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12. It is a term used in chemistry, to describe a system in which a or more substances, are mixed or dissolved homogeneously in another substance. (1.5 pts) to. Mixture b. Solution c. Compound d. None of the above 13. It is the component that is in a solution, in smaller quantity. (1.5 pts) to. Solution b. Solvent c. Solvent d. Soluto 14. It is the component that is in a solution in greater quantity. (1.5 pts.) to. Solution b. Solvent c. Solvent d. The answers b and c are correct. 15. The quantitative expression of the dissolved amount of solute in a quantity determined solvent is known as: (1.5 pts) to. Solution b. Volume c. Concentration d. Stoichiometry 16.Express the moles of solute among the liters of solution (1.5 pts) to. Molality b. Molarity c. % weight by volume d. % weight by weight Solution 12. The correct answer is B) Solution . It is a term used in chemistry to describe a system in which one or more substances are mixed or dissolved homogeneously in another substance. The given statement is definition of Solution 13. The correct option is D) Solute It is the component that is in a solution, in smaller quantity. 14. The correct option is D) The answers b and c are correct. It is the component that is in a solution in greater quantity. 15. The correct option is C) Concentration The quantitative expression of the dissolved amount of solute in a quantity determined solvent is known as: 16. The correct answer is B) Molarity Express the moles of solute among the liters of solution .

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Solution
12. The correct answer is B) Solution .
It is a term used in chemistry to describe a system in which one or more substances are mixed or
dissolved homogeneously in another substance. The given statement is definition of Solution
13. The correct option is D) Solute
It is the component that is in a solution, in smaller quantity.
14. The correct option is D) The answers b and c are correct.
It is the component that is in a solution in greater quantity.
15. The correct option is C) Concentration
The quantitative expression of the dissolved amount of solute in a quantity
determined solvent is known as:
16. The correct answer is B) Molarity
Express the moles of solute among the liters of solution

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1-The fund financial statements for governmental funds should include a A: Balance sheet for fiduciary funds B: Statement of revenues, expenditures, and changes in fund balances. C: tatement of cash flows. D; All of the above 2- Which of the following terms refers to an actual cost rather than an estimate? A; Budget, B: Encumbrance, C: Expenditure, D : Appropriation 3- Equity in a special Revenue fund is known as ? A: Restricted net assets, B; Fund balance. C: Invested in capital assets, D: Net postion 4- The government fund of a state or local government should report interfund transfers as? A: Other financing sources or uses, B: Items appearing after nonoperating revenues and expenses in the operating statement, C: Revenue or expenditures, D: Appropriation or liabilities 5- Under which basis of accounting is it appropriate to recognize expenses that expenditures? A: cash, B: Modified cash, C : accrual, D: modified accrual Solution 1-The fund financial statements for governmental funds should include a A: Balance sheet for fiduciary funds B: Statement of revenues, expenditures, and changes in fund balances. C: statement of cash flows. D; All of the above 2- Which of the following terms refers to an actual cost rather than an estimate? A; Budget, B: Encumbrance, C: Expenditure , D : Appropriation 3- Equity in a special Revenue fund is known as ? A: Restricted net assets , B; Fund balance. C: Invested in capital assets, D: Net postion 4- The government fund of a state or local government should report interfund transfers as? A: Other financing sources or use s, B: Items appearing after nonoperating revenues and expenses in the operating statement, C: Revenue or expenditures, D: Appropriation or liabilities 5- Under which basis of accounting is it appropriate to recognize expenses that expenditures? A: cash, B: Modified cash, C : accrual, D: modified accrual .

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1.To a young researcher, what are the advantages of using the method of participant observation? What are the disadvantages? 2. What are ways that gender can shape sociological research? 3. Do you think Zimbardoâ€™s Stanford County Prison (research it) experiment was ethical, or should he have been prevented from conducting this study? Defend your position. 4.Explain how you would develop a representative sample of students on your campus in order to conduct some survey research. Solution Such research involves a range of well-defined, though variable methods: informal interviews, direct observation, participation in the life of the group, collective discussions, analyses of personal documents produced within the group, self-analysis, results from activities undertaken off or online, and life-histories. Although the method is generally characterized as qualitative research, it can (and often does) include quantitative dimensions. Traditional participant observation is usually undertaken over an extended period of time, ranging from several months to many years, and even generations. An extended research time period means that the researcher is able to obtain more detailed and accurate information about the individuals, community, and/or population under study. Observable details (like daily time allotment) and more hidden details (like taboo behavior) are more easily observed and interpreted over a longer period of time. A strength of observation and interaction over extended periods of time is that researchers can discover discrepancies between what participants sayâ€”and often believeâ€”should happen (the formal system) and what actually does happen, or between different aspects of the formal system; in contrast, a one-time survey of people\'s answers to a set of questions might be quite consistent, but is less likely to show conflicts between different aspects of the social system or between conscious representations and behavior. In participant observation,a researcher\'s discipline based interests and commitments shape which events he or she considers are important and relevant to the research inquiry.According to Howell (1972), the four stages that most participant observation research studies are establishing rapport or getting to know the people, immersing oneself in the field, recording data and observations, and consolidating the information gathered. .

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1.The party to receive a distribution of principal from an estate is legally called a(n): 2.Cleary, Wasser, and Nolan formed a partnership on January 1, 2012, with investments of $100,000, $150,000, and $200,000, respectively. For division of income, they agreed to (1) interest of 10% of the beginning capital balance each year, (2) annual compensation of $10,000 to Wasser, and (3) sharing the remainder of the income or loss in a ratio of 20% for Cleary, and 40% each for Wasser and Nolan. Net income was $150,000 in 2012 and $180,000 in 2013. Each partner withdrew $1,000 for personal use every month during 2012 and 2013. What was Cleary\'s capital account balance at the end of 2013? 3. What was the total capital balance for the partnership at December 31, 2012? $545,000 Solution Distribution of Income for 2012: Capital Account for 2013: 1. Estate Distributee. 2. $139,420 3. $564,000 .

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1.Consider an organization with which you have been affiliated as an employee or a member, such as a business, church, sorority, and the like. Provide a short overview. 2. Describe the planning system of this organization. 3. Was it effective? If not, why? Part 2 1. Recall a situation in which you made a decision for which the outcome was satisfactory, but not optimal. 2. Describe the reasons you accepted this satisficing decision rather than pushing on to make an optimal decision. Solution Delta Sigma Theta (???) is a not-for profit Greek-lettered sorority of college-educated women dedicated to public service with an emphasis on programs that target the African American community. Delta Sigma Theta Sorority was founded on January 13, 1913, by 22 collegiate women at Howard University. These students wanted to use their collective strength to promote academic excellence and to provide assistance to persons in need. The first public act of Delta Sigma Theta was the Women\'s Suffrage March in Washington D.C., March 3, 1913. Today, Delta Sigma Theta Sorority is the largest African-American Greek-lettered organization.[2] Membership in Delta Sigma Theta is open to any woman who meets the membership requirements, regardless of religion, race, or nationality. Women may join through undergraduate chapters at a college or university, or after acquiring a college degree through an alumnae chapter. Since its founding, Delta Sigma Theta has been at the forefront of creating programming to improve political, education, and social and economic conditions. Delta Sigma Theta has been pivotal in assisting the African American and International communities through education, lobbying, and economic initiatives, including Delta Days at the State and Nation\'s Capitol, Delta Days at the United Nations, Summits and various conferences which focus on pertinent issues of the day. In addition to establishing independent programming, The Sorority consistently collaborates with community and corporate organizations Such as Chase (bank), Habitat for Humanity, Coca-Cola, Wal-Mart, Lawry\'s, and General Electric to further its programming goals. A sisterhood of more than 300,000 initiated members who are predominantly black college-educated women, the sorority currently has over 1,000 chapters located in the United States, England, Japan (Tokyo and Okinawa), Germany, the Virgin Islands, Jamaica, Bermuda, the Bahamas and the Republic of Korea. Delta Sigma Theta is a member of multiple organizations, including the National Pan-Hellenic Council (NPHC) .

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1.Astronomers estimate that a low-mass red dwarf star like Proxima Centauri will shine on the main sequence for four trillion years. Speculate why this star would last so much longer than the estimated 600 Gyr. 2.The star Mira is 1.2 times the mass of the Sun and about 10,000 times more luminous than the Sun. Would Mira fit into the table above? Why or why not? Solution 1. To understand why red dwarfs have such long lifespans, weâ€™ll need to take a look at main sequence stars first, and see how theyâ€™re different. If you could peel back the Sun like a grapefruit, youâ€™d see juicy layers inside. In the core, immense pressure and temperature from the mass of all that starstuff bears down and fuses atoms of hydrogen into helium, releasing gamma radiation. Outside the core is the radiative zone, not hot enough for fusion. Instead, photons of energy generated in the core are emitted and absorbed countless times, taking a random journey to the outermost layer of the star. And outside the radiative zone is the convective zone, where superheated globs of hot plasma float up to the surface, where they release their heat into space. Then they cool down enough to sink back through the Sun and pick up more heat. Over time, helium builds up in the core. Eventually, this core runs out of hydrogen and it dies. Even though the core is only a fraction of the total mass of hydrogen in the Sun, thereâ€™s no mechanism to mix it in. A red dwarf is fundamentally different than a main sequence star like the Sun. Because it has less mass, it has a core, and a convective zone, but no radiative zone. This makes all the difference. The convective zone connects directly to the core of the red dwarf, the helium byproduct created by fusion is spread throughout the star. This convection brings fresh hydrogen into the core of the star where it can continue the fusion process. By perfectly using all its hydrogen, the lowest mass red dwarf could sip away at its hydrogen fuel for 10 trillion years. 2. No , Mira does not fit in that because of high mass. .

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1.a Which of TCP or UDP is connection-less? Which of TCP or UDP is connection-oriented? What is the difference? b. Name the four components of a process c.. What is the PCB? Solution 1. a. UDP is connection-less TCP is connection oriented TCP is connection oriented â€“ once a connection is established, data can be sent bidirectional. UDP is a simpler, connectionless Internet protocol. Multiple messages are sent as packets in chunks using UDP. TCP rearranges data packets in the order specified. UDP has no inherent order as all packets are independent of each other. If ordering is required, it has to be managed by the application layer. The speed for TCP is slower than UDP. UDP is faster because there is no error-checking for packets. There is absolute guarantee that the data transferred remains intact and arrives in the same order in which it was sent. There is no guarantee that the messages or packets sent would reach at all. b. Components of process are following. 1. Object Program Code to be executed. 2. Data Data to be used for executing the program. 3. Resources While executing the program, it may require some resources. 4. Status Verifies the status of the process execution.A process can run to completion only when all requested resources have been allocated to the process. Two or more processes could be executing the same program, each using their own data and resources. c. Process Control Block (PCB, also called Task Controlling Block, process table, Task Struct, or Switchframe) is a data structure in the operating system kernel containing the information needed to manage a particular process. The PCB is \"the manifestation of a process in an operating system\". .

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1. You align 2 lenses together with known focal lengths fi and fa. The equation to deter- mine the equivalent focal length fq is: D.???. ointaining the distance Solution Option (D) 1/f(eq) = 1/f1 + 1/f2, is the correct answer. Explanation - To prove the relation, we consider two thin convex lenses L1 and L2 in contact. Let the foci of the two lenses be f1 and f2 respectively. A point object O is placed. We assume a ray of light from O passing through the first lens L1. It forms an image at I1, in the absence of L2. Then we consider the image formation for the second lens. For the second lens the object is I1. I1 acts as a virtual object fro L2 and the image is formed at I. Let: u = object distance v = distance of image I v1 = distance of image I1 Using lens formula, we know that 1/f = 1/v + 1/u ------------------------------(i) Let us consider each lens separately: Applying sign convention For L1:- f = +f1 v = +v1 u = - u Now substituting them in equation (i), we get: 1/f1 = 1/ (+v1) + 1/ (-u) 1/f1 = 1/v1 -1/u -----------------------? (ii) For L2:- f = +f2 v = +v u = -v1 Now substituting the above in equation (i) we get: 1/f2 = 1/ (v) + 1/ (- v1) 1/f2 = 1/ (v) - 1/ (v1) ------------------------? (iii) Adding the equation (ii) and (iii): 1/f1 +1/f2 = [1/v1 -1/u] + [1/ (v) - 1/ (v1)] 1/f1 +1/f2 = 1/(v1) -1/(u) + 1/ (v) - 1/ (v1) 1/f1 +1/f2 = -1/u + 1/ (v) 1/f1 +1/f2 = 1/v -1/u ------------------------? (iv) Now, if the focal length of the combination of the two lenses L1 and L2 is F and the real image is formed at I (at v distance from the lens) and the object being at O (at distance u from the lens), then: 1/F = 1/v + 1/ (-u) 1/F = 1/v -1/u ----------------------? (v) From (iv) and (v), we get: 1/F = 1/f1 + 1/f2 means - 1 / f(eq) = 1/f1 + 1/f2. This is the relation we have mentioned above. .

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1. What were some of the major work published by Thomas Maithus? employment? accomplishment; nodel price? 2. What are some of the important historical events that took place during his lifetime? 3. Discuss Thomas Maithus theory or hypothesis and its application (if any) to 2015 economies? 4. Is his work still relevant why or why not? Solution MALTHUS, THOMAS ROBERT ( b . near Guildford, Surrey, England, 13 February 1766; d . near Bath, England, 23 December 1834, political economy . Malthus is known in the history of science almost exclusively for his influence on Charles Darwin, exerted almost accidentally. His life, work, and friends were mainly centered on social conditions and political economy, and his work on population was part of these. He did have early training in mathematics, however, and based his arguments on the careful analysis of observed data. Robert Malthus (he appears never to have been called Thomas) was the sixth child of seven born to Daniel Malthus and his wife, the former Henrietta Catherine Graham. Daniel Malthus, a scholar and a friend and admirer of Rousseau, provided a stimulating home life and education for the boy, and later sent him to study with Richard Graves at Claverton and at the Dissenting Academy of Warrington under Gilbert Wakefield. In 1784 Malthus went up to Jesus College, Cambridge, where his tutor was William Frend. He read for the mathematical tripos and graduated in 1788, being ninth wrangler; but he also read widely in French and English history and literature and in Newtonian physics. He had already shown his interest in the practical rather than the abstract. He played games and lived a full social life, apparently unaffected by his cleft palate and harelip. The friends he made at Cambridge influenced the rest of his life; the most important was William Otter (1768 .

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1. What are the advantages and disadvantages of each of sociologyâ€™s main approaches to doing research: scientific sociology, interpretative sociology, and critical sociology? How does each position offer a critique of the others? 2. The text discusses how sociologists operationalize the concept of social class. How would you operationalize important concepts such as intelligence, aggressiveness, femininity, or level of commitment to religion? 3. Discuss the links between the three methodological approaches to sociology and the three theoretical approaches? 4. Suppose you are a sociologist studying alleged police brutality. Construct two arguments, one proposing that you ought to be as objective as possible in your work and let others use your results as they may choose, and the other suggesting that, while striving for accuracy, you should take a stand against any injustices which your research may uncover. Which position do you find more convincing? Why? 5. What are ways that gender can shape sociological research? 6. To a young researcher, what are the advantages of using the method of participant observation? What are the disadvantages? 7. Do you think Zimbardoâ€™s Stanford County Prison (research it) experiment was ethical, or should he have been prevented from conducting this study? Defend your position. 8. Explain how you would develop a representative sample of students on your campus in order to conduct some survey research. Solution 1. What are the advantages and disadvantages of each of sociologyâ€™s main approaches to doing research: scientific sociology, interpretative sociology, and critical sociology? How does each position offer a critique of the others? Now we are going to explain about the above sociology are going to be explaining briefly scientific sociology : Sociologists of scientific knowledge study the development of a Scientific field and attempt to identify points of contingency or interpretative flexibility where ambiguities are present. Interpretative sociology : Another way to look at society is to ask how people interpret the world around them Â Â Â and react to those interpretations.Interpretivist sociology looks at the way society is shaped by the interpretations of the world. Critical sociology : in sociology critical sociology is about critical thinking is often presented as a generic technique. Critical thinking movement has spawned on industry of product lines , analytical typologies and multi-stage models.Critical thinking has been touched as promoting higher order thinking. .

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1. What are the three fundamental elements of an effective security program for information systems? 2. Of these three fundamental controls, which two are used by the Domain User Admin to create users and assign rights to resources? 3. If you can browse a file on a Windows network share, but are not able to copy it or modify it, what types of access controls and permissions are probably configured? 4. What is the mechanism on a Windows server that lets you administer granular policies and permissions on a Windows network using role based access? 5. What is two-factor authentication, and why is it an effective access control technique? 6. Relate how Windows Server 2012 Active Directory and the configuration of access controls achieve C-I-A for departmental LANs, departmental folders, and data. 7. Is it a good practice to include the account or username in the password? Why or why not? Solution Answer: 1. Identification, Authentication, and Authorization are the three fundamental elements of an effective security program for information systems. 2.Authentication and Authorization are the two elements, used by the Domain User Admin to create users and assign rights to resources. 3. read and write permissions should be properly configured. The file access type should be set to read only. 4. Group Policy Editor is used to administer granular policies and permissions on a Windows network using role-based access. 5. The two-factor authentication is a process, requires two different type of identification, such as an ID card and a pin code / password. The user must authenticate with two forms of ID to prove thier identity. So it is effective. 6.In Windows Server 2008 R2, permissions can be set for files and folders.o grant a user, access only to files owned by him and prevent him from accessing any others. 7.Including the account or username in the password is absolutely not a good or suggested practice. It is a common starting place for hackers when attempting to log in to someoneâ€™s account or when trying to use another personâ€™s access. .

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1. What are the various theories that we use to explain why people commit crimes? How are they broadly categorized? Solution In criminology, examining why people commit crime is very important in the ongoing debate of how crime should be handled and prevented. Many theories have emerged over the years, and they continue to be explored, individually and in combination, as criminologists seek the best solutions in ultimately reducing types and levels of crime. Here is a broad overview of some key theories: Rational choice theory: People generally act in their self-interest and make decisions to commit crime after weighing the potential risks (including getting caught and punished) against the rewards. Social disorganization theory: A personâ€™s physical and social environments are primarily responsible for the behavioral choices that person makes. In particular, a neighborhood that has fraying social structures is more likely to have high crime rates. Such a neighborhood may have poor schools, vacant and vandalized buildings, high unemployment, and a mix of commercial and residential property. Strain theory: Most people have similar aspirations, but they donâ€™t all have the same opportunities or abilities. When people fail to achieve societyâ€™s expectations through approved means such as hard work and delayed gratification, they may attempt to achieve success through crime. Social learning theory: People develop motivation to commit crime and the skills to commit crime through the people they associate with. Social control theory: Most people would commit crime if not for the controls that society places on individuals through institutions such as schools, workplaces, churches, and families. Labeling theory: People in power decide what acts are crimes, and the act of labeling someone a criminal is what makes him a criminal. Once a person is labeled a criminal, society takes away his opportunities, which may ultimately lead to more criminal behavior. Biology, genetics, and evolution: Poor diet, mental illness, bad brain chemistry, and even evolutionary rewards for aggressive criminal conduct have been proposed as explanations for crime. .

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1. Return the names, IDS, and average salary of the top 10 employees who are Senior Engineers whose average salary is at least $110,000 in descending order. 2. Find the top ten employees (names, IDs and total wages) who earned equal to or more than $200000 between 01/01/2000 and 01/01/2002. Order them in decreasing order. Assume salaries change every 12 months. For simplicity, ignore salaries that started or ended outside of the date range. 3. Use a subquery to display the employee number and bottom 10 average salaries of the employees who are not \'Staff\'. It is for MySQL, so the statements are slightly fifferent than SQL etc. Solution CREATE TABLE employees ( emp_no INT(11) NOT NULL, birth_date DATE NOT NULL, first_name VARCHAR(14) NOT NULL, last_name VARCHAR(16) NOT NULL, gender ENUM(â€˜Mâ€™,â€™Fâ€™) NOT NULL, hire_date DATE NOT NULL, PRIMARY KEY(emp_no) ); CREATE TABLE departments ( dept_no CHAR(4) NOT NULL, dept_name VARCHAR(40) NOT NULL, PRIMARY KEY(dept_no) ); UNIQUE KEY(dept_name) ); CREATE TABLE dept_emp ( emp_no INT(11) NOT NULL, dept_no CHAR(4) NOT NULL, from_date DATE NOT NULL, to_date DATE NOT NULL, PRIMARY KEY(emp_no) , FOREIGN KEY(emp_no) REFERENCES employees(emp_no), FOREIGN KEY(dept_no) REFERENCES departments(dept_no), PRIMARY KEY(dept_no) ); CREATE TABLE dept_manager ( emp_no INT(11) NOT NULL, dept_no CHAR(4) NOT NULL, from_date DATE NOT NULL, to_date DATE NOT NULL, PRIMARY KEY(emp_no) , FOREIGN KEY(emp_no) REFERENCES employees(emp_no), FOREIGN KEY(dept_no) REFERENCES departments(dept_no), PRIMARY KEY(dept_no) ); CREATE TABLE salaries ( emp_no INT(11) NOT NULL, salary INT(11) NOT NULL, from_date DATE NOT NULL, to_date DATE NOT NULL, PRIMARY KEY(emp_no) ); FOREIGN KEY(emp_no) REFERENCES employees(emp_no) ); CREATE TABLE titles ( emp_no INT(11) NOT NULL, title VARCHAR(50) NOT NULL, from_date DATE NOT NULL, to_date DATE NOT NULL, PRIMARY KEY(emp_no) ); FOREIGN KEY(emp_no) REFERENCES employees(emp_no) ); WHERE avg(salary) > = $110000ORDER BY avg(salary)desc limit 0,10 2. SELECT CONCAT(last_name,first_name) AS emp_name,emp_no,salaryÂ Â FROM employees WHERE salary>=$200000 BETWEEN 01-01-2000 AND 01-01-2001 AND|OR salary>=$200000 BETWEEN 01-01-2001 AND 01-01-2002 ORDER BY salary desc limit 0,10 3. SELECT emp_no FROM employees WHERE salary>(SELECT avg(salary) FROM employees WHERE NOT EXISTS (SELECT name FROM employees) ) ORDER BY emp_no ASC .

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1. Research has shown that a. homogeneous groups are more creative than diverse groups. b. homogeneous groups are less satisfied than diverse groups. c. diverse groups are more creative than homogeneous groups. d. creativity has nothing to do with group composition. e. none of these. 2.Â Â Research has shown that network groups a. create divisions in the workplace b. are bad experiences for minority employees c. help retain minority employees d. reduce creativity by being homogeneous e. none of these 3. Â Â Â Â Â Which of the following refers to work behavior that goes beyond job requirements and contributes as needed to the organization\'s success? a. Job satisfaction b. Organizational citizenship c. Cognitive dissonance d. Job involvement e. Organizational Commitment 4.Â Â When Bonnie remarks that she loves the classes she is taking this semester, it refers to which component of attitude? a. Knowledge b. Behavior c. Dissonance d. Affect e. Cognitions 5. Â Â The cognitive process people use to make sense out of the environment by selecting, organizing, and interpreting information is called a. selective retention. b. dissonance. c. attitude. d. perception. e. personality. 24.Â Â Josh evaluates Kandi\'s performance and gives her an Solution 1.B 2.D 3.A 4.C 5.B 24,C 25.B .

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1. What is a staging area? 2. Why are users not allowed to interact with the staging area? 3. When should we use flat files in the staging area? 4. What is ETL, and when should it be applied? Solution Staging area is place where you hold temporary tables on data warehouse server. Staging tables are connected to work area or fact tables. We basically need staging area to hold the data , and perform data cleansing and merging , before loading the data into warehouse Other response activities that may occur at/near a staging area are: personnel and equipment sign-in and sign-out, a fi eld or forward command center, security, personnel and equipment decontamination, wildlife treatment, and responder break areas SAFETY • Staging areas should be monitored to ensure a safe environment. Consider the following hazards: - Aircraft and heavy equipment operations, - Slips, trips and falls, - Hypothermia, - Exposure to contamination and hazardous materials, - Heavy equipment and crane operations, - Hearing impairment, - Respiratory exposure, and - Eye protection. • Select PPE based on the incident-specifi c Site Safety Plan. Programmers use flat file databases when creating applications in Oracle and SQL, which support multiple programming languages. Because of their simple structure, flat files consume less space than structured files, but the information in flat files can only be read, stored and sent. Data representation in a flat file database complies with certain standards. Every column in a flat file database is restricted to a specific data type. ETL stands for Extract-Transform-Load and it is a process of how data is loaded from the source system to the data warehouse. Data is extracted from an OLTP database, transformed to match the data warehouse schema and loaded into the data warehouse database. Many data warehouses also incorporate data from non-OLTP systems such as text files, legacy systems and spreadsheets. Let see how it works For example, there is a retail store which has different departments like sales, marketing, logistics etc. Each of them is handling the customer information independently, and the way they store that data is quite different. The sales department have stored it by customer’s name, while marketing department by customer id. Now if they want to check the history of the customer and want to know what the different products he/she bought owing to different marketing campaigns; it would be very tedious. The solution is to use a Datawarehouse to store information from different sources in a uniform structure using ETL. ETL can transform dissimilar data sets into an unified structure.Later use BI tools to derive meaningful insights and reports from this data .

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