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- 1. Multiple ChoiceWhat is not an example of a component?labeltexttextboxbutton
- 2. Multiple ChoiceWhich is not an example of a property.labelvisibletext
- 3. Multiple ChoiceWhat is a good name for a button whose purpose was t allow the view to refresh the screen.button1buttonOnebuttonrefreshb1
- 4. Multiple ChoiceAn abstraction is not:a characteristic unique to computer programming.a general representation that stands for some collection of individual instances.reduces information and detail to focus on relevant information.in the form of a model could be used to make predictions about the weather.
- 5. Multiple ChoiceWhich of the following would not be literal values as opposed to abstract symbols in a programming language such as App inventor.10paintbrush2.0"hello"
- 6. Multiple ChoiceWhich of the following is not an example of hardware.CPUmemorysoftwarelogic gate
- 7. Multiple ChoiceSuppose your friend wants to create a game app that allows the user to control the movement of the ball by tilting the device. What sensor should you add.location sensororientation sensorgyro sensor
- 8. Multiple ChoiceThe main difference between low-level and high level programming language is:a low level language is easier for humans to understand.a high level language provides abstractions that closely match the machine's architecture.a high level language must be translated by software programs into low-level machine language before they can be run on a computer.a low-level language cannot be understood by computers.
- 9. Multiple ChoiceWhich of the following would be a valid App inventor variable name?5-5"dotsize"dotsize
- 10. Multiple Choice
What type of block is the reset score block?a procedure definition blockcontrol blockevent controllerevent handler - 11. Multiple ChoiceWhich of the following is not true about algorithms:algorithms are a sequence of precise instructions.algorithms can be written to solve every problem.algorithms are step-by-step procedures.algorithms consist of sequences, selections, and repetitions.
- 12. Multiple ChoicePseudocode is not:easy to readnot a programming languagea mixture between a natrual language and a formal programming languagean executable program
- 13. Multiple ChoiceSequencing in algorithms means that each step of the algorithm is executed.in any order the programmer choosesall at oncetwo steps at a timein the order they are given
- 14. Multiple Choicerepetition loop blockselection blockvariable setter blockevent handler
- 15. Multiple ChoiceWhich of the following would not be examples of random events?choosing a ball from a jar of red and black ballsrolling a 12-sided diedealing a hand of pokercounting by 2s up to 20
- 16. Multiple Choice1, and 2 and 31 or 2 or 32
- 17. Multiple ChoiceWhat is the base for the binary number system?1210
- 18. Multiple ChoiceExpress the binary number 001110 in decimal.71214
- 19. Multiple ChoiceConvert 6 to binary11001110001110
- 20. Multiple Choiceheadstails
- 21. Multiple Choice1 or 31 or 2 or 31 or 21
- 22. Multiple ChoiceIn an odd parity scheme, the binary string 1111 0101 would be detected as
containing an error.truefalse - 23. Multiple Choice1234
- 24. Multiple Choice4567
- 25. Multiple ChoiceApp inventor is not an example of which of the following:a cloud applicationAn integrated Development Environmenta software system for developing mobile apps that may be run on Android, IOS or other platformsA programming language
- 26. Multiple ChoiceWhich palette drawer(folder)contains the Player component?The user interface drawerthe media drawerthe drawing and animation drawersocial drawer
- 27. Multiple ChoiceWhich is not a component?buttonlabelbutton.imageplayer
- 28. Multiple ChoiceThe internet is notnetwork of networksinvented by Tim Berners Leeconnects devices and computers around the worldis based on the internet protocol suite
- 29. Multiple ChoiceWhat is a computational artifact?object created by a human that uses computation in some way.created by a computer for programming
- 30. Multiple ChoiceConsider the following pseudocode algorithm:
Set P to 1. Set N to 4. Repeat while N > 0: Set P to the result of multiplying P by N. Subtract 1 from N. Print P
6101224 - 31. Multiple ChoiceHow long is a milliseconda thousand seconds1/0 of a second1/100 of a second1/1000 of a second
- 32. Multiple ChoiceIn an App inventor app, shaking the phone is aeventparameterfunction call
- 33. Multiple ChoiceAn abstraction is a ______representation that stands for some collection of individual instances.generalspecificfixedartistic
- 34. Multiple ChoiceOne of the main characteristics
of an abstraction is that is simplifies a complex phenomenon by leaving out the
irrelevant aspects.truefalse - 35. Multiple ChoiceWhich of the following lists arranges hardware components from the lowest to the highest abstraction level?RAM chip, motherboard, logic gate, physical circuitPhysical circuit, motherboard, logic gate, RAM chipPhysical circuit, logic gate, RAM chip, motherboard,RAM chip, logic gate, physical circuit, motherboard.
- 36. Multiple ChoiceIn general, which of the following is the most abstract when it comes to talking about chairs?The dictionary definition of the word 'chair'.The word 'chair' itself.A picture of a chair.The chair itself.
- 37. Multiple ChoiceA) Input A must be true.B) Input A must be false.(C) Input A can be either true or false.(D) There is no possible value of Input A that will cause the circuit to have the output true.
- 38. Multiple ChoiceWhat element would be considered part of the user interface?a button that appears on the screen.an apps memory usage
- 39. Multiple ChoiceDifference between lossless versus lossy representation is:lossy you may lose part of the file being compressed because Lossy only allows for approximation of the real filefiles gets lost in translation
- 40. Multiple ChoiceAn important programming task is that of refactoring one's code which refers to the process of:reorganizing duplicated code into proceduresdelete codesrevising the code to remove bugsadding new code to change the way a program behaves
- 41. Multiple ChoiceThe main difference between high level and low level programming is:a low level language is easier for humans to understandhigh level language provide abstractions that clossely match the machines architecturehigh level languages provide abstractions that are more easily understood by humanslow level languages cannot be understood by computers
- 42. Multiple Choiceof these two blocks:Block A would draw N at the center on any size deviceblock b would draw N at the center of any size deviceboth block a and block b would draw N at the center on any size deviceNeither block a nor block b would draw N at the center on any size device
- 43. Multiple ChoiceBoth blocks A and B in the previous question are abstractions for solving a certain problem. What can we say about these abstractions:?Block A is a better abstraction because its more specificBlock B is a better abstraction because it is more generalBoth block A and Block B are equally good abstractions because the are specificBoth block a and b are equally good abstractions because they are both general
- 44. Multiple ChoiceA model or a simulation is an abstraction of a real world phenomenon. Which of the following are models?
I. Slot machine that plays a dice game.
II. A computer program that sends and receives text messages.
III. A computer program that is used to forecast the weather.I onlyII onlyI and III onlyI, II, and III - 45. Multiple ChoiceFor which of the following problems would the binary search algorithm be useful?arranging a deck of cars from the lowest to the highest valuelooking up a word in the dictionarylooking up a persons name in the phone book given the persons numberfinding the smallst number in a list of numbers arranged randomly
- 46. Multiple ChoiceA person is trying to determine whether or not a particular person is at a conference. Using a list of the enrolled peoples' names, that is arranged in no particular order, the most efficient way to find if student n is on the list would be toperform a binary searchperform a linear searchSort the list by last name and then perform a binary searchsort the list by last name and then perform a li
- 47. Multiple ChoiceSuppose you are sorting the following list of numbers in ascending order using bubble sort: {16, 5, -1, 4, 12, 17, 3, 10, 5, 916179-1
- 48. Multiple ChoiceIf you encrypt the word "Hello" using the Caesar Cipher with a shift of 2, what secret message would you get?OLLEHJHMMPIFMMPJGNNQ
- 49. Multiple ChoiceIf the following code were executed, what value would X have after Button1 is clicked once? X ← 100 When Button1. Clicked Do X ← X + 1 Please choose only one of the following991001011
- 50. Multiple ChoiceWhich of the following statements correctly describes the calculation being done by the block of code above.Calculates the number of hits divided by missescalculates the total number of missescalculates the total number of hits and missescalculates the rate of hits out of all attempts
- 51. Multiple ChoiceWhat possible values would be assigned to X if the code above was executed?
I.9
II.10
III.11I onlyI or II onlyI, II, or IIII or III only - 52. Multiple ChoiceWhich of the following best describes the result of running the code above?The word Heads would be displayed in Label 1The number 1 would be displayed in Label 1The word Tails would be displayed in Label 1The number 2 would be displayed in Label 1
- 53. Multiple ChoiceAssuming the move_forward tells the Android to move forward by 10 pixels and rotate_right tells it to turn right by 90 degrees, what shape would be drawn by the algorithm above when executed with the pen down?a squarea right anglea rectanglea pentagon
- 54. Multiple ChoiceSuppose in addition to move_forward and rotate_right, as defined in the previous question, your language includes a REPEAT N TIMES block that will repeat a set of code n number of times. Which algorithm(s) would correctly draw a square? I. REPEAT 4 TIMES { rotate_right } move_forward
II. REPEAT 4 TIMES { move_forward rotate_right }
III. REPEAT 4 TIMES { move_forward } rotate_righti onlyii onlyiii onlyi and ii only - 55. Multiple ChoiceWhich of the following best describes the result of running the above code?A square with sides of length 100 pixels will be drawna triangle with sides of length 75 pixels will be drawna pentagon with side of length 75 pixels will be drawna pentagon with sides of length 100 pixels will be drawn
- 56. Multiple ChoiceAn app is designed to send text messages to members who are a part of a members list using their phone number. This app calls the sendMessage method which sends a set text message to the current phone number.If there are three members' phone numbers in the memberList, what would the above block of code do when executed?Sent a different text message to each of the three memberssent the same text message to one member three different timessent the same text message to each of the three memberssent three different text messages to one member
- 57. Multiple ChoiceFind the bug below. When button1.Click is clicked, label1 is supposed to be set to a name that is selected from the names list by the displayName procedure. But the label's Text never changes. WhyThe list is not properly set upThe displayName procedure is not being called when the button is clickedThe displayName procedure has a bug in itThe displayName procedure was never defined
- 58. Multiple ChoiceWhat is the length of the names list?12510
- 59. Multiple ChoiceWhat value will the global variable name have after Button1 is clicked?AbeGeorgeBarackHarry
- 60. Multiple Choice"Large data sets" refers to data sets that _______________.
contain very large numbersare owned by a big corporationare stored in the cloudare too large and complex to download and process on a single computer - 61. Multiple Choice35.) A certain store sells products to customers online. As customers browse the store's web site for products to buy, data is sent to the web site server for each web page the customer clicks on or requests. For each of these web page requests, the following information is collected: > The unique IP address of the customer > The data and time of the request > The type of browser used > The page requested For which of the following goals would you NOT be able to use the data? Please choose only one of the following.Average time a customer spends on a pagenumber of pages a customer views per visitpercentage of new customersamount of money each customer spent on a purchase
- 62. Multiple Choice36.) The Internet and WWW are different because _______________.
I. The Internet is a network of networks.
II. The WWW is an application that runs on the Internet using the HTTP protocol.
III. They are not different, they are two terms that refer to the same thing.
i onlyii onlyiii onlyi and ii only - 63. Multiple Choice38.) A student is using their computer to check their e-mail. Just as the student clicks on the next unread e-mail, a HTTP 500 Internal Server Error occurs. Which of the following best describes why the student received this error? Please choose only one of the following.There is a problem with the clientThere is a problem with the internet connectionThere is a problem with Googles gmail websiteThere is a problem with the DNS
- 64. Multiple Choice39.) The IPv4 system for IP addresses is in the process of being replaced by IPv6. Why?· The IPv4 system is incompatible with the net neutrality principle.IPv6 is a proprietary system that is replacing the open source IPv4 systemThe number of devices requiring an IP address is more than can be handled by IPv4Mobile devices cannot use IPv4 addresses
- 65. Multiple ChoiceThe Ping program is a utility program that _______________.tests the bandwidth of an Internet connection.· traces the route of packets through the Internet.tests whether a host computer is reachable on the Internetis an alternative name for the Pong game.
- 66. Multiple ChoiceSuppose you are the network administrator in charge of switching between networks to improve the performance of your company's internet service. Which of the following choices would represent the best service in terms of the amount of information that can be downloaded and the speed with which it is downloaded?. A network with high bandwidth and high latencyA network with high bandwidth and low latencyA network with low bandwidth and high latencyA network with low bandwidth and low latency
- 67. Multiple ChoiceWhich of the following best describes how an e-mail message is sent through the Internet?· The e-mail is a single packet that is routed through the Internet to the recipient's inbox· The e-mail is divided into packets that are routed individually over the Internet to the recipient's inbox.· The e-mail is divided into packets that are routed through a dedicated channel to the recipient's inbox.· The e-mail is a single packet that is routed through a dedicated channel to the recipient's inbox.
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