Math & Comp. Sci. Dept Exam 2

Herbert Lehman College CIS 211

Math & Comp. Sci. Dept Exam 2

Instructor. R. Diop M.S. Date______

Last Name:______First Name:______

Total pts: 102

True/False

Indicate whether the statement is true or false.(1 pt each)

____ 1. In the face of the slowdown in the economy, many organizations are canceling video teleconferencing meetings and replacing it with business travel in order to save on costs.

____ 2. Microwave is a high-frequency signal sent through the air via line-of-sight, often between earth based stations or between earth-based stations and satellites.

____ 3. A PAN can be used to connect a laptop, digital camera, and portable printer without cables or wires.

____ 4. The B2B market is considerably smaller than the B2C market although it is growing more rapidly.

____ 5. The market for mobile commerce in North America is maturing much later than in Western Europe and Japan.

____ 6. Although conversion to an e-commerce or m-commerce system enables organizations to reduce the cost of business, it seldom results in increased accuracy of order processing and order fulfillment.

____ 7. The Secure Sockets Layer communications protocol secures sensitive data involved in e-commerce but without the use of encryption.

____ 8. Data mapping is the examination of each data item required for a new ERP system and determining the number of bytes required for data storage.

____ 9. Programmed decisions are made using a rule, procedure, or quantitative method.

____ 10. Since an MIS helps make decisions about internal problems, only internal data need be entered to the MIS.

____ 11. Internal auditing involves analyzing the internal financial condition of the firm.

____ 12. Product development data yields valuable information for the development and marketing of new products.

____ 13. DSS and MIS systems are actually quite similar in numerous ways, including the types of problems solved, the support given to users, and the decision emphasis and approach.

____ 14. No computer has passed the Turing Test that attempts to determine whether the responses from a computer with intelligent behavior are indistinguishable from responses from a trained, laboratory monkey.

____ 15. Disadvantages associated with expert systems are that they can be difficult, expensive, and time consuming to develop.

Multiple Choice (2pts each)

Identify the choice that best completes the statement or answers the question.

____ 16. The ____ is a device that converts a signal from one form into a signal of another form and sends it through a medium.

____ 17. ____ is the standard page description language for Web pages.

____ 18. ____ is a subset of e-commerce that involves electronic transactions between consumers and a third party to facilitate the process.

____ 19. A(n) ____ is a single Web site that offers many products and services at one Internet location.

____ 20. Poor Web site performance frequently leads to ____.

____ 21. The performance of decision support systems is typically a function of decision quality and ____.

____ 22. The ____ system provides for the gathering of anonymous input, allows for the exchange of information and expertise among people without direct face-to-face interaction, and support many difference decision-making approaches.

____ 23. After knowledge is created, it is typically stored in a ____.

____ 24. At the initial artificial intelligence conference at Dartmouth College in 1956, many AI pioneers predicted that computers would be as “smart” as people by the ____.

____ 25. Graphic images can be stored in a variety of formats including ____.

____ 26. ____ is an audio file format.

____ 27. The elimination of intermediate organizations between the producer and the consumer is called ____.

____ 28. ____ divides the pool of potential customers into subgroups usually defined in terms of demographic characteristics.

____ 29. ____ involves updating one or more databases with new transactions.

30. ICANN created a______domain to help attract mobile users to the Web.

a.  .mobi c. .html

b.  cloud d. .php

Completion (3 pts each)

Complete each statement.

31 A(n) ______is a network device that forwards data packets across two or more networks.

32. The amount of storage capacity and computing power required of the e-commerce Web server depends on two things: the software that must run on the server and the ______.

33. ______certificates are used to ensure that e-commerce transactions are made between the intended parties.

34. Transaction processing systems typically involve the processing of ______input and output than MIS systems.

35. A(n) ______is a computer system capable of assembling, storing, manipulating, and displaying data identified according to its location.

36. ______decisions are made using a rule, procedure, or quantitative method.

37. ______are commonly accepted guidelines or procedures that usually find a good solution.

38. ______allows a computer to understand and react to statements and commands made in a “natural” language, such as English.

39. Government-to-citizen, government-to-business, and government-to- ______are all forms of e-Government, each with different applications.

40. An e-commerce organization must have adequate hardware ______to avoid a major business disruption in the case of a failure of the primary Web server.

41. Data ______ensures the validity and completeness of input data.

Short Answers (8pt each). Select any (3) of the below questions and respond with 3-5 sentences. May complete all for extra credit.

42. Define cloud computing and identify the business benefits of cloud computing.

43. Identify and briefly discuss the key technology infrastructure components required to support e-commerce.

44. Briefly describe the five stage decision making process.

45. Identify and briefly define several specialty areas of artificial intelligence.

Exam 2

Answer Section

TRUE/FALSE

1. F

2. T

3. T

4. F

5. T

6. F

7 F

8. F

9. T

10. F

11. T

12. T

13. F

14. T

15. T

MULTIPLE CHOICE

16. B

17. A

18. C

19. B

20. A

21. B

22. B

23. A

24. B

25. B

26. D

27. A

28. C

29. B

30. A

COMPLETION

31. Router

32. volume of transactions that must be processed

33. Digital

34. more

35. geographic information system

36. Programmed

37. Heuristics or “Rules of thumb”

38. Natural language processing

39. government

40. backup

41. editing

Short Answers (your answers must be very similar to receive full credit)

53.

Cloud computing refers to a computing environment where software and storage are provided as an Internet service and accessed with a Web browser. By outsourcing business information systems to the cloud, a business saves on system design, installation, and maintenance. Employees can access corporate systems from any Internet-connected computer using a standard Web browser. Some companies, such as Microsoft and Google, provide free online storage for access from any Internet-connected computer.

54.

Successful implementation of e-commerce requires significant changes to existing business processes and substantial investment in IS technology. Key infrastructure components include hardware, Web server software, and e-commerce software. A Web server platform complete with the appropriate software and sufficient storage capacity and computing power are required.Web server software is needed to perform fundamental services including security and identification, retrieval and sending of Web pages, Web site tracking, Web site development, and Web page development. E-commerce software is need to create and update the product catalog, perform product configuration , shipping cart facilities to track items selected for purchase, e-commerce transaction processing, and Web traffic data analysis.

55.

The first stage of the problem-solving process is the intelligence stage wherein you identify and define potential problems or opportunities as well as investigate resource and environmental constraints. During the design phase, several alternative solutions to the problem are identified and evaluated for their feasibility. During the choice stage, a course of action is selected. During the implementation stage, the solution is put into effect. In the monitoring stage, the decision makers evaluate the implementation to determine whether the anticipated results were achieved and to modify the process in light of new information.

56.

Expert systems consist of hardware and software that stores knowledge and makes inferences, similar to those of a human expert. Robotics involves developing mechanical or computer devices that can paint cars, make precision welds, and perform other tasks that require a high degree of precision or that are tedious or hazardous for humans. Vision systems include hardware and software that permit computers to capture, store, and manipulate visual images. Natural language processing also a computer to understand and react to statements and commands made in a natural language. Learning systems are a combination of software and hardware that allows a computer to change how it functions or reacts to situations based on feedback that it receives. A neural network is a computer system that can act like or simulate the functioning of the human brain.