Final Examination Semester 3 / Year 2011

Transcription

1 Final Examination Semester 3 / Year 2011 COURSE : INFORMATION TECHNOLOGY COURSE CODE : BUSS1063 TIME : 2 1/2 HOURS DEPARTMENT : COMMERCE LECTURER : LEE HUAH Student s ID : Batch No. : Notes to candidates: 1) The question paper consists of 4 pages, 4 sections and 27 questions. 2) Answer all questions. 3) Use the Standardized Answer Form for all sections. 4) Return the question paper with your answer booklet.

2 Section A: Choose one proper answer for the following questions. (10 questions X 2 = 20 marks) 1) Some computers are able to maintain simultaneous connections to many users through a technique called A) nanolinking. B) hot syncing. C) spider syncing. D) parallel processing. E) timesharing. 2) Which of these statements is true? A) Software companies could produce error-free products if they were willing to reduce profits. B) Some large software systems, such as Linux, contain no bugs. C) Software testing can prove the existence of bugs, but it cannot prove that the software is 100 percent bug-free. D) Techniques for producing bug-free software are used for critical military applications, but they re too expensive for most other applications. E) All of these statements are true. 3) What does the speed of the computer depend on? A) The architecture of the processor B) The clock speed of the processor C) The word size of the processor D) The number of processors E) All of the above 4) Hard disk drives have the disadvantage that A) they hold less information than CDs do. B) they are more likely to fail than other computer components. C) they cannot be backed up. D) their contents are lost when they lose power. E) All of the above 5) An application program is A) a program that lets users create new applications. B) a program that lets users apply for jobs. C) a program that lets someone use a computer for a particular purpose. D) a program that updates the operating system of a computer. E) none of the above. 1/4

3 6) Which of these is the correct hierarchy for a standard database? A) Database, field, record, table B) Database, table, record, field C) Database, record, field, table D) Database, record, table, field E) Database, table, field, record 7) What happens when you boot up a PC? A) Portions of the operating system are copied from disk into memory. B) Portions of the operating system are copied from memory onto disk. C) Portions of the operating system are compiled. D) Portions of the operating system are emulated. E) None of the above 8) Which of the following does not affect bandwidth? A) The amount of network traffic B) The software protocols of the network C) The type of network connection D) The type of information being transmitted E) The physical media that make up the network 9) Which of the following is not typically performed by management information systems (MIS)? A) Providing detailed reports, summary reports, and exception reports B) Extracting relevant data from databases of the transaction processing systems C) Providing managers with information needed to make decisions D) Making recommendations for improving performance E) Organizing and summarizing data in useful ways 10) Which statement about machine translation is true? A) The most successful programs do word-by-word translation backed up by huge dictionaries containing all known words in both languages. B) The most successful programs extract the meaning of the underlying text then use their understanding of the author s intent to guide the translation. C) Many programs use a statistics-based approach based on a huge number of examples of correct and incorrect translations. D) The most successful machine language programs first translate the source text into a neutral language, usually Esperanto, then translate from the neutral language into the desired target language. E) Computer translation programs are generally written in natural languages such as COBOL or BASIC. 2/4

4 Section B: Key terms test questions. (10 questions X 3 = 30 marks) Explain the following key terms which used in information technology. 1) Social responsibility 2) Decision table 3) Firmware 4) Optical character recognition (OCR) 5) Phishing 6) Firewall 7) Algorithm 8) Relational database 9) Social networking 10) File-management utility 3/4

5 Section C: Short answer questions. (5 questions X 6 = 30 marks) 1) What kinds of computer applications require the speed and power of a supercomputer? Give three examples. 2) Describe three techniques used in game-playing software, and explain how they can be applied to other AI applications. 3) Give three general reasons for the importance of computer networking. 4) Most computer software falls into one of three categories: compilers and other translator programs, software applications, and system software. Describe and give examples of each. 5) Describe at least three functions of an operating system. Section D: Essay questions. (2 questions X 10 = 20 marks) 1) In what ways can computer security protect the privacy of individuals? In what ways can computer security threaten the privacy of individuals? (10 Marks) 2) What is the difference between writing a program and designing an information system? How are they related?. (10 Marks) 000 4/4