How does frequency hopping affect security precautions, if it all..pdf

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How does frequency hopping affect security precautions, if it all.? How does frequency hopping affect security precautions, if it all.? Solution Frequency-hopping spread spectrum (FHSS) transmission is the repeated switching of frequencies during radio transmission to reduce interference and avoid interception. It is useful to counter eavesdropping, or to obstruct jamming of telecommunications. And it can minimize the effects of unintentional interference. In FHSS, the transmitter hops between available narrowband frequencies within a specified broad channel in a pseudo-random sequence known to both sender and receiver. A short burst of data is transmitted on the current narrowband channel, then transmitter and receiver tune to the next frequency in the sequence for the next burst of data. In most systems, the transmitter will hop to a new frequency more than twice per second. Because no channel is used for long, and the odds of any other transmitter being on the same channel at the same time are low, FHSS is often used as a method to allow multiple transmitter and receiver pairs to operate in the same space on the same broad channel at the same time. Frequency hopping serves three major purpose in GSM 1) FREQUECY RESUSE AND TO AVOID CO-CHANNEL INTERFERENCE 2) INCREASES THE CHANNEL CAPACITY OF LIMITED GSM CHANNELS 3) DECREASES MULTIPATH INTERFERENCE OF RADIO SIGNAL..

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Between 2000 and 2002, then again from 2008 to 2010, access measures showed no improvement and quality of care measures improved more slowly in racial groups and certain ethnic populations, than the improvements for the total population. Solution Ans: The health care quality chasm is better described as a gulf for certain segments of the population, such as racial and ethnic minority groups, given the gap between actual care received and ideal or best care quality. The landmark Institute of Medicine report Crossing the Quality Chasm: A New Health System for the 21st Century challenges all health care organizations to pursue six major aims of health care improvement: safety, timeliness, effectiveness, efficiency, equity, and patient-centeredness. “Equity” aims to ensure that quality care is available to all and that the quality of care provided does not differ by race, ethnicity, or other personal characteristics unrelated to a patient\'s reason for seeking care. Baylor Health Care System is in the unique position of being able to examine the current state of equity in a typical health care delivery system and to lead the way in health equity research. Its organizational vision, “culture of quality,” and involved leadership bode well for achieving equitable best care. However, inequities in access, use, and outcomes of health care must be scrutinized; the moral, ethical, and economic issues they raise and the critical injustice they create must be remedied if this goal is to be achieved. Eliminating any observed inequities in health care must be synergistically integrated with quality improvement. Quality performance indicators currently collected and evaluated indicate that Baylor Health Care System often performs better than the national average. However, there are significant variations in care by age, gender, race/ethnicity, and socioeconomic status that indicate the many remaining challenges in achieving “best care” for all. Explanation: The U.S. health care system is designed to improve the physical and mental well- being of all Americans by preventing, diagnosing, and treating illness and by supporting optimal function. Across the lifespan, health care helps people stay healthy, recover from illness, live with chronic disease or disability, and cope with death and dying. Quality health care delivers these services in ways that are safe, timely, patient centered, efficient, and equitable. Unfortunately, Americans too often do not receive care they need, or they receive care that causes harm. Care can be delivered too late or without full consideration of a patient\'s preferences and values. Many times, our system of health care distributes services inefficiently and unevenly across populations. Some Americans receive worse care than others. These disparities may occur for a variety of reasons, including differences in access to care, social determinants, provider biases, poor provider-patient communication, and poor health literacy. Each.

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Below is a diagram of the coding strand of DNA showing a gene please use this image for questions 3 and 4). The arrow represents the transcription start site. Which region contains the 3\' Untranslated Region (UTR)? A B C D E Solution Answer: D Reason: When transcription occurs, the m RNA formed is longer than the actual RNA code for protein . It has few bases at 5’ and 3’ end to protect its degradation in cell environment. While translation, which started at middle of exon 1 and stopped at the middle of exon 3, Exon 1 has few portion (C), and exon 3 has few portion (D), which is not undergoing translation. These regions are known as translated regions at 5’ (C) and 3’ (D) end respectively. DNA has 5’ (in diagram) and 3’ (opposite end, not shown in diagram)..

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A patient has a tidal volume of 0.50 L, a frequency of breathing or respiratory rate of 19.0 breaths/min, and an anatomical dead space volume of 0.20 L. Calculate the alveolar ventilation rate. Solution The alveolar ventilation (VA) and the dead space ventilation/volume (VD) together combine to form pulmonary ventilation rate (V). So, V = VA + VD or VA = V - VD The pulmonary ventilation rate is given by, V = VT x f Where VT = Tidal volume and f = Respiratory Rate Here we know, VT = 0.5 and f = 19. So, V = 0.5*19 = 9.5 L We are given that VD = 0.2 L, So, VA = 9.5 - 0.2 = 9.3 L Hence, VA i.e. Alveolar Ventilation rate is 9.3 L/min.

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Write a program to recognizing Idenifier Or Constant in C language Below is sample input and output /* Output: enter string sum 10 sum is Identifier 10 is Constant */ Solution #include int main() { int number; // printf() dislpays the formatted output printf(\"Enter an integer: \"); // scanf() reads the formatted input and stores them scanf(\"%d\", &number); // printf() displays the formatted output printf(\"You entered: %d\", number); return 0; }.

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Why having a lipid rich cell wall make a bacteria harder to stain? Solution In lipid rich cell walled bacteria the alcohol easily pass through the walls making loss of lipid and increasing pores in the membrane thus making the cell wall more porous and the stain is easily washed out distaining the cell. So it is difficult to retain the stain inside the lipid rich cell walled bacteria while staining (Harder to stain)..

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Which of the following statements about leasing is false?ALease financing is a substitute for debt financing. Solution Lease is defined as a contract between two parties for use of assets of one parties by paying rent for using assets. the owner of assets is calls Lessor and the person who use assets is called Lessee. In lease analysis residual value that is value of assets at end of lease contract must be considered. In operating lease maintainance expense should be paid by lessee only. Lease is considered as substitute for debt financing. So, Incorrect statement about lease contract option (E)..

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using the single linked list code written in the class or in the lab, write and test the follow function: Merge() function that takes two lists, each of which is sorted in increasing order, and merges the two together into one list which is in increasing order. Solution //The main class class MergeList { Node head; // head of list static Node a, b; //Node class static class Node { int element; Node next; // Constructor to create a new node Node(int d) { element = d; next = null; } } void printlist(Node node) { while (node != null) { System.out.print(node.element + \" \"); node = node.next; } } Node sortMerge(Node node1, Node node2) { // Here we will check whether both the list are null or not. if (node1 == null && node2 == null) { return null; } // sortResultant node Node sortRes = null; // Now we will compare and merge the elements of both the list. while (node1 != null && node2 != null) { // We will compare current element of both lists if (node1.element >= node2.element) { Node temp = node1.next; node1.next = sortRes; sortRes = node1; node1 = temp; } else { Node temp = node2.next; node2.next = sortRes; sortRes = node2; node2 = temp; } } // If second list reached end, but first list has // nodes. Add remaining nodes of first list at the // front of sortResult list while (node1 != null) { Node temp = node1.next; node1.next = sortRes; sortRes = node1; node1 = temp; } // If first list reached end, but second list has // node. Add remaining nodes of first list at the // front of sortResult list while (node2 != null) { Node temp = node2.next; node2.next = sortRes; sortRes = node2; node2 = temp; } return sortRes; } public static void main(String[] args) { MergeList list = new MergeList(); Node sortResult = null; //Create two linked list list.a = new Node(5); list.a.next = new Node(10); list.a.next.next = new Node(15); list.b = new Node(2); list.b.next = new Node(3); list.b.next.next = new Node(20); System.out.println(\"List a before merge :\"); list.printlist(a); System.out.println(\"\"); System.out.println(\"List b before merge :\"); list.printlist(b); // Cal the function to merge the list in increasing order. sortResult = list.sortedmerge(a, b); System.out.println(\"\"); System.out.println(\"Merged linked list : \"); list.printlist(sortResult); } }.

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A database management system is also referred to as a database. True False Which of the following is true of a virtual private network (VPN)? It provides a secure connection for information transmitted over the public Internet. It does not encrypt messages. It is limited to organizational use. It can be used to store highly sensitive information of an organization in local clients. Compute represent data using binary digits called _____. dots pixels tags bits McCann Systems, a leading IT firm, develops a customized billing software to meet the needs of its individual customers. In this case, the software developed by the firm is referred to as a (n) _____. vertical-market application software horizontal-market application software open source software application simulation software Phobias Inc. offers an online service that stores notes made by customers on the cloud. When a customer enters notes on a device, it gets updated in all the devices he/she owns. Which of the following cloud-based offering does Phobias Inc. provide to its customers? Unified communications as a service (UCaaS) platforms as a service (PaaS) software as a service (SaaS) infrastructure as a service (IaaS) The conversion of the existing traditional databases in organizations to NoSQL database is _____. Highly efficient and is being practiced by many organizations highly recommended because it is user friendly very cost-effective but can be enormously disruptive unnecessary when relational database meet the needs of organizations Solution 21 b) False Database contains different levels of abstraction: 1) External (How the users view the data) 2) Conceptual (Communication medium between internal and external levels) 3) Internal (How the data is physically stored) DBMS is a software that manages databases and allows us to create, edit and delete database, their tables and their data. Examples: MySQL, Oracle, etc 22) a) It provides a secure connection for information transmitted over the public network. c) Yes it is limited to organizational use. 23) d) bits 24) a) vertical application software Vertical application is supports a specific business process and targets a smaller number of users with specific need and job responsibilities within an organization. 25) IaaS 26) A and B.

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There was a mass extinction of plants and animals at the end of the Permian period 250 million years ago. Which of the following would be a reasonable prediction for the fungal fossil record? A. There should be a massive increase in saprophytic fossils during the extinction, and then a massive decline shortly after the extinction was complete. B. There should be a massive increase in mycorrhizal fossils during the extinction and few afterward. C. There should be a massive decrease in all fungal fossils just prior to the time that plant and animal species started to decline, and the number of these fossils should remain low throughout the extinction period. D. There should be a slow increase in all fungal fossils during the time that plant and animal species declined, with their numbers staying relatively high after ward since there was little competition from other species. Solution correct answer:-(A)There should be a massive increase in saprophytic fossils during the extiction,and then a massive decline shortly after the extiction was complete. Because when the saprophytic plants died,they must have definitely become a large amount of fossil.Moreover fungal fossils are very difficult to identify,only except some fungi.When the extinction was complete it was shortly decline..

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The fundamental theory of electromagnetic field is based on Maxwell\'s equations. These equations govern the electromagnetic fields, E, D, H, and there relations to the source, f and p_v. In a source-free region, list the Maxwell\'s equations for time-harmonic fields: Given the Phaser from of the electric field E? For the above given electric field, is B varying with time? Why? Solution Maxwell’s equations simplify considerably in the case of harmonic time dependence. Through the inverse Fourier transform, general solutions of Maxwell’s equation can be built as linear combinations of single-frequency solutions:† E(r, t)= E(r, )ejt d2 (1) Thus, we assume that all fields have a time dependence ejt: E(r, t)= E(r)ejt, H(r, t)= H(r)ejt where the phasor amplitudes E(r), H(r) are complex-valued. Replacing time derivatives by t j, we may rewrite Eq. in the form: × E = jB × H = J + jD · D = · B = 0 (Maxwell’s equations) (2) In this book, we will consider the solutions of Eqs. (.2) in three different contexts: (a) uniform plane waves propagating in dielectrics, conductors, and birefringent media, (b) guided waves propagating in hollow waveguides, transmission lines, and optical fibers, and (c) propagating waves generated by antennas and apertures Next, we review some conventions regarding phasors and time averages. A realvalued sinusoid has the complex phasor representation: A(t)= |A| cos(t + ) A(t)= Aejt (3) where A = |A|ej. Thus, we have A(t)= Re A(t) = Re Aejt . The time averages of the quantities A(t) and A(t) over one period T = 2/ are zero. The time average of the product of two harmonic quantities A(t)= Re Aejt and B(t)= Re Bejt with phasors A, B is given by A(t)B(t) = 1T T0 A(t)B(t) dt = 12 Re AB] (4) In particular, the mean-square value is given by: A2(t) = 1T T0 A2(t) dt = 12 Re AA]= 12|A|2 (5) Some interesting time averages in electromagnetic wave problems are the time averages of the energy density, the Poynting vector (energy flux), and the ohmic power losses per unit volume. Using the definition) and the result (.4), we have for these time averages: w = 1 2 Re 12E · E + 12H · H (energy density) P = 1/ 2 Re E × H (Poynting vector) dPloss dV = 1/ 2 Re Jtot · E (ohmic losses) (6) where Jtot = J + jD is the total current in the right-hand side of Amp`ere’s law and accounts for both conducting and dielectric losses. The time-averaged version of Poynting’s theorem is discussed in Problem 1.5. The expression (1.9.6) for the energy density w was derived under the assumption that both and were constants independent of frequency. In a dispersive medium, , become functions of frequency. In frequency bands where (), () are essentially real-valued, that is, where the medium is lossless,that the timeaveraged energy density generalizes to: w = 1/ 2 Re 1/2 d() d E · E + 1/2 d() d H · H (lossless case) (.7) The derivation of (.7) is as follows. Starting with Maxwell’s equations (1.1.1) and without assuming any particular constitutive relations, we obtain:.

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Since somathesthetic sensation from each side of the body projects to the contralateral postcentral gyrus _______ must have occurred at some point along the pathway. Solution Answer: Since somathesthetic sensation from each side of the body projects to the contralateral postcentral gyrus _ decussation_ must have occurred at some point along the pathway. Reason: Somatosensory system- decussation: Proprioceptors (receptors of self -sensation & decussation) are present in the joints and skeletal (striated) muscles. These receptors sense the relative position of other body parts and balance the posture. Somathesthetic sensation from each side of the body projects to the contralateral postcentral gyrus to parietal lobe, so that initially decussations must have occurred at some point along the pathway representing a muscular activity. The overall body posture and movement is balanced by the integration of information received from the vestibular system and proprioceptors by the brain. For example, the central information in playing piano is due to severe and increased stimulation of accompanying motor areas such as premotor cortex with proper planning with proprioception for decussation. But the activation of cerebellum is a bit less compared to the propriocetion. Spinocerebellar tracts are more widely projected via dorsal column and to the cerebellum and finally the information is considerably utilized for rhythmic movements. This is pathway mainly involved in the sensory ascending pathways to process sensation & perception through a 3 neuron system finally enable “sensory information” to the central nervous system through sensory receptor to the cortex. This pathway is mainly involved in mediating discriminative touch sensation through adequate proprioception & vibration. This pathway has two white matter tracts profoundly possess a first neuron mainly through fasciculus gracilis in the medial column from lower limb (T6 and lower) & sensory information is obtained through fasciculus cuneatus: of lateral column in upper limb (T5) Features of spinothalamic pathway: This is the sensory pathway mainly involved in processing sensory information of “poorly localized touch, pressure & temperature”. This pathway is going to involve cross of sensory information to the spinal cord prior to ascending via the anterior or spinothalamic & lateral spinothalamic tracts. Interaction of these two pathways: The interaction of these two pathways are mainly through axons & spinaothalamic tracts arising into an ascending pathway to transport to the sensory information processing center in the brain. Mainly spinothalamic neurons are going to use first order neurons, second order neurons, third order neurons to enter spinal cord and synapse through posterior gray horns & these neurons are going to carry sensory information of pain, sensation etc in ventral nucleus group of the thalamus. This information is going to reach through from the Lemniscal pathway finally relaye.

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Research and identify three IT-related Risk Management Plans and list your references to the three plans you found. Then identify 10 important components of an IT Risk Management Plan and define these components as well as their importance in an organization. The submitted document should not exceed two pages in length. Solution The three IT related risk management plans are as follows: Following are the components of an IT related risk management plan: System characterization: System characterization comprises of identification and listing of the characteristics of a system. This helps the analysts to identify any bug easily in case of malfunctioning. The various characteristics of a system can be its need, functional requirement, mission, goal, network, security controls etc. Threat identification: This refers to identification of the types of threats a system can face in an organization. The system is designed in such a way that it is able to identify the threats that might be harmful for the system that is being used. Hacking, viruses, data compromise are some of the threats that are faced by systems in an organization. Vulnerability identification: This involves identification of those areas that are vulnerable for a system. The vulnerable areas are required to be monitored closely. Control analysis: This involves controlling various functions that are related with a system and controlling them so that the system works in the way as required by a company. Likelihood determination: Likelihood determination relates with determining the likeliness that a threat may be damaging for the system. There might be likelihood that the threat might be high, medium or low as far as the likelihood of the threat from a bug is concerned. Impact analysis: This component analyzes the impact of potential threat from vulnerability. The impact analysis requires taking into account the importance of the system. In case of critical system the impact from vulnerability would be high. Risk determination: This involves determining the amount of risk involved in a system. This allows the system analysts to formulate the plans accordingly. Control recommendation: The component requires that there should be recommendations in place that would require controlling of the system so that the system works optimally and gives the desired results. Results documentation: There should be a document that should contain all the details that are related with the results that are to be provided by the system..

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Matching. Choose the most appropriate answer from the right. 1. Null Modem 2. FDM 3. Fourier Transform c. Interleave blocks of bits 4. _Photodiode 5. Repeater 6. TDM 7. Twisted Pair 8. Manchester a. RJ-45 d. Extend Range e. Connect two DTEs directly f. detect fiber transmission h. RJ-11 Fixed Frequency j. Trafic Division k. Digital/Digital used in LAN I. Duplicate data on two machines m. Core n. Creates light pulses Solution >null modem = Connect 2 DTE dirctly >FDM = Many frequencies on same medium >Fourier transform = composite signal to component parts >Photodiode = detect fiber transmission >Repeater = Extend range >TDM = interleave block of bits >Twisted pair = RJ-45.

Matching. Choose the most appropriate answer from the right. 1. Null .pdf

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Numerous diseases are caused by viruses and bacteria (etc. Hepatitis, West Nile Virus, Pertussis, Avian Flu, Ebola, Cholera, Typhoid). On a Global scale, viral and bacterial diseases result in hundreds of thousands of deaths every year (sometimes millions in the case of epidemics or pandemics). However, for many of these viral and bacterial pathogens there are effective vaccines available. So, do you think the government, or your employer, or your school has the right to require vaccinations. What if your job requires you to come in contact with hundreds of people a day (nurse, bus driver, etc.). Solution The immunity against these pathogenic diseases has to develop in the children so small kids must be ensured for complete vaccination at proper ages. Vaccines for diseases like Hepatitis and Ebola are given at the early age to develop immunity for such diseases. However, those children who could not get them, should be attended by their schools through government initiatives to make sure every child get them. The jobs like nurse and drivers who happen to meet hundreds of people daily are at the greater risk of developing the diseases so their employers must take care of them..

Numerous diseases are caused by viruses and bacteria (etc. Hepatitis.pdf

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