Ted considers himself a skillful hacker. He has devised a way to rep.pdf

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Ted considers himself a skillful hacker. He has devised a way to replace the existing startup programs between the moment that the system boots yet before the system actually executes these programs. He believes that if he can perfect his attack, he can gain control of the system. What type of attack is described here? A. Synchronous attack B. TOC/TOU attack C. DCOM attack D. Smurf attack Solution B. A TOC/TOU attack can occur when the contents of a file have changed between the time the system security functions checked the contents of the variables, and the time the variables are actually used or accessed. This is a form of asynchronous attack. Answer A is incorrect because the description describes an asynchronous attack. Answer C is incorrect because the example does not describe a DCOM attack. Answer D is incorrect because although the network might be vulnerable to a Smurf attack, the subsequent lock would not change status of such an attack..

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most extra cellular environments contain a high concentration of sodium ions (Na+). consider a cell membrane that is permeable to potassium (K+) and is in equilibrium. the diffusion of K+ has left the inside of the ell slightly negatively charged and the outside slightly positively charged. suppose that the cell membrane now opens some sodium channels what happens? A) there is no flow across the membrane. the outside of the cell is positeely charged drivingthe sodium ions father away from the cell. B) there is no flow across the membrane. the cell is in equilibrim and so the electric repulsionof the Na+ exactly counters the effects of diffusion. C) the cell becomes positvely charged. both diffusion and the electric attraction to the cell drive into the cell D) the cell becomes positvely charged; diffusion is reversed and K+ are drived back into the cell Solution The cell becomes positively charged, diffusion is reversed and K+ are drived back into the cell..

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Let X be the prive of a meal at a local diner( X = $8,$10,and $12) and let Y be the amount of tip left per meal (Y = $1.50,$2 or $2.50). the joint probability function of X and Y is given by a. Find f(X = 10, Y=2) and interpret what this value represents. c. Find the marginal distributions of X and Y. d. Determine if X and Y are independent Random Variables or not. Explain why or why not.f(x,y)Y=1.50Y=2.00Y=2.50X=8.3.120X=10.15.135.025X=12.03.15.09 Solution.

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LinearPerson.java Please help me the JAVA program Please provide the output. LinearPerson A LinearPerson lives on a number line. At any time, he or she has a position, such as 0 or 3 or -5. He or she can move one position at a time. He or she has a direction of movement. So if a LinearPerson is moving right and is at position -3, the new position will be -2. If a LinearPerson is moving left and is at position -3, the new position will be -4. The following describes the LinearPerson class: You should decide the instance variables needed for LinearPerson. Overloaded constructors: a no-argument constructor that sets the current position at 0 and the current direction as \"to the right.\" a constructor that takes one int as a parameter; the parameter represents the initial position of the LinearPerson methods: public void turn() // changes the direction of the LinearPerson (right to left, or left to right) public void move() // moves the LinearPerson one position in his or her current direction public int getPosition() // returns the current position of the LinearPerson As an example LinearPerson sophie = new LinearPerson(); // sophie is at position 0, moving right sophie.turn(); // sophie is at position 0, moving left sophie.move(); // sophie is at position -1, moving left sophie.move(); // sophie is at position -2, moving left sophie.turn(); // sophie is at position -2, moving right sophie.move(); // sophie is at position -1, moving right Create a class LinearPersonPairthat creates two LinearPerson objects, one using the no-argument constructor, the other object should be created at a given location. The program moves the objects in various directions and prints their final locations. Solution class LinearPerson { private String direction; // current direction private int position; // current position public static final String RIGHT = \"right\"; public static final String LEFT = \"left\"; // no arg constructor public LinearPerson() { this.position = 0; this.direction = LinearPerson.RIGHT; } //arg constructor LinearPerson(int position) { this.position = position; // setting the initial position if (position >= 0) { this.direction = LinearPerson.RIGHT; // setting the direction to right if position is >=0 } else { this.direction = LinearPerson.LEFT; // setting the direction to left if position is < 0 } } //get the curent direction public String getDirection() { return direction; } // get the current position public int getPosition() { return position; } // method to turn the direction public void turn(){ if(this.direction==LinearPerson.RIGHT){ this.direction=LinearPerson.LEFT; // set the direction to left if current direction is right }else{ this.direction=LinearPerson.RIGHT; // set the direction to left if current direction is right } } //method to move the position in current direction public void move(){ if(this.direction==LinearPerson.RIGHT){ this.position=this.position+1; // move the position to right }else{ this.position=this.position-1; //.

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Explain why several versions of nMOS transistor models and pMOS transistor models coexist despite the fact that some models are accurate than others. Solution Some models are more accurate especially for short channel devices but they have a lot of model parameters and thus very complicated.Some models are less accurate and much simpler.Therefore there is a need for different purposes thus different models coexist.

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Explain How Culture influences the way mangers perform their four main functions: planning , organizing, leading and controlling. Solution culture is the the set of aged- old traditions and beliefs shared by the people in an organisation or in a nation. culture plays an important role while when people are at managers level. every decision or step takes by the person reflects his culture directly or indirectly. some people thinks in a pesimistic way and take poor decisions, some may think in a positive way and some may think in the realistic way and take correct decisions. these people will be plan in a successful way and implement them and get positive results. organising is the process of implementing the plan in a proper way by coordination, integration and cooperation of all his peers and emloyees. leading is the process where he becomes the guide to his followers and accept challanges in work life and ready to face them and find solutions. controlling speaks about the managing all the resources and best utilisation of those. the ultimate moto of any organisation is use the available resources in a best way and increase the brand name and wealth of organisation..

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Describe the factors that contribute to a membrane potential. What is the principle cation inside the cell? Outside the cell? Solution Answer: Application of stimuli changes the membrane potential that act as signals, transmitting and processing information along the neuron. The factors that contribute to membrane potential are: (a) Electrochemical gradient of the ion: Active transport of ions causes an electrical gradient to develop across the membrane. The positively charged ions are generally greater outside the cell and negatively charged ions inside the cell. This causes a net negative charge on the inside of the cell and thus a voltage difference across the membrane. This gives rise to the membrane potential. (b) Permeability of the ion: More the membrane is permeable to the ion, greater will be the influence of the equilibrium potential of that ion towards the membrane potential. The principle cation inside the cell is potassium (K+) and outside the cell is sodium (Na+)..

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alokkesh

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Define and explain chemical equilibrium? Include the defenition of reactants and products Define and explain chemical equilibrium? Include the defenition of reactants and products Solution In a chemical reaction, chemical equilibrium is the state in which both reactants and products are available at concentrations which have no further inclination to change with time. Usually, this state comes about when the forward reaction continues at an indistinguishable rate from the reverse reaction. The reaction rates of the forward and backward reactions are, for the most part, not zero, but rather equal. In this way, there are no net changes in the concentrations of the reactant(s) and product(s). Reactant: The substances that outcome from the recombination of molecules is known as the products of the reaction. At the point when chemical reactions are written down, the reactants are written on the left side, in a similar way to a math equation; one reactant in addition to another. Product: Products are the species formed from chemical reactions. Amid a chemical reaction, reactants are transformed into products in the wake of going through a high vitality transition state. Simply the substances that are formed after the reactions of reactant, due to making of new bonds in between the atoms/ions/molecules/compounds..

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Cite the distinction between graphite and carbon. Carbon and graphite fibers are manufactured by pyrolysis. Describe the process to produce fibers. Solution Carbon: 1)“Carbon” comes from the Latin word “carbo,” which in English means “charcoal.” It is an element represented as the letter “C” and bearing the atomic number 6. Carbon is the fourth most abundant element in the world and is essential to all living things and their respective processes. All living things contain carbon. 2)Carbon produces the softest material (graphite) and the hardest substance (diamond). The main difference among carbon substances is how the carbon forms in each matter. Carbon atoms bond in chains and rings. In every carbon substance, a unique formation of carbon can be produced. 3)Carbon has a wide variety of uses both as pure carbon and carbon compounds. Primarily, it acts as hydrocarbons in the form of methane gas and crude oil. Crude oil can be distilled into gasoline and kerosene. Both substances serve as fuel for warmth, machines, and many others. 4)Carbon is also responsible for forming water, a necessary compound for life. It also exists as polymers such as cellulose (in plants) and plastics. 5)Carbon has a wide variety of uses both as pure carbon and carbon compounds. Primarily, it acts as hydrocarbons in the form of methane gas and crude oil. Crude oil can be distilled into gasoline and kerosene. Both substances serve as fuel for warmth, machines, and many others. 6)Carbon is also responsible for forming water, a necessary compound for life. It also exists as polymers such as cellulose (in plants) and plastics. Graphite : 1)Graphite is an allotrope of carbon. It means that it is a substance made of pure carbon and is made of only carbon. Other allotropes include diamonds, amorphous carbon, and charcoal. 2)Graphite comes from the Greek word “graphein,” which in English means “to write.” Formed when carbon atoms link with each other into sheets, graphite is the most stable form of carbon. 3)Graphite is soft but very strong. It is resistant to heat and, at the same, a good conductor of heat. Found in metamorphic rocks, it appears as a metallic but opaque substance in a color that varies from dark grey to black. Graphite is greasy, a characteristic that makes it a good lubricant. 4)Graphite is also used as a pigment and a molding agent in glass manufacturing. Nuclear reactors also use graphite as an electron moderator b) process of manufacturing of Carbon and graphite fibers: A precursor material, which is rich in carbon, is subjected to pyrolysis to extract its carbon content. Pyrolysis Pyrolysis: Thermochemical chemical decomposition decomposition of organic organic material material when it is subjected subjected to elevated temperatures, but no oxygen. Through such a process, the precursor organic material breaks down into gases, liquids, and a solid residue which is rich in carbon. Precursor: Precursor: It is a carbonrich chemical chemical compound, com.

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C Language Problem Please Explain If int n1 = 5, and int d1 = 2, what are the results of the following operations? (assume double frac) frac = (double)n1/(double)d1;frac = (double)n1/d1 + 3.5; frac = (double)(n1/d1) + 2.5; Solution Here the heart of functionality is typecasting. What is typecasting? Type casting is a way to convert a variable from one data type to another data type. frac = (double)n1/(double)d1; n1 = 5 and d1 = 2 what this (double)n1/(double)d1 does.. here typecasting is preforming so (double)n1 = 5.000000 (double)d1 = 2.000000 frac = 5.000000/2.000000 frac = 2.500000 frac = (double)n1/d1 + 3.5; Here only n1 is typecasted into double so n1 is 5.000000 and d1 is 2 (double)n1/d1 + 3.5 => (5.000000 / 2) + 3.5 => 2.500000 + 3.5 => 6.000000 frac is 6.000000 frac = (double)(n1/d1) + 3.5; here there is no typecasting between n1 and d1 ... after division is perform then typecasting is going to applied so (double)(n1/d1) + 3.5 (double)(5/2) + 3.5 (double)(2) + 3.5 2.000000 + 3.5 5.500000 Answer is 5.500000.

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