Get help Liberty-University BIOL 101 Module 1 . Attention deficit disorder (ADD) is a syndrome in which a person has difficulty focusing sustained attention on a task for a significant amount of time. In some cases this is accompanied by hyperactivity as well. It is currently being diagnosed at an all-time high. Now, a psychiatrist named Dr. Edward Hallowell is making a new distinction. He has described a similar set of characteristics in a large number of patients that he terms Attention Deficit Trait (ADT). Imagine that you have the general set of symptoms described above. But which of the two syndromes are causing your symptoms: the disorder (ADD) or the trait (ADT)? Approach your problem using scientific methodology—developing a question, a hypothesis, an experiment, and a control for the experiment. The initial question and the experiment that will be performed on you are provided.Your job is to state the hypothesis and to design the most important and most basic control for this experiment.

Your Question:What’s my problem? Is it ADD or ADT? 1. Your Hypothesis:State your hypothesis based directly on the above question. Your Experiment:Keeping your same diet, sleep habits, and basic activity level, you will be sent on a two-week vacation to the Bahama Islands. You will be given only a beach to walk on and your favorite friend to talk to, following which you will be asked to read and memorize 10 sequential definitions from a standard dictionary in 30 minutes. 2. Your Controlfor this Experiment: You get a numerical result for the number of definitions you memorized. What does that number mean? Nothing—unless you have a control for your experiment. What is the most obvious control for this experiment? Major Hint:The study guide for Quiz 1indicates where this topic is covered in your text. The two figures in that section give you valuable examples. Remember, the initial question and experiment are provided here. Be careful to provide what the assignment is asking for. Write out a testable hypothesis in a brief sentence. In a second sentence, describe a basic, critical control situation (additional experiment?) that will give validity to the experiment described above. Number your sentences with“1” and “2” and do not use paragraph form. The sentences mustnotbe submitted as an attached document, but entered into the text box provided. Your textbook discussed two separate approaches to truth. The molecular structure of oak wood is comparable in complexity to the structure of the Brooklyn Bridge. What is one limitation scientists face in being sure they possess scientific “truth”? Many Christians believe that dinosaurs were created approximately 6,000 years ago because soft tissues have been discovered in fossilized T. rex bones. Body systems work with each other in highly related ways. They perform functions that no one system could do alone. Which “Principle of Life” summarizes these facts?

These successful restricting access techniques are based on the establishing the identity of the user and are called authentication and authorization. The purpose of this conference topic is to understand some of the authentication functions that have been developed to support application-level authentication and digital signatures . Read through Chapter 4 of Stallings textbook and Session 3 notes and become familiar with key distribution and user authentication. • Authentication functions are widely used today to support network-based user authentication. Can you discuss some controls that have had a great degree of success? Which ones if any are not very useful and why? • Key distribution schemes using an access control center and/or a key distribution center have central points vulnerable to attack. Discuss the security implications of such centralization. • List some considerations you may have in mind for implementing an authentication and authorization system in your company. Post your answer as a reply to this conference topic.

When you finished posting, consult your colleagues’ responses and engage in a debate. Security attacks on information systems occur all the time and pertain to every aspect of the attacked system. In other words the attacks are directed against all components of a system. The attackers look for the weakest links in each component and using various tools exploit the potential vulnerabilities. The first step in establishing a secure information system is to consider the potential threats and the corresponding attacks. Next, the risk or the probability of a threat to cause damage to an asset should be evaluated. Once the threat definition and risk analysis are performed, the appropriate solution of defense can be devised. The purpose of this conference topic is to understand the prerequisite steps that should be taken for a successful implementation of security solutions. Read throughChapter 5.2-5.5 of Goodrich & Tamassia and Session 4 Notes, and become familiar with the issues of vulnerabilities. We will focus on typical attacks in the Internet affecting confidentiality, integrity and availability mainly on the lower four layers: Layer 1, Physical; Layer 2, Data Link; Layer 3, Network; and Layer 4, Transport.

• Your boss is asking each engineer from all departments to come up with the one or two sources of network threats and attacks you consider the most critical and why. He wants you to be able to fit your thoughts on an index card. He does not care if the same problem is addressed from several points of view or if you address a very specific “threat of the day” or one from the past that could come back. You are also asked to have an opinion about the potential risks of such threats and attacks. • With limited time and resources your manager wants everyone to suggest the structure of a network defense system to protect the computers and the network. Since this is an open discussion if your favorite idea has been discussed “to death” pick the next. These are pro-active steps. Consider at least two solutions and why one ranks high on your mind. Hint: When describe typical attacks make reference to the corresponding layer and the controls that are employed in that layer to minimize the attack or vulnerability that leads to the attack.

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