Then you will copy the image you find, record the cost, and note the specification requested (e.g. speed rating). You may only need to visit a couple of sites to get the images and information. This project will give you an idea of the general costs associated with commonly used networking equipment.

1. Open a word processing program (e.g. Microsoft Word, OpenOffice Writer, etc.).

2. Create the following tables with the same media, image, price, and rated speed columns. (See Table 6-1.)

3. For each of the media listed below find the associated image, price, and speed rating by searching the Internet.

4. Complete the table below with images, prices, and speed ratings you obtained in your search. 5. Include this completed table with your screenshots.

6. For each of the media listed below find the associated image and price by searching the Internet.

7. Complete the table below with images and prices you obtained in your search. (See Table 6-2.)

8. Include this completed table with your screenshots.

THOUGHT QUESTIONS

1. Which Web site had most of the media listed above?

2. Were there a variety of Cisco routers/switches for you to choose from? Why?

3. Do hardware purchases or salaries for IT workers demand a greater share of the total cost of ownership for an IT infrastructure at a typical medium-sized company? Why?

4. Is it less expensive for companies to install wired or wireless networks? Why?

DNS and DHCP in Network Communication Research the terms DNS and DHCP in the textbook, Introduction to Networking, and in the ITT Tech Virtual Library. Discuss how these services may be related and how a small business owner might use either or both of these. Participation Requirements:

· Each post should include an original post and two responses to peers. All posts should be substantiated with references and not be of the type that says "I agree" or "Good Post," as neither of these has any new information to sustain a discussion.

· Comment on at least two other students' posts that differ from your opinion and explain why you agree or disagree.

· Submit your initial posts as early in the week as possible and, before the end of the week, respond to at least two of your peers' initial posts.

· Be polite and respectful of your classmates' opinions. You may disagree but do so in a constructive manner.

· Provide logical reasons and substantiate your classmates' points with references from the textbook or authentic websites.

Wireless LAN (WLAN) Placement Understanding how to set up a WLAN in both the home and workplace is essential to smooth operating conditions. With the recent increase of wireless devices, such as laptops/notebooks, tablets, smartphones, webcams, and audio/visual devices, the improper placement of WLAN infrastructure equipment could lead to adverse network performance. Click here to download the details to complete this assessment. Remember to take the specified screenshots and answer the "Thought Questions" at the end of the lab. Click here to download the screenshots documentation. Submission Requirements: In a Microsoft Word document, include the screenshots and answers to the "Thought Questions" in approximately 15–30 words. Save the Word document as "Lab 4.1_initials_mmddyy" and submit it your instructor. Remember to appropriately label each screenshot. Alternatively, you can save each screenshot as a separate file and submit the screenshot files along with the Word document to your instructor. Font: Arial, 12-point, double-spaced

This lab reviews the placement and capacity of wireless access points (AP). This includes the comparison of antenna types for wireless broadcasting. You will also decide which of these antennas to use and the channel to use for overlapping coverage of the APs in an Extended Service Set (ESS). Compile a lab report of the solutions to the assigned exercises and include a review of the work necessary to arrive at the solution. Wireless AP Placement and Configuration The placement of wireless devices to provide a continuous coverage area (in an ESS) requires careful planning for both the channel and the type of antenna used for each AP that needs to be included. For this lab, consider the network needs of a campus building that requires wireless coverage for students and researchers. The classroom capacity is 25 students and an instructor. The research labs only need ten connections. Each AP can handle a maximum of 50 connections, but it is advisable to have less than the maximum number in use. It is also advisable to limit the external access to the WLAN because of the private nature of some of the network traffic. The building plan and the AP locations are shown in Figure 6-12. NT1210: Week 4 Network Communication Lab 4.1 Wireless LAN (WLAN) Placement 2 Exercise 6.4.1 There are three main types of antennas that can be used for WLAN APs: directional, omnidirectional, and right-angle. Describe each of these antenna types. You can get more powerful antennas that can broadcast longer distances. Why would these antennas be limited in use for standard WLAN placement in a home? Exercise 6.4.2 Using Figure 6-12 as a guide, explain what type of antenna and which channel should be used for each of the APs that are placed. Given the capacity of each AP, is this placement sufficient to cover all the classrooms and labs? Why or why not? NT1210: Week 4 Network Communication Lab 4.1 Wireless LAN (WLAN) Placement 3 Lab 6.4 Review 1. Radio signals attenuate through walls and obstacles. How would this affect AP placement in a home or office? Use your textbook and Internet research to justify your answer. 2. To which AP will a student in Classroom B connect? What about a student in Classroom A? What about a student in Lab A? 3. Would more powerful antennas improve the AP placement in Figure 6-12? Why or why not? Use your textbook and Internet research to justify your answer.

College Mathematics

Equations and Matrix Row Operations The purpose of this assessment is to help you determine whether you have a clear understanding of linear, polynomial, radical, and quadratic equations, and provide you feedback to clarify any misunderstandings. The discussions for this class center on reviewing sample problems that were solved incorrectly. From the list of incorrectly solved problems, pick a problem that has not been discussed yet, and perform the following tasks:

1. Identify the error made in the solved problem.

2. Correctly solve/simplify the problem showing all the steps. Be sure to include any formulas or properties that support the correctly solved problem.

3. Write a few sentences explaining how to avoid making this mistake in future practice.

4. Reply to other students agreeing or disagreeing with your responses, and add any additional advice to avoid making these types of mistakes in future practice.

3 < −3𝑥 + 42 < 57

−39 < −3𝑥 < 15

19 > 𝑥 > −5

−5 < 𝑥 < 19

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