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Many organizations offer a free domain name resolution service that resolves DNS requests through a worldwide network of redundant DNS servers. The claim is that this is faster and more reliable than using the DNS servers provided by Internet Service Providers (ISP). They also claim that their DNS servers improve security by maintaining a real-time blacklist of harmful websites and will warn users whenever they attempt to access a site containing potentially threatening content. They also say that using this service can reduce exposure to types of DNS poisoning attacks. Research free DNS services. Identify at least three providers and create a table comparing their features. Are the claims of providing improved security valid? How do they compare with your ISP's DNS service?
Now consider how the denial of service (DoS) attacks can cripple an organization that relies heavily on its web application servers, such as online retailers. What are some of the most widely publicized DoS attacks that have occurred recently? Who was the target? How many DoS attacks occur on a regular basis? What are some ways in which DoS attacks can be prevented?
Write at least a one-page paper of your research on DoS Attacks, and make sure to include the table created for the DNS.
Make a class for a singly linked circular list that has no end and no beggining. The only access on the list is a single reference, current, that can point to any link on the list.
You have a little free time on your hands and decide to create a simple game. Utilize the design tools that you have learned this week to design and program a very simple game.
1. What is Billcutterz' business model? Briefly elaborate on the components of this model.
In this lab, you will prepare a Data Dictionary based on the list of elements. Also, your task will be determined the tables, their relationships, primary and foreign keys. Based on this analysis, you will create Database Schema, relational tables..
What file sharing protocol do you recommend and why? Should you configure this network as a peer-to-peer network or as a client/server network?
Explain how big data differs from data stored in a relational database. Explain what Hadoop is in relations to big data. What is R?
A Project Manager prepares less accurate estimate in order to gain competitive advantage over other bidders. How is this a violation of the PMI Code of Ethics?
Your company is looking for a market area for a new product/location. what the data tells you about your company/product/new location.
When you are designing a Local Area Network what components on the network would you include in your physical diagram?
Prove that the NAND gate is universal by showing how to build the AND, OR, and NOT functions using a two-input NAND gate.
Compare the differences between MAC and H-MAC. Explain why using H-MAC is more secure than MAC?
Assume Alice uses her browser to open two connections to the HTTP server running on Bob's server. How can these two connections be distinguished by the TCP?
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