INFORMATION TECHNOLOGY ISBM MBA EXAM ANSWER SHEETS PROVIDED
CONTACT;
DR. PRASANTH MBA PH.D. DME MOBILE / WHATSAPP: +91 9924764558 OR +91 9447965521 EMAIL: prasanththampi1975@gmail.com WEBSITE: www.casestudyandprojectreports.com
Information Technology
Section A: Objective Type & Short Questions (30 Marks)
This section consists of Multiple Choice & Short Note type questions
Answer all the questions.
Part one carries 1 mark each & Part two carries 5 marks each.
Part One:
Multiple Choices:
1. It means data that have been processed in a form that is meaningful and useful to the user.
a. Data
b. Information
c. System
d. None of the above
2. BCR stands for____________
a. Bar code reader
b. Basic code reader
c. Business code reader
d. None of the above
3. Which of the following comes under output devices?
a. Printer
b. Speaker
c. Both (a) & (b)
d. None
4. A trackball is a stationary device related to the_______
a. Keyboard
b. Joystick
c. Mouse
d. All of the above
5. ___________is a volatile memory and everything disappears if power goes off or is turned off abruptly in the middle of work.
a. RAM
b. ROM
c. CDROM
d. None of the above
6. IC stands for____________
a. Integrated Circuit
b. Information Circuit
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IIBM Institute of Business Management
Examination Paper of Information Technology
c. Interrelated Circuit
d. None of the above
7. DSS stands for____________
a. Decision Support System
b. Direction Support System
c. Both (a) & (b)
d. None of the above
8. How many characters uses the MICR system?
a. 15 characters
b. 18 characters
c. 24 characters
d. 14 characters
9. One Megabyte contains:
a. 1000 KB
b. 1000 Bytes
c. 1000 MB
d. None of the above
10. The smallest element of data is called_______
a. Byte
b. Bit
c. Giga byte
d. None of the above
Part Two:
1. Write a note on „Cache Memory‟.
2. List the different types of information systems.
3. Write a short note on „Value Chain Analysis‟
4. Discuss peer- to - peer model in distributed computing system.
END OF SECTIONA
Section B: Caselets (40 marks)
This section consists of Caselets.
Answer all the questions.
Each caselet carries 20 marks.
Detailed information should form the part of your answer (Word limit 200 to 250 words).
Caselet 1
2
IIBM Institute of Business Management
Examination Paper of Information Technology
It began as a trading site for nerds, the newly jobless, home-bound housewives, and bored retirees to sell subprime goods: collectibles and attic trash. But eBay (www.ebay.com) quickly grew into a teeming marketplace of 30 million, with its own laws and norms, such as a feedback system in which buyers and sellers rate each other on each transaction. When that wasn‟t quite enough, eBay formed its own police force to patrol the listings for fraud and kick out offenders. The company even has something akin to a bank: Its Paypal payment-processing unit allows buyers to make electronic payments to eBay sellers who can‟t afford a merchant credit card account. “eBay is creating a second, virtual economy,” says W. Brian Arthur, an economist at think tank Santa Fe Institute. “It‟s opening up a whole new medium of exchange.” eBay‟s powerful vortex is drawing diverse products and players into its profitable economy, driving its sellers into the heart of traditional retailing, a $2 trillion market. Among eBay‟s 12 million daily listings are products from giants such as Sears Roebuck, Home Depot, Walt Disney, and even IBM. More than a quarter of the offerings are listed at fixed prices. The result, says Bernard H. Tenenbaum, president of a retail buyout firm, is
“They„re coming right for the mainstream of the retail business.” So what started out as a pure consumer auction market-place is now also becoming a big time business-to-consumer and even business-to-business bazaar that is earning record profits for eBay‟s stockholders. And as the eBay economy expands, CEO Meg Whitman and her team may find that managing it could get a lot tougher, especially because eBay‟s millions of passionate and clamorous users demand a voice in all major decisions. This process is clear in one of eBay‟s most cherished institutions: the voice of the Customer program. Every couple of months, the executives of eBay bring in as many as a dozen sellers and buyers, especially its high selling “Power Sellers,” to ask them questions about how they work and what else eBay needs to do. And at least twice a week, it holds hour-long teleconferences to poll users on almost every new feature or policy, no matter how small. The result is that users feel like owners, and they take the initiative to expand the eBay economy – often beyond management‟s wildest dreams. Stung by an aerospace down-turn, for instance, machine-tool shop Reliable Tools Inc., tried listing a few items on eBay in late 1998. Some were huge, hulking chunks of metal, such as a $7,000 2,300-pound milling machine. Yet they sold like ice cream in August.
Since then, says Reliable‟s auction manager, Richard Smith, the company‟s eBay business has “turned into a monster.” Now the Irwindale (California) shop‟s $1 million in monthly eBay sales constitutes 75% of its overall business. Pioneers such as Reliable promoted eBay to set up an industrial products marketplace in January that‟s on track to top $500 million in gross sales this year.Then there is eBay Motors. When eBay manager Simon Rothman first recognized a market for cars on cars on eBay in early 1999, he quickly realized that such high-ticket items would require a different strategy than simply opening a new category. To jump-start its supply of cars and customers, eBay immediately bought a collector-car auction company, Kruse International, for $150 million in stock, and later did a deal to include listings from online classifieds site, AutoTrader.com. Rothman also arranged insurance and warranty plans, an escrow service, and shipping and inspection services.This approach worked wonder. Sales of cars and car parts, at a $5 billion-plus annual clip, are eBay's single largest market. That has catapulted eBay in front of No. 1 U.S. auto dealer AutoNation in number of used cars sold. About half of the sellers are brick-and-mortar dealers who now have a much larger audience than their local area. “eBay is by far one of my better sources for buyers,” says Bradley Bonifacius, Internet sales director at Dean Stallings Ford in Oak Ridge, Tennessee. And for now, the big corporations, which still account for under 5 percent of eBay‟s gross sales, seem to be bringing in more customers then they steal. Motorola Inc., for example, helped kick off a new wholesale business for eBay last year, selling excess and returned cell phones in large lots. Thanks to the initiative of established companies such as Motorola, eBay‟s wholesale business jumped ninefold, to $23 million, in the first quarter.As businesses on eBay grow larger, they spur the creation of even more businesses. A new army of merchants, for example, is making a business out of selling on eBay for other people. From almost none a couple of years ago, these so called Trading Assistants now number nearly 23,000. This kind of organic growth makes it
3
IIBM Institute of Business Management
Examination Paper of Information Technology
exceedingly though to predict how far the eBay economy can go. Whitman professes not to know.
“We don‟t actually control this,” she admits. “We are not building this company by ourselves. We have a unique partner – million of people.”
Questions:
1. Why has eBay become such a successful and diverse online marketplace? Visit the eBay website to help you answer, and check out their many trading categories, specialty sites, international sites, and other features.
2. Why do you think eBay has become the largest online/offline seller of used cars, and the largest online seller of certain other products, like computers and photographic equipment?
Caselet 2
It‟s no secret that somewhere in a back room in the typical Fortune 500 company, there‟s a team of analytical wizards running sophisticated data mining queries that mine for gems such as data about about the company‟s best customers – those top 20 percent of clients that produce 80 percent of the company‟s profits. These jewels can be a business‟s most valuable intellectual property, which makes them very valuable to competitors. What‟s to prevent that data set from walking out the door or falling into the wrong hands? Sometimes, not much. Many companies lack the internal controls to prevent that information from leaking. The problem is that such data is as hard to protect as it is to find. Owens & Minor Inc. (www.ownes-minor.com), a $4 billion medical supplies distributor, counts some of the nation‟s largest health care organizations among its customers. In late 1996, it started mining data internally using business intelligence software from Business Objects SA. “From the beginning, we were aware of security issues around this strategic information about our operations,” says Don Stoller, senior director of information systems at Owens & Minor. “For example, a sales executive in Dallas should only have access to analyses from his region.” It is always possible that someone who has legitimate access will abuse that trust, but companies can minimize that potential by strictly limiting access to only those who need it. thus, Owens & Minor uses role-level security functions that clearly define who has access to which data. “This meant we had to build a separate security table in our Oracle database,” says Stoller. A few years later, when the company wanted to open its systems to suppliers and customers, security became even more important. In 1998, Owens & Minor moved quickly to take advantage of Web-intelligence software from Business Objects that‟s designed to Web-enable business intelligence systems. The result was Wisdom, an extranet Web portal that lets Owens & Minor‟s suppliers and customers access their own transactional data and generate sophisticated analyses and reports from it.“It business-to-business transactions, security is key,” says Stoller. “We had to make absolutely sure that Jhonson & Jhonson, for example, could not see any 3M‟s information. This meant we had to set up specific customer and supplier security tables, and we had to maintain new, secured database views using the Oracle DBMS and Business Objects.”Wisdom was such a success that Owens & Minor decided to go into the intelligence business with the launch of wisdom2 in the spring of 2000. “We capture data out of a hospital‟s materials management system and load it into our data warehouse,” Stoller explains. A hospital can then make full use of its business-intelligence software to mine and analyze purchasing data. Owens & Minor receives a licensing and maintenance fee for the services.Layers of security and encryption require a considerable amount of overhead data for systems administration.
Both Stoller and Michael Rasmussen, an analyst at Giga Information Group, say that‟s the main reason security concerns about business intelligence are often swept under the carpet. The issues of authentication (identifying the user) and authorization (what things the user is allowed to do) must be addressed, usually across different applications, Rasmussen says, adding, “Systems
4
IIBM Institute of Business Management
Examination Paper of Information Technology
administration can be a real nightmare.”“We are going through some of this,” says David Merager, director of Web services and corporate applications at Vivendi Universal Games Inc.
(www.vugames.com). “Our business intelligence needs more security attention.” Business intelligence reports come from two systems: an Oracle-based for budgets on a Microsoft SQL Server database. The heart of the business intelligence system consists of Microsoft‟s OLAP application and software from Comshare Inc. that provides the Web-based front end for the analytics. “Our budget teams use these reports to do real-time analyses,” says Merager. Rodger Sayles, manager of data warehousing at Vivendi Universal, says one way to secure such a system is to assign roles to all users within the Microsoft application. Roles determine precisely what a user is allowed to see and do and are usually managed within a directory. If your computing architecture is amenable to a single, centralized directory that supports roles, this may be an attractive solution. “The problem is that once you have over 40 distinct roles, you run into performance issues, and we have identified about 70 user roles,” Sayles explains. He says there‟s way around this difficulty. “I think we are going to use a combination of Web portals and user roles. A user would sign on through a particular Web portal, which would effectively place the user in a role category. This reduces the overhead burden on the application,” says Sayles.
Questions:
1. Why have developments in IT helped to increase the value of the data resources of many companies?
2. How can companies use IT to meet the challenges of data resources security?
END OF SECTION B
Section C: Applied Theory (30 marks)
This section consists of Long Questions.
Answer all the questions.
Each question carries 15 marks.
Detailed information should form the part of your answer (Word limit 150 to 200 words).
1. Explain distributed systems. What are the advantages and disadvantages of distributed systems?
2. What do you mean by database? List the different types of database model.
END OF SECTIONC
5
IIBM Institute of Business Management
Examination Paper of Information Technology
IIBM Institute of Business Management
Examination Paper
MM.100
Database Management Systems
Section A: Objective Type & Short Questions (30 Marks)
This section consists of Multiple Choice and Short answer type questions.
Answer all the questions.
Part one carries 2 marks each & Part Two carries 5 marks each.
Part One:
Multiple choices:
1. A collection of related sets of data items along with necessary data/ information associated with it.
a. Data
b. Information
c. Process
d. Database
2. ___________connects computers which are very remotely placed.
a. Local Area Network
b. Wide Area Network
c. Both (a) & (b)
d. None
3. A column in a table is called__________
a. Field
b. Record
c. Tuple
d. Link
4. DDL stands for ___________
a. Data Definition Language
b. Data Decision Language
c. Database Definition Language
d. None
5. SQL stands for ___________
a. Structured Query Language
b. Statement Query Language
c. Strict Query language
d. None
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IIBM Institute of Business Management
Examination Paper of Information Technology
Part Two:
1. List the different types of DBMS.
2. Differentiate between „DBMS‟ and „RDBMS‟.
3. What do you mean by „Data Dictionary‟?
4. Differentiate between discretionary access control and mandatory access control.
END OF SECTION A
Section B: Caselets (40 marks)
This section consists of Caselets.
Answer all the questions.
Each Caselet carries 20 marks.
Detailed information should form the part of your answer (Word limit 200 to 250 words).
Caselet 1
Database management system is the complex software which is aimed at the management of the information stored in the database effectively. A high-quality management system helps organize, manipulate, transform, store, retrieve and create data professionally. It is important that the whole information kept in the database could be accessible, manageable, and easy for manipulation. A successful DBMS should possess a strict logical structure, which enables everyone to find the required data easily. The high-quality management system gives the opportunity for the user to change the required information without any harm to the whole application. Database management systems are extremely important today, because the humanity lives in the age of information and the whole information is kept in databases which require professional skilful management and flexibility.
Every organization, private and public, connected with business or not possesses the necessary information which is essential for its proper functioning. The information is supposed to be stored in security and only the employees of an organization can have access to it. The idea of a good database management system is to make the work of an organization easier, faster and of higher quality, because the easier and the faster the access to the data is, the faster the work will be. Moreover, if the information becomes out-of-date, the experts can modify it and introduce the necessary changes to make it valid.
1. What are the roles of a database in present scenario?
Caselet 2
The most dramatic advance of the past decade in software technology has been the development of database management systems (DBMS). There is little question about the potential of these systems for enhancing system support to managers and users while reducing design, structuring, and
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IIBM Institute of Business Management
Examination Paper of Information Technology
maintenance problems. Database systems also provide a way of improving information system flexibility by decoupling user-oriented data structures from physical storage methods. In spite of the vast potential of database management systems, the information systems community has not reacted with the total enthusiasm that might have been expected. Significant resistance has been encountered in some organizations, both from users, systems managers, and programming staff members. Although the literature on the features of database systems is substantial, there is little discussion of resistance problems encountered during the actual implementation and use of these systems in organizations. The purpose of this panel is to examine issues related to resistance toward DBMS in organizations. The panel members, each of whom is experienced in this area, will examine a number of organizational, technical, and application issues pertinent to the problem of resistance. The discussion will focus on why this resistance has occurred and how, if at all possible, it could have been avoided. Both behavioral and technical issues will be examined. This session should be of interest to both the practitioner and theorist alike. Database management systems are collectively the most significant software product advance in the last decade. There is little question about the potential of these systems for improving data management in organizations. Yet not all persons show a level of enthusiasm for these systems that their capabilities would merit. Users and systems persons alike have been known to resist acquisition and/or introduction of database management systems, sometimes strongly. In the discussion that follows, the problem of resistance as it applies to database management systems is introduced. The intent is to raise issues for research and investigation rather than to provide concrete answers to problems.
1. Discuss various anomalies in databases. How would you improve data management in organizations?
END OF SECTION B
Section C: Applied Theory (30 marks)
This section consists of Long Questions.
Answer all the questions.
Each question carries 15 marks.
Detailed information should form the part of your answer (Word limit 150 to 200 words).
1. What do you understand by relational data model? Explain relational constraints and relational database schemas
2. What are the similarities and dissimilarities in the software development life cycle and database development life cycle?
END OF SECTION C
S-2-300813
8
IIBM Institute of Business Management
CONTACT;
DR. PRASANTH MBA PH.D. DME MOBILE / WHATSAPP: +91 9924764558 OR +91 9447965521 EMAIL: prasanththampi1975@gmail.com WEBSITE: www.casestudyandprojectreports.com
Information Technology
Section A: Objective Type & Short Questions (30 Marks)
This section consists of Multiple Choice & Short Note type questions
Answer all the questions.
Part one carries 1 mark each & Part two carries 5 marks each.
Part One:
Multiple Choices:
1. It means data that have been processed in a form that is meaningful and useful to the user.
a. Data
b. Information
c. System
d. None of the above
2. BCR stands for____________
a. Bar code reader
b. Basic code reader
c. Business code reader
d. None of the above
3. Which of the following comes under output devices?
a. Printer
b. Speaker
c. Both (a) & (b)
d. None
4. A trackball is a stationary device related to the_______
a. Keyboard
b. Joystick
c. Mouse
d. All of the above
5. ___________is a volatile memory and everything disappears if power goes off or is turned off abruptly in the middle of work.
a. RAM
b. ROM
c. CDROM
d. None of the above
6. IC stands for____________
a. Integrated Circuit
b. Information Circuit
1
IIBM Institute of Business Management
Examination Paper of Information Technology
c. Interrelated Circuit
d. None of the above
7. DSS stands for____________
a. Decision Support System
b. Direction Support System
c. Both (a) & (b)
d. None of the above
8. How many characters uses the MICR system?
a. 15 characters
b. 18 characters
c. 24 characters
d. 14 characters
9. One Megabyte contains:
a. 1000 KB
b. 1000 Bytes
c. 1000 MB
d. None of the above
10. The smallest element of data is called_______
a. Byte
b. Bit
c. Giga byte
d. None of the above
Part Two:
1. Write a note on „Cache Memory‟.
2. List the different types of information systems.
3. Write a short note on „Value Chain Analysis‟
4. Discuss peer- to - peer model in distributed computing system.
END OF SECTIONA
Section B: Caselets (40 marks)
This section consists of Caselets.
Answer all the questions.
Each caselet carries 20 marks.
Detailed information should form the part of your answer (Word limit 200 to 250 words).
Caselet 1
2
IIBM Institute of Business Management
Examination Paper of Information Technology
It began as a trading site for nerds, the newly jobless, home-bound housewives, and bored retirees to sell subprime goods: collectibles and attic trash. But eBay (www.ebay.com) quickly grew into a teeming marketplace of 30 million, with its own laws and norms, such as a feedback system in which buyers and sellers rate each other on each transaction. When that wasn‟t quite enough, eBay formed its own police force to patrol the listings for fraud and kick out offenders. The company even has something akin to a bank: Its Paypal payment-processing unit allows buyers to make electronic payments to eBay sellers who can‟t afford a merchant credit card account. “eBay is creating a second, virtual economy,” says W. Brian Arthur, an economist at think tank Santa Fe Institute. “It‟s opening up a whole new medium of exchange.” eBay‟s powerful vortex is drawing diverse products and players into its profitable economy, driving its sellers into the heart of traditional retailing, a $2 trillion market. Among eBay‟s 12 million daily listings are products from giants such as Sears Roebuck, Home Depot, Walt Disney, and even IBM. More than a quarter of the offerings are listed at fixed prices. The result, says Bernard H. Tenenbaum, president of a retail buyout firm, is
“They„re coming right for the mainstream of the retail business.” So what started out as a pure consumer auction market-place is now also becoming a big time business-to-consumer and even business-to-business bazaar that is earning record profits for eBay‟s stockholders. And as the eBay economy expands, CEO Meg Whitman and her team may find that managing it could get a lot tougher, especially because eBay‟s millions of passionate and clamorous users demand a voice in all major decisions. This process is clear in one of eBay‟s most cherished institutions: the voice of the Customer program. Every couple of months, the executives of eBay bring in as many as a dozen sellers and buyers, especially its high selling “Power Sellers,” to ask them questions about how they work and what else eBay needs to do. And at least twice a week, it holds hour-long teleconferences to poll users on almost every new feature or policy, no matter how small. The result is that users feel like owners, and they take the initiative to expand the eBay economy – often beyond management‟s wildest dreams. Stung by an aerospace down-turn, for instance, machine-tool shop Reliable Tools Inc., tried listing a few items on eBay in late 1998. Some were huge, hulking chunks of metal, such as a $7,000 2,300-pound milling machine. Yet they sold like ice cream in August.
Since then, says Reliable‟s auction manager, Richard Smith, the company‟s eBay business has “turned into a monster.” Now the Irwindale (California) shop‟s $1 million in monthly eBay sales constitutes 75% of its overall business. Pioneers such as Reliable promoted eBay to set up an industrial products marketplace in January that‟s on track to top $500 million in gross sales this year.Then there is eBay Motors. When eBay manager Simon Rothman first recognized a market for cars on cars on eBay in early 1999, he quickly realized that such high-ticket items would require a different strategy than simply opening a new category. To jump-start its supply of cars and customers, eBay immediately bought a collector-car auction company, Kruse International, for $150 million in stock, and later did a deal to include listings from online classifieds site, AutoTrader.com. Rothman also arranged insurance and warranty plans, an escrow service, and shipping and inspection services.This approach worked wonder. Sales of cars and car parts, at a $5 billion-plus annual clip, are eBay's single largest market. That has catapulted eBay in front of No. 1 U.S. auto dealer AutoNation in number of used cars sold. About half of the sellers are brick-and-mortar dealers who now have a much larger audience than their local area. “eBay is by far one of my better sources for buyers,” says Bradley Bonifacius, Internet sales director at Dean Stallings Ford in Oak Ridge, Tennessee. And for now, the big corporations, which still account for under 5 percent of eBay‟s gross sales, seem to be bringing in more customers then they steal. Motorola Inc., for example, helped kick off a new wholesale business for eBay last year, selling excess and returned cell phones in large lots. Thanks to the initiative of established companies such as Motorola, eBay‟s wholesale business jumped ninefold, to $23 million, in the first quarter.As businesses on eBay grow larger, they spur the creation of even more businesses. A new army of merchants, for example, is making a business out of selling on eBay for other people. From almost none a couple of years ago, these so called Trading Assistants now number nearly 23,000. This kind of organic growth makes it
3
IIBM Institute of Business Management
Examination Paper of Information Technology
exceedingly though to predict how far the eBay economy can go. Whitman professes not to know.
“We don‟t actually control this,” she admits. “We are not building this company by ourselves. We have a unique partner – million of people.”
Questions:
1. Why has eBay become such a successful and diverse online marketplace? Visit the eBay website to help you answer, and check out their many trading categories, specialty sites, international sites, and other features.
2. Why do you think eBay has become the largest online/offline seller of used cars, and the largest online seller of certain other products, like computers and photographic equipment?
Caselet 2
It‟s no secret that somewhere in a back room in the typical Fortune 500 company, there‟s a team of analytical wizards running sophisticated data mining queries that mine for gems such as data about about the company‟s best customers – those top 20 percent of clients that produce 80 percent of the company‟s profits. These jewels can be a business‟s most valuable intellectual property, which makes them very valuable to competitors. What‟s to prevent that data set from walking out the door or falling into the wrong hands? Sometimes, not much. Many companies lack the internal controls to prevent that information from leaking. The problem is that such data is as hard to protect as it is to find. Owens & Minor Inc. (www.ownes-minor.com), a $4 billion medical supplies distributor, counts some of the nation‟s largest health care organizations among its customers. In late 1996, it started mining data internally using business intelligence software from Business Objects SA. “From the beginning, we were aware of security issues around this strategic information about our operations,” says Don Stoller, senior director of information systems at Owens & Minor. “For example, a sales executive in Dallas should only have access to analyses from his region.” It is always possible that someone who has legitimate access will abuse that trust, but companies can minimize that potential by strictly limiting access to only those who need it. thus, Owens & Minor uses role-level security functions that clearly define who has access to which data. “This meant we had to build a separate security table in our Oracle database,” says Stoller. A few years later, when the company wanted to open its systems to suppliers and customers, security became even more important. In 1998, Owens & Minor moved quickly to take advantage of Web-intelligence software from Business Objects that‟s designed to Web-enable business intelligence systems. The result was Wisdom, an extranet Web portal that lets Owens & Minor‟s suppliers and customers access their own transactional data and generate sophisticated analyses and reports from it.“It business-to-business transactions, security is key,” says Stoller. “We had to make absolutely sure that Jhonson & Jhonson, for example, could not see any 3M‟s information. This meant we had to set up specific customer and supplier security tables, and we had to maintain new, secured database views using the Oracle DBMS and Business Objects.”Wisdom was such a success that Owens & Minor decided to go into the intelligence business with the launch of wisdom2 in the spring of 2000. “We capture data out of a hospital‟s materials management system and load it into our data warehouse,” Stoller explains. A hospital can then make full use of its business-intelligence software to mine and analyze purchasing data. Owens & Minor receives a licensing and maintenance fee for the services.Layers of security and encryption require a considerable amount of overhead data for systems administration.
Both Stoller and Michael Rasmussen, an analyst at Giga Information Group, say that‟s the main reason security concerns about business intelligence are often swept under the carpet. The issues of authentication (identifying the user) and authorization (what things the user is allowed to do) must be addressed, usually across different applications, Rasmussen says, adding, “Systems
4
IIBM Institute of Business Management
Examination Paper of Information Technology
administration can be a real nightmare.”“We are going through some of this,” says David Merager, director of Web services and corporate applications at Vivendi Universal Games Inc.
(www.vugames.com). “Our business intelligence needs more security attention.” Business intelligence reports come from two systems: an Oracle-based for budgets on a Microsoft SQL Server database. The heart of the business intelligence system consists of Microsoft‟s OLAP application and software from Comshare Inc. that provides the Web-based front end for the analytics. “Our budget teams use these reports to do real-time analyses,” says Merager. Rodger Sayles, manager of data warehousing at Vivendi Universal, says one way to secure such a system is to assign roles to all users within the Microsoft application. Roles determine precisely what a user is allowed to see and do and are usually managed within a directory. If your computing architecture is amenable to a single, centralized directory that supports roles, this may be an attractive solution. “The problem is that once you have over 40 distinct roles, you run into performance issues, and we have identified about 70 user roles,” Sayles explains. He says there‟s way around this difficulty. “I think we are going to use a combination of Web portals and user roles. A user would sign on through a particular Web portal, which would effectively place the user in a role category. This reduces the overhead burden on the application,” says Sayles.
Questions:
1. Why have developments in IT helped to increase the value of the data resources of many companies?
2. How can companies use IT to meet the challenges of data resources security?
END OF SECTION B
Section C: Applied Theory (30 marks)
This section consists of Long Questions.
Answer all the questions.
Each question carries 15 marks.
Detailed information should form the part of your answer (Word limit 150 to 200 words).
1. Explain distributed systems. What are the advantages and disadvantages of distributed systems?
2. What do you mean by database? List the different types of database model.
END OF SECTIONC
5
IIBM Institute of Business Management
Examination Paper of Information Technology
IIBM Institute of Business Management
Examination Paper
MM.100
Database Management Systems
Section A: Objective Type & Short Questions (30 Marks)
This section consists of Multiple Choice and Short answer type questions.
Answer all the questions.
Part one carries 2 marks each & Part Two carries 5 marks each.
Part One:
Multiple choices:
1. A collection of related sets of data items along with necessary data/ information associated with it.
a. Data
b. Information
c. Process
d. Database
2. ___________connects computers which are very remotely placed.
a. Local Area Network
b. Wide Area Network
c. Both (a) & (b)
d. None
3. A column in a table is called__________
a. Field
b. Record
c. Tuple
d. Link
4. DDL stands for ___________
a. Data Definition Language
b. Data Decision Language
c. Database Definition Language
d. None
5. SQL stands for ___________
a. Structured Query Language
b. Statement Query Language
c. Strict Query language
d. None
6
IIBM Institute of Business Management
Examination Paper of Information Technology
Part Two:
1. List the different types of DBMS.
2. Differentiate between „DBMS‟ and „RDBMS‟.
3. What do you mean by „Data Dictionary‟?
4. Differentiate between discretionary access control and mandatory access control.
END OF SECTION A
Section B: Caselets (40 marks)
This section consists of Caselets.
Answer all the questions.
Each Caselet carries 20 marks.
Detailed information should form the part of your answer (Word limit 200 to 250 words).
Caselet 1
Database management system is the complex software which is aimed at the management of the information stored in the database effectively. A high-quality management system helps organize, manipulate, transform, store, retrieve and create data professionally. It is important that the whole information kept in the database could be accessible, manageable, and easy for manipulation. A successful DBMS should possess a strict logical structure, which enables everyone to find the required data easily. The high-quality management system gives the opportunity for the user to change the required information without any harm to the whole application. Database management systems are extremely important today, because the humanity lives in the age of information and the whole information is kept in databases which require professional skilful management and flexibility.
Every organization, private and public, connected with business or not possesses the necessary information which is essential for its proper functioning. The information is supposed to be stored in security and only the employees of an organization can have access to it. The idea of a good database management system is to make the work of an organization easier, faster and of higher quality, because the easier and the faster the access to the data is, the faster the work will be. Moreover, if the information becomes out-of-date, the experts can modify it and introduce the necessary changes to make it valid.
1. What are the roles of a database in present scenario?
Caselet 2
The most dramatic advance of the past decade in software technology has been the development of database management systems (DBMS). There is little question about the potential of these systems for enhancing system support to managers and users while reducing design, structuring, and
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IIBM Institute of Business Management
Examination Paper of Information Technology
maintenance problems. Database systems also provide a way of improving information system flexibility by decoupling user-oriented data structures from physical storage methods. In spite of the vast potential of database management systems, the information systems community has not reacted with the total enthusiasm that might have been expected. Significant resistance has been encountered in some organizations, both from users, systems managers, and programming staff members. Although the literature on the features of database systems is substantial, there is little discussion of resistance problems encountered during the actual implementation and use of these systems in organizations. The purpose of this panel is to examine issues related to resistance toward DBMS in organizations. The panel members, each of whom is experienced in this area, will examine a number of organizational, technical, and application issues pertinent to the problem of resistance. The discussion will focus on why this resistance has occurred and how, if at all possible, it could have been avoided. Both behavioral and technical issues will be examined. This session should be of interest to both the practitioner and theorist alike. Database management systems are collectively the most significant software product advance in the last decade. There is little question about the potential of these systems for improving data management in organizations. Yet not all persons show a level of enthusiasm for these systems that their capabilities would merit. Users and systems persons alike have been known to resist acquisition and/or introduction of database management systems, sometimes strongly. In the discussion that follows, the problem of resistance as it applies to database management systems is introduced. The intent is to raise issues for research and investigation rather than to provide concrete answers to problems.
1. Discuss various anomalies in databases. How would you improve data management in organizations?
END OF SECTION B
Section C: Applied Theory (30 marks)
This section consists of Long Questions.
Answer all the questions.
Each question carries 15 marks.
Detailed information should form the part of your answer (Word limit 150 to 200 words).
1. What do you understand by relational data model? Explain relational constraints and relational database schemas
2. What are the similarities and dissimilarities in the software development life cycle and database development life cycle?
END OF SECTION C
S-2-300813
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IIBM Institute of Business Management
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