NATIONAL SENIOR CERTIFICATE GRADE 11

Transcription

1 NATIONAL SENIOR CERTIFICATE GRADE 11 INFORMATION TECHNOLOGY P1 EXEMPLAR 2007 MARKS: 120 TIME: 3 hours This question paper consists of 9 pages.

2 Information Technology/P1 2 INSTRUCTIONS AND INFORMATION 1. This is a three-hour examination. Because of the nature of this examination it is important to note that you will not be permitted to leave the examination room before the end of the examination session. 2. This question paper consists of THREE questions. Answer ALL the questions. 3. As soon as a disk has been issued, write your name and examination number on the label. The following files have been supplied on the disk: EmpInfo.xls .txt Acronyms.txt 4. Save your work at regular intervals as a precaution against power failures. 5. Read ALL the questions carefully. Do only what is required. 6. At the end of the examination session, you will be required to hand in ONLY the disk given to you by the invigilator. Make sure that ALL the files have been saved on the network as explained to you by the invigilator/teacher. Ensure that ALL files can be read. 7. You may make use of the manuals originally supplied with the hardware and software. You may also use the HELP functions of the software. Java candidates may make use of the Java API files. You may NOT refer to any other resource material. 8. ALL printing of programming questions will take place within an hour of the completion of the examination.

3 Information Technology/P1 3 You have been employed by XYZ Furniture Shop to create a small database to record the personal details of its sales employees. You will also keep track of the sales that each staff employee makes. QUESTION 1: DATABASE 1.1 Create a database called FurnitureDB and then perform the following operations: Import the data from the spreadsheet file called EmpInfo (on exam CD) into a table called EmpTable. The EmpTable should now contain the information about the employees of XYZ Furniture Shop as shown in the table below: Change the field sizes and data types to correspond more appropriately to the data shown in the table. (2) Ensure that the Age field will not assume a value less than 20 and more than 65. (2) Ensure that the EmpCode will allow for TWO characters followed by ONE digit. (2) Set an appropriate primary key for the EmpTable. (1) (2)

4 Information Technology/P The following sales were made by the sales employees, as indicated by the arrows: Bintal Bala Dlamini Sbu Jack Bishu Jack Smith Create a second table called SalesTable using the information in the table above. The field sizes and data types must be appropriate. (3) 1.3 Create a query called AlphaList to display the details of ALL employees in ascending order of LastName and descending order of FirstName. (3) 1.4 Create a query called TotalCost which includes a calculated field to determine the total cost (Quantity * UnitPrice) of each of the sales in the table called SalesTable. Display ALL fields in the query. (2) 1.5 Include an additional foreign field to the SalesTable to provide a relationship between the EmpTable and the SalesTable. Create a one-to-many relationship between the EmpTable and the SalesTable and enforce referential integrity. (4) 1.6 Create a query called FirstSales that displays the LastName and FirstName of all sales employees who have sold 5 or more items in the first half of the year (3) 1.7 Add an additional field called Title to the table called EmpTable. Now create a form called EmpForm that displays ALL the fields. The form should include a combo box for the Title field, which will allow the user to select from the following options: Mr, Mrs or Ms. (4) 1.8 Create a report called EmpReport to show ALL the fields of employees where the FirstName starts with the letter 'J' or 'P'. Also display the average age of these employees at the bottom of the list. (5) [33]

5 Information Technology/P1 5 QUESTION 2: PROGRAMMING The XYZ Furniture Shop has 10 sales employees. Over a certain period only 5 sales employees were able to make sales. The XYZ Furniture Shop has decided to award 2 of its sales employees with a trip to New York. These 2 sales employees must be chosen using the following criteria: The sum of their TWO biggest sale amounts must be more than R5 000,00 (see table in QUESTION 2.3). Their average sales must exceed R2 000,00. It is possible that two employees, or only one employee, or none of the employees will be selected to go on the trip to New York. An employee may only be evaluated once. The process of selection is terminated when the two employees have been selected to go to New York or when all the employees have been evaluated. Write a program/class/class called Competition, that uses methods/procedures and parameter passing to do the following: (In Java, you may also create a driver class called TestCompetition if you choose to.) 2.1 Prompt the user to enter an integer number in the range 1 to 5. (1) 2.2 Write a method/function called getname to enter the name of the employee corresponding to the number obtained in QUESTION 2.1. (Use the data table in QUESTION 2.3.) (4) 2.3 Write a method/function called getarrdata to enter the FOUR best sales figures into an array for the employee selected by the user in QUESTION 2.1 and QUESTION 2.2. Use the data in the table below. Pass the number of the employee as a parameter to the method/function called getarrdata. The four best sales figures for each employee are shown in the table below: 1 Bala Bintal R2 000 R4 000 R3 000 R Sbu Dlamini R3 000 R6 000 R2 000 R Bishu Jack R2 000 R2 000 R2 000 R Smith Jack R1 000 R2 000 R3 000 R Smith Pam R4 000 R5 000 R3 000 R2 000 (6) 2.4 Write a method/procedure called sort that will sort the array of sales figures. You are NOT allowed to use any predefined sort method/procedure that is available in the programming language of choice. (6)

6 Information Technology/P Write a method/procedure called qualify to determine if the employee qualifies to go to New York using the criteria mentioned in the introduction of QUESTION 2, namely: The sum of their two biggest sales amounts must be more than R5 000,00. Their average sales must exceed R2 000,00. The qualify method/procedure must invoke the sort method/procedure you wrote in QUESTION 2.4. The qualify method/procedure must also display the following output: Average sales figure The highest two sales figures The name of the employee A message indicating whether the employee is going to New York or not (12) 2.6 Complete the program/class by invoking the relevant methods or by calling the relevant procedures/functions. Remember that the process of selection must be terminated when the two employees have been selected to go to New York or when all the employees have been evaluated. Assume that the user will enter the number of an employee only once. (15) 2.7 Display the message 'None going to New York' when ALL the employees' numbers have been entered and none meet with the criteria. (2) 2.8 Save a copy of the program/class/classes. (1) 2.9 Change the name of your program/class to CompetitionB and save it. (In Java, if you have created a driver class as well, change the name to TestCompetitionB.) Modify the program/class in such a way that the employee numbers are no longer entered by the user. Instead, the program will randomly generate the numbers in the following way: Generate a random integer number in the range 1 to 5. The user will now be prompted to enter the name and the sales figures of the employee whose number was generated randomly by the program. (The user must still use the data in the table in QUESTION 2.3 as input to test the program.) The program must ensure that the same employee will not be evaluated twice. If a random number has previously been generated, then the program must continue to generate random numbers until there are no previous matches. The rest of the program remains the same according to the specifications stated in QUESTIONS 2.2 to 2.7. (5)

7 Information Technology/P1 7 Sample input and output for QUESTION 2.1 to QUESTION 2.7 (where the user enters the number of the employee): Please enter an employee number: 2 What is the name of employee number 2?: Sbu Dlamini Please enter data for employee number 2 Sales figure 1 please?: Sales figure 2 please?: Sales figure 3 please?: Sales figure 4 please?: Average 3 500,0 Two best sales figures 3 000, ,0 Sbu Dlamini is going to New York Please enter an employee number: 1 What is the name of employee number 1?: Bala Bintal Please enter data for employee number 1 Sales figure 1 please?: Sales figure 2 please?: Sales figure 3 please?: Sales figure 4 please?: Average 2 750,0 Two best sales figures 3 000, ,0 Bala Bintal is going to New York Sample input and output for QUESTION 2.9 (with randomly generated employee numbers): Random Number: 3 What is the name of employee number 3?: Bishu Jack Please enter data for employee number 3 Sales figure 1 please?: Sales figure 2 please?: Sales figure 3 please?: Sales figure 4 please?: Average 1 750,0 Two best sales figures 2 000, ,0 Bishu Jack is not going to New York Random Number: 1 And so on... [52]

8 Information Technology/P1 8 QUESTION 3: PROGRAMMING The XYZ Furniture Shop management team sends out s to their sales employees on a regular basis. The sales employees are complaining about the difficulty they have to read their s because of the number of acronyms the e- mails sometimes contain. The following is an example of an which is stored in the ' .txt' file (on the exam CD): Dear Staff member, Take note that the PC in your office will be upgraded as follows: The RAM will be upgraded to 512 MB. A USB port will be added to the PC. The hard drive will be replaced with an 80 GB hard drive. You may assume that there is only one space between words. Apart from a space, there may be a full stop (. ), a comma (, ) or a colon ( : ) between words. The management team has therefore created a text file called 'Acronyms.txt' (on the exam CD) which contains a list of acronyms together with what each acronym stands for as shown below: USB: Universal Serial Bus ROM: Random Access Memory PC: Personal Computer GUI: Graphical User Interface RAM: Random Access Memory CPU: Central Processing Unit ISP: Internet Service Provider WWW: World Wide Web IP: Internet Protocol DRAM: Dynamic Random Access Memory You are required to write a program/class called Acros with parameter passing to do the following: (In Java, you may also create a driver class called TestAcros if you choose to.) 3.1 Write a method/procedure called readtext to read in data from the text file ' .txt' and to identify and store the acronyms in an array. The method/procedure called readtext invokes/calls a Boolean method/function called testword, that will determine whether a word is an acronym or not. An acronym has the following characteristics: Contains alphabetical characters only (A - Z) Are in capital letters only Contains more than one character (20) 3.2 Write a method/procedure called displayarr to display the acronyms stored in the array. (3)

9 Information Technology/P Write a method/procedure called lookupacr which displays the acronyms in the array and uses the text file 'Acronyms.txt' (on exam CD) to look up and display what each acronym stands for. If the acronym is not found in the text file, then display the acronym and a message 'unknown'. All acronyms NOT found in the 'Acronym.txt' text file, must be stored in a new text file called 'NewAcr.txt'. (12) Sample Input (The ' .txt' textfile) Dear Staff member, Take note that the PC in your office will be upgraded as follows: The RAM will be upgrade to 512 MG. A USB port will be added to the PC. The hard drive will be replaced with an 80 GB hard drive. Sample Output Acronyms in array: PC RAM MG USB PC GB Acronyms with what they stand for: PC: Personal Computer RAM: Random Access Memory MG: Unknown USB: Universal Serial Bus PC: Personal Computer GB: Unknown Sample of contents of the new text file ('NewAcr.txt') for this example: MG GB [35] TOTAL: 120

10 Question Paper Analysis Grid - Grade 11 - LO 1 LO 2 LO 3 LO 4 Question No. AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS AS TOTAL Conceptual Knowledge (K) Marks Marks Marks Marks TOTALS ## 31 LO Totals LO % 0.0% 0.0% 0.0% 100.0% 25.6% 2007/03/20 1

11 Question Paper Analysis Grid Taxonomy Knowledge Areas - Grade 11 - Comprehension & Application (C) Analysis & Problem Solving (A) TOTAL Computer Hardware & Devices Networking Principles System Software e-communications Social, ethical, HCI, etc Career Pathing Algorithm Design Data Structures Database Development Management of Information Programming Spreadsheets Testing User Interfaces Website Development TOTAL Question Totals Marks % 24.8% 0.0% ##### #### #### #### #### #### #### #### #### #### #### #### #### #### 2007/03/20 2