INFORMATIKA ANGOL NYELVEN

Transcription

1 Informatika angol nyelven emelt szint 0802 ÉRETTSÉGI VIZSGA október 19. INFORMATIKA ANGOL NYELVEN EMELT SZINTŰ GYAKORLATI ÉRETTSÉGI VIZSGA JAVÍTÁSI-ÉRTÉKELÉSI ÚTMUTATÓ EMBERI ERŐFORRÁSOK MINISZTÉRIUMA

2 Introduction The exercises are marked in accordance with the guide for evaluation given in the key and guide for evaluation. In the key the marks given for the major logical units are in the bordered parts. The parts without bordering contain the breakdown of the marks and reference to situations where the given mark can be awarded or can not be awarded. To ensure unified evaluation, please do not divert from the marking in the guide for evaluation. The marks can not be broken down further than indicated in the guide for evaluation. If several solutions are given for the same problem, please evaluate the solution with the most given marks. In the case of several good solutions no extra marks can be awarded. The evaluation sheet, which only contains the marks for the major evaluation units, can be found at the end of the guide for evaluation. One evaluation sheet should be filled for each examination paper and it should be attached to the examination paper (to the candidate s exercise sheet). The candidate receives this sheet at the seeing of the examination paper. The total marks awarded for the individual exercises, the marks awarded for the exam should also be indicated on the last page of the examination paper, in the tables provided. gyakorlati vizsga / október 19.

3 1. Coffee Creating file banner.jpg The size of the picture is pixels The picture contains a part from all four source files The size of the parts is pixels A deviation of 1 2 pixels can be accepted Creating file cup.gif Drew the two lines of the vapour above the cup and one curve (curved segment) is longer than the other Drew the edge of the cup and the saucer under it (one endpoint of the saucer touches the side of the cup) and these are not closed curves Drew the side and the handle of the cup using one curve (curved segment) for each and the endpoints of the handle are connected to the side of the cup The colour of the shape is brown, RGB code (102, 51, 51) The picture is 130 pixels wide and 150 pixels high Creating file coffeebean.gif Drew a brown circle with RGB code (153, 102, 51) The colours of the GIF files are correct even if the colours are created from a scattered mixture of the shades of brown lighter and darker than specified. Created the stylised coffee bean using brown colour and curved lines according to the example The picture is 150 pixels wide and 150 pixels high Page setup for document coffee is correct The left and right margins of the document are 2 cm, the top and bottom margins are 2.5 cm, the page size is A4 The document contains two pages separated by a break Table on first page The first page contains a table of width 17 cm that has two columns and one row The width of the first column of the table is 5 cm Inserted picture banner.jpg or file substbanner.jpg into the first column Formatting coffee offers Copied the text from file offers.txt into the table on the first page The font type of the title is Courier New and the font size is 28 points For the other text the font type of the coffee names is Times New Roman or Nimbus Roman, the font size is 12 points and the font size of the ingredients is 9 points The font style of the coffee names and Our coffee offers is small caps The distance between coffees is set using spacing The point can be awarded only if no unnecessary line breaks or empty paragraphs were used to set the spacings. gyakorlati vizsga / október 19.

4 The prices are aligned vertically using tabs and the ingredients of the drinks are indented using indents Inserting picture cup.gif Inserted picture cup.gif or substcoffee.gif under the coffees and aligned it centered Table on second page The second page contains a table of width 17 cm without border that has two columns and one row and the width of the second column of the table is 5 cm Inserted picture banner.jpg or file substbanner.jpg into the second column Formatting text The history of coffee Inserted the text from file history.txt into the first column of the table and aligned it justified The formatting of the title is the same as of the title on the previous page (Courier New, 28 points, small caps, spacing after) Italics are set for words caffeine, trigonelline, teophylline and teobromine and the first occurrences of words Coffea Arabica and Coffea Robusta are bold Spacing of 12 points is set both before and after the paragraphs containing the names of the two main types of coffee and the style of the text is small caps Inserting picture coffeebean.gif Inserted picture coffeebean.gif or substcoffee.gif under the text and aligned it centered 30 marks 2. Faster way In the table saved as fasterway the data according to the example are displayed correctly The mark can be awarded if the file name is accurate and the texts that can be read from the example are correct in the suitable cells. (The title is aligned in the first row according to the example.) Formatting the data The font sizes and font types are correct, the title and the numeral data are in italics, each data is bold; the units are displayed correctly (there is a space between the number and the unit) The data are aligned correctly the first two rows are twice as high as the others; the title is aligned centered between cells A1:G1 and is also aligned centered vertically; the headings are aligned centered both horizontally and vertically within the cells; in column F the inscriptions are aligned left, in column G the data are aligned right Setting initial values and times Cells A3:C3 contain 0s and range A4:A1203 contains a data series to 1200 with a difference of one gyakorlati vizsga / október 19.

5 Calculating the distance covered by the trolleybus One cell contains a correct formula Absolute and relative references are used correctly, the formula is correct in each cell of the range B4: =IF(A4<=$G$6;B3;B3+$G$7) or B4: =IF(A4<=$G$6;0;B3+$G$7) Calculating the distance travelled by the walker Criterion is given correctly and the suitable factor is given correctly (for example with function VLOOKUP()) in one cell Calculating speed correctly (multiplying speed by the factor) and calculating the distance covered correctly in one cell Absolute and relative references are used correctly; the formula is correct in each cell of the range C4: =C3+$G$9*VLOOKUP(C3;$F$12:$G$15;2;TRUE) Determining the times required to cover the distance One calculation is correct G17: =INDEX(A3:A1203;MATCH(G4;B3:B1203;1);1) or along with taking the data of column A in column D using references: G17: =VLOOKUP(G3;B1203:D1203;3;TRUE) or the running time of the trolleybus can be given as G17: =G4/G7+G6 Both calculations are correct Displaying the correct advice The advice is formatted according to the description Cells F2:G2 are merged, the advice is aligned centered both horizontally and vertically using red, bold letters of size 14 points Formula is given correctly F2: =IF(G17<G18+10;"Get on the bus";"walk") The solution can also be accepted if only the limiting value is handled incorrectly (using condition G17<=G18+10 ). Any other condition of identical meaning can be accepted. Creating the diagram Displaying range A3:C1203 on the Scatter XY diagram with the labels given in the exercise on a separate sheet Labels title: Distance-time diagram ; X axis: time (s) ; Y axis: distance travelled (m) The scale of the horizontal axis ranges from 0 to 1200; on the diagram the data points are not highlighted with marker 1 gyakorlati vizsga / október 19.

6 3. Student work Creating the database, importing the data Created the database with name studentwork and imported the tables The given fields appear with suitable types The mark can be awarded even if number was set instead of autonumber. Table job contains a unique identifier with name jobid Query 2standin The query contains fields jdate and wages Filtering criterion is correct SELECT jdate, wages FROM job WHERE job="stand-in worker" AND hours=4; Query 3unoccupied Each date appears only once Correct filtering for field studentid SELECT DISTINCT jdate FROM job WHERE studentid is Null; or SELECT jdate FROM job WHERE studentid is Null GROUP BY jdate; Query 4jobopportunities Displays the number of job opportunities (COUNT()) SELECT COUNT(*) FROM job; Report 5perday A report was created using fields jdate, wages, hours, job Groups according to days according to field jdate The records are displayed according to wages in decreasing order Query 6secondary Filtering is correct for the job opportunities offered to secondary school students Connection between the tables is correct Groups according to workplace The mark can also be awarded if grouping is based only on the name of the workplace. Arranges into decreasing order according to average hourly wages (AVG()) Displays only the name of the first workplace SELECT TOP 1 employer.wname FROM employer, job WHERE employer.wplaceid=job.wplaceid AND job.secondaryschool GROUP BY employer.wname, employer.wplaceid ORDER BY AVG(job.wages) DESC; gyakorlati vizsga / október 19.

7 Query 7totalincome Connection between the tables is correct Calculation of money earned is correct for each job (hours*wages) Displays the student s name and the total money earned (SUM()) Groups according to students The mark can also be awarded if grouping is based only on students names. SELECT student.sname, SUM(job.hours*job.wages) FROM student, job WHERE job.studentid=student.studentid GROUP BY student.sname, student.studentid; Query 8deliverer Students names are displayed once Connection between the tables is correct Filters for the naming of the job correctly, uses connection OR between the criteria for deliverer and courier Filters correctly for the year of birth (YEAR()), uses connection AND for this and the previous criterion if that exists SELECT DISTINCT student.sname FROM job, student WHERE job.studentid=student.studentid AND (job.job="courier" OR job.job="deliverer") AND YEAR(student.dateofbirth)>=1988; or SELECT student.sname FROM job, student WHERE job.studentid=student.studentid AND (job.job="courier" OR job.job="deliverer") AND YEAR(student.dateofbirth)>=1988 GROUP BY student.sname, student.studentid; gyakorlati vizsga / október 19.

8 Query 9kos Gives the identifier of the workplace and the date of the work in the auxiliary query or subquery In the auxiliary query or subquery filtering for Kos Péter s name is correct In the query the students name and the date of the work are displayed Kos Péter s name is not displayed in the result The auxiliary query or subquery is incorporated into the query correctly together with setting the criteria for date and workplace, that is, the connections between the used tables and the auxiliary query or subquery are correct The connections between the used tables are correct everywhere The mark is awarded if at least one of the query, auxiliary query or subquery contains several tables and the connections between the tables are correct. 9KosAuxiliary: SELECT job.wplaceid, job.jdate FROM job, student WHERE job.studentid=student.studentid AND student.sname="kos Péter"; and SELECT student.sname, job.jdate FROM job, student, 9KosAuxiliary WHERE job.studentid=student.studentid AND job.jdate=9kosauxiliary.jdate AND job.wplaceid=9kosauxiliary.wplaceid AND student.sname<>"kos Péter"; 4. Colour-image 30 marks The submitted program can be evaluated only if the source file that corresponds to the chosen programming environment exists and it contains the source code required for the solution of the exercise part. During evaluation solutions that produce runtime errors or solutions that are partially good should be evaluated if the part of the code that corresponds to the given mark is flawless. The program given in the solution also displays the image. This was not part of the exercise, it is only meant as a help to the correcting teachers. The image given in the source has the following form: 1 Brown (200, 96, 64) 2 Red (255, 0, 0) 3 Green (0, 255, 0) 4 Blue (0, 0, 255) 5 Magenta (255, 0, 255) 6 Yellow (255, 255, 0) gyakorlati vizsga / október 19.

9 Messages on the screen If there exists an exercise where the exercise number was displayed and there was reference to the content to be read If the number is displayed for at least half of the exercises involving displaying something on the screen and there was reference to the content to be read If the number is displayed for each exercise involving displaying something on the screen and there was reference to the content to be read Processing the input file (image.txt) Opened the file for reading Read at least one data line from the file Stored the read data The mark can be awarded if the data were processed without storing. Read each data Stored each data The marks can be awarded if the data were not stored but processed immediately upon reading. Requesting an RGB code and decision Requested three numbers from the user Decided whether the given colour appears in the image using the program The decision is correct The result is displayed on the screen Counting the colour of the 8 th pixel in the 35 th row Determined the 35 th row and the 8 th pixel correctly Read the colour of the pixel Counted the pixels of the given colour in the 35 th row Counted the pixels of the given colour in the 8 th column Displayed the results on the screen Choosing the colour appearing in most cases from colours red, green and blue Decided for one pixel whether its colour is red, blue or green Counted pixels of at least one colour in the image Counted pixels of all three colours Determined which of the three colours appears in most cases Displayed the colour appearing in most cases Black frame of width 3 pixels Created a frame on at least one side of the image The frame exists on at least one horizontal and vertical side Frame exists on each side The width of the frame is 3 pixels The frame is black 7 marks gyakorlati vizsga / október 19.

10 Writing the data into file Created file framed.txt At least one line of the file contains data The colour of at least one pixel was written into the file using the given format (separated by spaces) One line contains the data of only one pixel The colour of at least 50 pixels was written into the file The colour of each pixel was written into the file Searching for yellow colour Determined for at least one pixel whether it is yellow Determined the row of the first yellow pixel Determined the column of the first yellow pixel Determined the row of the last yellow pixel Determined the column of the last yellow pixel Determined the number of yellow pixels Displayed the first and last pixels on the screen Displayed the number of yellow pixels on the screen 9 marks 4 gyakorlati vizsga / október 19.

11 értékelőlap Azonosító jel: 1. Coffee Creating file banner.jpg Creating file cup.gif Creating file coffeebean.gif Page setup for document coffee is correct Table on first page Formatting coffee offers Inserting picture cup.gif Table on second page Formatting text The history of coffee Inserting picture coffeebean.gif 30 marks gyakorlati vizsga / október 19.

12 értékelőlap Azonosító jel: 2. Faster way In the table saved as fasterway the data according to the example are displayed correctly Formatting the data Giving initial values and times Calculating the distance travelled by the trolleybus Calculating the distance travelled by the walker Determining the times required to cover the distance Displaying the correct advice Creating the diagram 1 gyakorlati vizsga / október 19.

13 értékelőlap Azonosító jel: 3. Student work Creating the database, importing the data Query 2standin Query 3unoccupied Query 4jobopportunities Report 5perday Query 6secondary Query 7totalincome Query 8deliverer Query 9kos 30 marks gyakorlati vizsga / október 19.

14 értékelőlap Azonosító jel: 4. Colour-image Messages on the screen Processing the input file (image.txt) Requesting an RGB code and decision Counting the colour of the 8 th pixel in the 35 th row Choosing the colour appearing in most cases from colours red, green and blue Black frame of width 3 pixels Writing the data into file Searching for yellow colour 7 marks 9 marks 4 gyakorlati vizsga / október 19.