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5.1 Provide a brief definition of network access control. 5.2 What is an EAP? 5.3 List and briefly define four EAP authentication methods. 5.4 What is EAPOL? 5.5 What is the function of IEEE 802.1X? 5.6 Define cloud computing. 5.7 List and briefly define three cloud service models. 5.8 What is the cloud computing reference architecture? 5.9 Describe some of the main cloud-specific security threats. 6.2 What protocols comprise TLS? 6.3 What is the difference between a TLS connection and a TLS session? 6.4 List and briefly define the parameters that define a TLS session state. 6.5 List and briefly define the parameters that define a TLS session connection. 6.6 What services are provided by the TLS Record Protocol? 6.7 What steps are involved in the TLS Record Protocol transmission? 6.8 What is the purpose of HTTPS? 6.9 For what applications is SSH useful? 6.10 List and briefly define the SSH protocols. 7.1 What is the basic building block of an 802.11 WLAN? 7.2 Define an extended service set. 7.3 List and briefly define IEEE 802.11 services. 7.4 Is a distribution system a wireless network? 7.5 How is the concept of an association related to that of mobility? 7.6 What security areas are addressed by IEEE 802.11i? 7.7 Briefly describe the five IEEE 802.11i phases of operation. 7.8 What is the difference between TKIP and CCMP? 8.1 What is the difference between RFC 5321 and RFC 5322? 8.2 What are the SMTP and MIME standards? 8.3 What is the difference between a MIME content type and a MIME transfer encoding? 8.4 Briefly explain base64 encoding. 8.5 Why is base64 conversion useful for an e-mail application? 8.6 What is S/MIME? 8.7 What are the four principal services provided by S/MIME? 8.8 What is the utility of a detached signature? 8.9 What is DKIM? 9.1 Give examples of applications of IPsec. 9.2 What services are provided by IPsec? 9.3 What parameters identify an SA and what parameters characterize the nature of a particular SA? 9.4 What is the difference between transport mode and tunnel mode? 9.5 What is a replay attack? 9.6 Why does ESP include a padding field? 9.7 What are the basic approaches to bundling SAs? 9.8 What are the roles of the Oakley key determination protocol and ISAKMP in IPsec? .

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6.7 What steps are involved in the TLS Record Protocol
transmission?
6.8 What is the purpose of HTTPS?
6.9 For what applications is SSH useful?
6.10 List and briefly define the SSH protocols.
7.1 What is the basic building block of an 802.11 WLAN?
7.2 Define an extended service set.
7.3 List and briefly define IEEE 802.11 services.
7.4 Is a distribution system a wireless network?
7.5 How is the concept of an association related to that of
mobility?
7.6 What security areas are addressed by IEEE 802.11i?
7.7 Briefly describe the five IEEE 802.11i phases of operation.
7.8 What is the difference between TKIP and CCMP?
8.1 What is the difference between RFC 5321 and RFC 5322?
8.2 What are the SMTP and MIME standards?
8.3 What is the difference between a MIME content type and a
MIME transfer encoding?

8.4 Briefly explain base64 encoding.
8.5 Why is base64 conversion useful for an e-mail application?
8.6 What is S/MIME?
8.7 What are the four principal services provided by S/MIME?
8.8 What is the utility of a detached signature?
8.9 What is DKIM?
9.1 Give examples of applications of IPsec.
9.2 What services are provided by IPsec?
9.3 What parameters identify an SA and what parameters
characterize the nature of a particular SA?
9.4 What is the difference between transport mode and tunnel
mode?
9.5 What is a replay attack?
9.6 Why does ESP include a padding field?
9.7 What are the basic approaches to bundling SAs?
9.8 What are the roles of the Oakley key determination protocol
and ISAKMP in IPsec?

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A computer network consists of nodes and communication links which implement its protocols. It interconnects a set of hosts which conform to the network protocols.  A network may be classified as a LAN, MAN, or WAN, depending on its geographic spread, and as private or public, depending on its access restrictions. It may employ a point-to-point or a broadcast communication www.ThesisScientist.com Chapter 1: Introduction 15 model. A point-to-point model may be based on circuit switching or packet switching. The OSI model proposes a seven-layer architecture for networks. Each layer is characterized by a set of protocols. The network nodes implement only the bottom three layers, while the hosts implement all the layers.  The physical layer controls the transmission of raw data bits over communication lines. The data link layer facilitates the reliable transfer of data over communication channels. The network layer controls the end-to-end routing of data across the network. The transport layer manages the efficient and cost-effective transportation of data across the network. The session layer manages the negotiation of the establishment and termination of connections (sessions). The presentation layer provides a mutually-agreeable binary representation of application data (syntax). The application layer provides a mutually-agreeable meaning of application data (semantics).  A service primitive is an abstract representation of the interaction between a service provider and a service user, and may be of one of four types: request, indication, response, and confirmation.  A sequence diagram defines a service protocol by specifying the permissible sequence of service primitives that may be exchanged between service users and service providers.  A state transition diagram describes the various execution states a station can assume and how service primitives cause it to transit from one state to another.  Communication standards are essential in order to achieve interoperability between different equipment and networks.

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9.1 Give examples of applications of IPsec. 9.2 What services are provided by IPsec? 9.3 What parameters identify an SA and what parameters characterize the nature of a particular SA? 9.4 What is the difference between transport mode and tunnel mode? 9.5 What is a replay attack? 9.6 Why does ESP include a padding field? 9.7 What are the basic approaches to bundling SAs? 9.8 What are the roles of the Oakley key determination protocol and ISAKMP in IPsec? including references, No copy paste strictly .

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a brief description of two roles that a forensic psychology professional may have when working with police administrators. Then, analyze the impact of each role on police administration, and each level of the police organization. Support your analysis with references to the Learning Resources. Learning Resources Readings Course Text: Psychology and Policing Chapter 3, "Recruitment, Selection and Training" Book Excerpt: Rostow, C. D., & Davis, R. D. (2004). Defining the fitness-for-duty evaluation. In C. D. Rostow & R. D. Davis (Eds.), Handbook for psychological fitness-for-duty evaluations in law enforcement (pp. 65–71). Binghamton, NY: Haworth Press. Article: Coderoni, G. R. (2002). The relationship between multicultural training for police and effective law enforcement. FBI Law Enforcement Bulletin, 71 (11), 16–18. Retrieved from the Walden Library databases. Article: Love, K. G., & DeArmond, S. (2007). The validity of assessment center ratings and 16 PF personality trait scores in police sergeant promotions: A case of incremental validity. Public Personnel Management, 36 (1), 21-32. Retrieved from the Walden Library databases. Article: McGrath, R., & Guller, M. (2009). Concurrent validity of the candidate and officer personnel survey (COPS). International Journal of Police Science and Management, 11 (2), 150–159. (Review from Week 2). Retrieved from the Walden Library databases. Article: Simmers, K. D., Bowers, T. G., & Ruiz, J. M. (2003). Pre-employment psychological testing of police officers: The MMPI and the IPI as predictors of performance. International Journal of Police Science & Management, 5 (4), 277–294. Retrieved from the Walden Library databases. Article: Steinheider, B., Wuestewald, T., & Bayerl, P. (2006). The effects of participative management on employee commitment, productivity, and community satisfaction in a police agency. Conference Papers-International Communication Association , 1–42. Retrieved from the Walden Library databases. Article: Wang, Y. R. (2006). Does community policing motivate officers at work and how? International Journal of Police Science & Management, 8 (1), 67–77. Retrieved from the Walden Library databases. Article: White, M. D., & Escobar, G. (2008). Making good cops in the twenty-first century: Emerging issues for the effective recruitment, selection and training of police in the United States and abroad. International Review of Law Computers & Technology, 22 (1–2), 119–134. Retrieved from the Walden Library databases. Government Document: U. S. Equal Employment Opportunity Commission. (n.d.). Facts about the Americans with disabilities act . Retrieved from http://www.eeoc.gov/facts/fs-ada.html .

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8-1 Discussion Immigration LawsIt is a violation of the immigra.docx

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776! CHAPTER 26 Rococo to Neoclassicism: The 18th Century in Europe and America appealed greatly to Watteau’s wealthy patrons, whom, even as he was dying from tuberculosis, he still depicted as carefree and at leisure in his most unusual painting, Signboard of Gersaint (!"#. 26-7B). François Boucher. A$er Watteau’s death brought his bril- liant career to a premature end at age 36, F%&'()"* B)+,-.% (1703–1770) rose to the dominant position in French painting, in large part because he was Madame de Pompadour’s favorite artist. Although Boucher was an excellent portraitist, his success rested primarily on his canvases depicting shepherds, nymphs, and god- desses gracefully cavorting in shady glens engulfed in pink and sky-blue light. Cupid a Captive (!"#. 26-8) presents a rosy pyramid of infant and female /esh set o0 against a cool, leafy background, with /uttering draperies both hiding and revealing the nudity of the 1gures. Boucher used the full range of Italian and French Baroque devices—the dynamic play of crisscrossing diagonals, curvilinear forms, and slanting recessions—to create his master- ful composition. But he dissected powerful Baroque curves into a multiplicity of decorative /ourishes, dissipating Baroque drama into sensual playfulness. Lively and lighthearted, Boucher’s artful Rococo In Pilgrimage to Cythera (!"#. 26-7), luxuriously costumed lovers make a “pilgrimage” to Cythera, the island of eternal youth and love, sacred to Aphrodite. (Some art historians think that the lovers are returning from Cythera rather than having just arrived. Watteau provided few clues to settle the question de1nitively.) 2e elegant 1gures move gracefully from the protective shade of a woodland park 1lled with play- ful cupids and voluptuous statuary. 2e poses of the 1gures, which blend elegance and sweetness, are hallmarks of Watteau’s style, both in ambitious multi1gure compositions such as Pilgrimage to Cythera and in single-1gure studies such as L’Indi!érent (!"#. 26-7A). Watteau prepared his paintings using albums of draw- ings in which he sought to capture slow movement from di3cult and unusual angles, searching for the smoothest, most poised, and most re1ned attitudes. As he experimented with nuances of posture and movement, Watteau also strove for the most exquisite shades of color di0erence, de1ning in a single stroke the shimmer of silk at a bent knee or the shine appearing on a glossy surface as it emerges from shadow. 2e haze of color, the subtly modeled shapes, the gliding motion, and the air of suave gentility tinged with nostalgia 26-7B WATTEAU, Signboard of Gersaint, 1721. 26-7 A!"#$!% W&""%&', Pilgrimage to Cythera, 1717. Oil on canvas, 49 30 ( 69 4 120. Musée du Louvre, Paris. Watteau’s fête galante paintings depict the outdoor amusements of French upper-class society. The haze of color suited the new Rococo taste and was the hallmark of the Royal Academy’s Rubénistes. 26-7A WATT.

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8 | New Scientist | 4 January 2020 THE tropics are the most biodiverse regions on Earth. Now there is evidence that they are also the main source of evolutionary innovation and diversity. Complex animals have dominated Earth for 541 million years, a time span called the Phanerozoic eon. Huge numbers of species have evolved and gone extinct during this time, in a complex story that includes fish, giant reptiles and whales. However, in the 1980s palaeontologist John Sepkoski analysed the overall pattern of evolution in the sea, where the fossil record is best. He concluded that marine evolutionary history could be broken down into three supergroups, which he called “great evolutionary faunas”. The first group was dominated by trilobites, which resembled woodlice, and bristle worms; the second by shellfish-like creatures called brachiopods; and the third by molluscs, which have persisted to the present day. Other animals like land mammals probably followed similar patterns, but their fossil record isn’t complete enough for us to know. Now, by analysing nearly 18,300 marine genera from the Phanerozoic fossil record, Alexis Rojas-Briceno of Umeå University in Sweden and his colleagues have found that the evolution of complex marine life is best described using four great groups of fauna, not three (bioRxiv, doi.org/dg98). The first supergroup existed between 541 and 494 million years ago, spanning the Cambrian explosion in which many animal groups first emerged. As in the original analysis, trilobites dominated. The second supergroup, dubbed the Palaeozoic, lasted from 494 to 252 million years ago. Creatures with hard outer shells were now widespread, including brachiopods. This phase ended when the end- Permian extinction wiped out almost all complex life on Earth. This matches Sepkoski’s analysis, but the new study splits his third great fauna into two. In this version, the third supergroup is called the Mesozoic. It began in the wake of the Permian extinction and ended 129 million years ago, in the middle of the dinosaur era. This time cephalopods, the group that includes squid and octopuses, were the rulers. The fourth and final supergroup, the Cenozoic, is still dominant today. During this time, clams and snails have made up much of the diversity. The team found that all four supergroups originated in the tropics, then expanded through the oceans. This is in line with the idea that the tropics are hotbeds of evolutionary innovation, which has been promoted by David Jablonski at the University of Chicago. It may be that the warmer temperatures and ample sunlight ensure there is plenty of food to nourish a multitude of species. However, John Alroy at Macquarie University in Australia isn’t convinced. “I have always been sceptical about the out-of-the-tropics hypothesis, because they have never seriously dealt with sampling biases, as far .

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7 HYPOTHETICALS AND YOU TESTING YOUR QUESTIONS 7: MEDIA LIBRARY Premium Videos Core Concepts in Stats Video · Probability and Hypothesis Testing Lightboard Lecture Video · Hypothesis Testing Difficulty Scale (don’t plan on going out tonight) WHAT YOU WILL LEARN IN THIS CHAPTER · Understanding the difference between a sample and a population · Understanding the importance of the null and research hypotheses · Using criteria to judge a good hypothesis SO YOU WANT TO BE A SCIENTIST You might have heard the term hypothesis used in other classes. You may even have had to formulate one for a research project you did for another class, or you may have read one or two in a journal article. If so, then you probably have a good idea what a hypothesis is. For those of you who are unfamiliar with this often-used term, a hypothesis is basically “an educated guess.” Its most important role is to reflect the general problem statement or question that was the motivation for asking the research question in the first place. That’s why taking the care and time to formulate a really precise and clear research question is so important. This research question will guide your creation of a hypothesis, and in turn, the hypothesis will determine the techniques you will use to test it and answer the question that was originally asked. So, a good hypothesis translates a problem statement or a research question into a format that makes it easier to examine. This format is called a hypothesis. We will talk about what makes a hypothesis a good one later in this chapter. Before that, let’s turn our attention to the difference between a sample and a population. This is an important distinction, because while hypotheses usually describe a population, hypothesis testing deals with a sample and then the results are generalized to the larger population. We also address the two main types of hypotheses (the null hypothesis and the research hypothesis). But first, let’s formally define some simple terms that we have used earlier in Statistics for People Who (Think They) Hate Statistics. SAMPLES AND POPULATIONS As a good scientist, you would like to be able to say that if Method A is better than Method B in your study, this is true forever and always and for all people in the universe, right? Indeed. And, if you do enough research on the relative merits of Methods A and B and test enough people, you may someday be able to say that. But don’t get too excited, because it’s unlikely you will ever be able to speak with such confidence. It takes too much money ($$$) and too much time (all those people!) to do all that research, and besides, it’s not even necessary. Instead, you can just select a representative sample from the population and test your hypothesis about the relative merits of Methods A and B on that sample. Given the constraints of never enough time and never enough research funds, with which almost all scientists live, the next best strategy is to take a portion of a lar.

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