CMPS 209 Final, Fall 2004

American University ; j canal SS of Beirut lame ay UN EhSIP LIBKARY OF BEIRUT Department of Computer Science Fall 04-05 ~~ CMPS 209 ~ Final exam . 90 minutes CAME SON VERSIT . LEBKARY Instructions: [L OF BEIRUT 1. Make sure that you have one answer sheet and a question booklet of 10 pages. 2. Everything you write on the answer sheet should be in HB-2 pencil. 3. Write your name and ID number on both the question and answer sheet. ID NUMBER FULL NAME SECTION ROOM Nicely 500 Wing D Bliss 203 SEAT NUMBER Mrs. Hayat Bohsali INSTRUCTOR Mr. Wassim Mukaddam Ms. Afaf Tabsh SIGNATURE Department of Computer Science Fall 04-05 CMPS 209 - Final exam 90 minutes Programming (20 %) You are hired by ABC Postal Services to develop an application that computes the delivery charges. Three factors are considered when calculating the delivery charges of packages: weight of the package, package type, and type of delivery. The interface for the application is as follows: optLetter optBox xt Weight cmdCalculate Fill in the visual basic code for the event procedure of cmdCal culate to help compute the delivery charges of a package. The company allows two types of packages (letter or box), and two types of delivery service (Fast or Regular). « ABC Postal Services computes the delivery charges according to the following table: Weight <50 grams Weight 250 grams Letter 2250 LL. 20 L.L. per gram Box 4000 L.L. 90 L.L. per gram When the fast delivery option is selected, 50 % of the amount of the bill is added to the bill. The calculated amount should be displayed on a message box. Assume that the weight entered by the user is always a number. Use constants and variables in your code. Sample output for a shipment packaged as a letter whose weight is 250 gram sent using fast delivery service is: Department of Computer Science Fall 04-05 CMPS 209 - Final exam 90 minutes Sfour handwriting should be readable $0 that it can be graded. Option Explicit Private Sub cmdCalculate_Click() Department of Computer Science Fall 04-05 CMPS 209 — Final exam 90 minutes Flowcharts (10 %) Develop a flowchart for a program that asks the user to enter two numbers. In case the first number is double the second number, the program will display the sum and the product of the two numbers entered by the user/ Otherwise, the program will keep on subtracting three from the larger number until it becomes less than or equal to the smaller. When done, the program will display how many times it repeated the subtraction step. Department of Computer Science Fall 04-05 CMPS 209 — Final exam 90 minutes SAMPLE Multiple Choice (70%) 1, Which binary coding scheme is typically used for microcomputers? a) Unicode b) ASCII c) EBCDIC d) None of the above . Which of the following is another name for a chip? a) Silicon chip b) Integrated circuit c) Semiconductor d) All of the above . Computers require to power their electronic.components and to represent data and instructions. a) direct concurrency (DC). b) direct current (DC). c) direct adapters (DC). d) direct units (DU). . A variety of specialized processing chips has been developed:called a) central processing unit (CPU). b) microprocessor chips. c) coprocessor chips. d) control units. . How many bits are there in a:byte?: a) 20 b) 4 c) 16 d) 8 . The most common type of monitor used in offices and homes is this kind of monitor. a) Liquid:crystal.display b) Data projectors c) Cathode-ray tube d) None ofthe above . The most common types of output are a) text, resolutions, and graphics. b) graphics, resolution, and pixels. c) text, graphics, audio, and video. d) text, graphics, and input. . Which of the following is not an example of an input device? a) Mouse b) Scanner c) Printer d) Keyboard Department of Computer Science Fall 04-05 CMPS 209 - Final exam 90 minutes . The most common way to input data into a computer is with a a) light pen. b) keyboard. c) scanner. d) touch screen. . Which of the following devices performs a function similar to that of a mouse? a) Touch surface b) Touch screen c) Wand reader d) Light pen . Voice recognition systems use: a) head tracking, a sound card, and special software. b) a joystick, a sound card, and special software. c) a microphone, a sound card, and special software. d) amicrophone, an alternative mouse, and special software. . One of the following is not an example of a floppy diskette. a) Zip disk b) SuperDisk c) Hard disk d) HiFD disk . Floppy disks utilize this to protect the disk from accidentally erasing data. a) Write-protect notch b) Lock-up notch c) Storage-protect notch d) Read Only notch . The internal hard disk‘of'a:system unit is also called a a) hard-disk cartridge. b) PC card hard disk. c) fixed disk. d) hard-disk:pack. . For most microcomputer systems, the internal hard drive disk is designated as the a) D Drive. b) A Drive. c) J Drive. d) C Drive. . A typical microcomputer's internal hard disk has a a) motor, system board, and read/write heads. b) motor, read/write heads, and four metallic platters sealed inside a container. c) read/write heads, system board, and a jewel box. d) none of the above Department of Computer Science Fall 04-05 CMPS 209 - Final exam 90 minutes 17. Which of the following secondary storage devices does not have moving parts? a) Hard disks b) Solid-state storage devices c) Read/write heads d) All of the above . Three types of compact disks include CD-ROM, CD-R, and a) CD-W. b) CD-RAM. c) CD-DVD. d) CD-RW. _ Select one of the following that is a basic element of every communication system. a) Sending and receiving devices b) Communication channel c) Data transmission specification d) All of the above . The concept of linking people and resources via computer networks is known as a) computer linkage. b) embedded system communication (ESC). c) connectivity. d) objectivity. . A modulator-demodulator is more:commonly known as the a) communication module. b) satellite receiver. c) modem. d) serial data port. _ The term used as'a‘measurement of a communication channel's data capacity is a) broadband. b) bandwidth. c) protocol. d) data flow. . The standard protocol (communication rules for exchange of data) of the Internet is a) TCP/IP. b) Novell Netware. c) Banyan Vines. d) Peer-To-Peer Lines. . The central host computer or file server in a star network maintains control with its connecting devices through a) sharing. b) networking. c) enterprise computing. d) polling. Department of Computer Science Fall 04-05 CMPS 209 — Final exam 90 minutes 25, 26, 27. 28. 29, 30. 31. The network strategy extensively used throughout the Intemet is a a) terminal network system. b) peer-to-peer network system. c) client/server network system. d) none of the above. Which of the following is the best data Type to use for a variable that will always contain whole numbers in the range 0 to 20,000? a) Currency b) Integer c) Long d) Single e) Variant Which of the following constants tells Visual Basic to advance to the next line? a) Advance b) VbGoToNewLine c) VWbAdvance d) VbReturn e) None of the above You can use a(n) control to execute code at regular intervals. a) Clock b) Interval c) Time d) Timer e) None of the above Assume the form contains two frame:controls: one frame control contains two option buttons; the other frame control:contains three check boxes. What is the total number of option buttons:and.check boxes'that can be selected at any one time? a) One b) Two c) Three d) Four e) Five What is the result of the expression 23 - 32/4%2+6 a) -47 b) 27 c) -2 d) 11.0625 e) none of the above Which of the following is a valid condition for an If..Then.. Else statement a) Val(txtAge.txt > 65) b) Val(ibiprice.caption) > 0 and < 10 c) Cursales > 100 and curCost <=1000 d) UCase(strState) = “Alaska” Not and Ucase(strState)= “Hawaii” e) None of the above 8/10 Department of Computer Science Fall 04-05 CMPS 209 - Final exam 90 minutes 32. Assume you want to compare the string contained in the Text property of the txtName control. With the name Bob. Which of the following conditions should you use in the If....Then...Else statement?(Be sure the condition will handle Bob, BOB,bob, and so on.) a) TxtName.text="BOB” b) Txtname.text=Ucase(““BOB”) c) Txtname.text=Ucase(“Bob”) d) Ucase(txtName.Text)="Bob” e) Ucase(txtName.Text)= “BOB” _ Which of the following will prompt the user for a number, then correctly assign the user’s response to the sngNum Variable? a) InputBox(“Enter the street number:”,” Number”) = sngNum b) sngNum= InputBox(“Enter the street number:”,” Number”) c) Number= val(InputBox(“Enter the street number:”,”sngNum”)) d) sngNum= val(InputBox(“Enter the street number:”,’Number”)) e) None of the above _ Assume the intNumber variable contains the number 200. What value will be in the intNumber variable after the following selection structure is processed? Tf intNumber <=100 Then intNumber= intNumber*2 ElseIf intNumber >500 Then intNumber= intNumber*3 EndIf a) 0 b) 200 c) 400 d) 600 35, What is the output of the following nested if statement when X=209 ? If X>10 then MsgBox “X is in the order of 10’s” Elseif xX>100 MsgBox “X is in the order of 100’s” Blseif X>1000 MsgBox “X is in the order of 1000's” Else MsgBox “X is between 0 and 10 ” Department of Computer Science Fall 04-05 CMPS 209 — Final exam 90 minutes 36. Write a VB statement to display the message box shown below: amani ‘ youiteed tim for 3 dey. Teach a man‘to fish and you feed bim For-a Mfetime. 37. What goes wrong when a user clicks on the cmdButton control? Explain your answer Private Sub cmdButton_Click() Dim intOne As Integer, intTwo As Integer, intThree As Integer intOne = 25000 intTwo = intOne intThree = intOne + intTwo MsgBox intThree End Sub KAKKKKKEKRKEKKA END OF EXAM KARKAKKKKKKKKAE