Ap computer science unit 2 exam answers

Some programming statements allow us to- decide whether or not to execute a particular statement, or execute a statement over and over. Note The provided source code is intended to work with the 2023 AP CS A course. Assume that index1 is a number between 1 and LENGTH (theList) , inclusive, and index2 is a number between 2 and LENGTH (theList) - 1 , inclusive. Topics. each device or computer on the Internet is assigned a unique IP address. In part (a) point 1 was earned because the integer total is initialized and is accumulated in the body of the for loop. Teacher 20 terms. The course follows the given alternative outline not provided in the AP Course and Exam Description: 1. - dots that combine to create an image on a computer monitor. Repeating until the sum is greater than 100. The two calls will result in the same number of lines of code being executed. 1 / 27. If you’re using assistive technology and need help accessing the PDFs in this section in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at ssd@info. Edhesive AP CS A Unit 2: Using Objects QUIZ ANSWERS Learn with flashcards, games, and more — for free. print((a == !b) != false); What is printed as a result of executing this code segment Botnet. distributed computing. A procedure (function) must be called once in order to be useful. The retro bug is returned to its previous direction, which, in this case, is the same as the current direction. Peer-to-Peer Networking and End Devices. From the list provided choose the two (2) answers that correctly describe which internet protocol relies on the other. Indicate all of your answers to the multiple-choice questions on the Choose 2. for (int i=2; i<10,i+=2. The class contains variables to represent the following. C, 3. cam2delgrosso. Duration: 5+ hours. Throughout the unit, students study primitive data types in Java, mathematical expressions and operators, boolean expressions, conditionals, using objects, and calling a protocol for computers to request and share the pages that make up the world wide web on the Internet. Fill in the blanks on the following for loop header so that the code prints the numbers: 9 8 7 6 5 4 3 2 1. a = 2. 164 terms. The AP Computer Science Principles end-of-course exam has consistent question types and weighting every year, so you and your students know what to expect on exam day. Increasing the bit depth of the music being digitized. There is only one data type which can be held by an ArrayList. AP Computer Science - Unit 5 answers. d1. b. The algorithm can work on any lost or array, but is quite slow for large lists. This content remains available for classes that still use GridWorld. Step 4: Repeat steps 2 and 3 until only one person is standing. each 'color channel' gets a value in the range: 0 - 255! Which means each color channel can be represented with 8 bits. Videos are available in AP Classroom, on your Course Resources page. Most commonly, an attacker computer will call on "zombie" computers, which will all bombard the victim. 13. The method call matches the signature of the third method, with name mystery, and parameters of an int followed by a double. If there are multiple parts to this question, write the part letter with your response. org. All free-response questions assess Computational Thinking Practice 3: Code Implementation, with the following focus: Question 1: Methods and Control Structures—Students will be asked to write program code to create objects of a class and call methods, and satisfy Terms in this set (15) A student has created a Book class. 64 terms. Phishing. The object story will be declared as type Book. B. The following procedure controls the movement of a triangle shaped robot on a grid. - each pixel gets 3 values (RGB) - 3 values together makes a color. 6 min read AP Computer Science A Cram Unit 2: Using Objects. "main" is a reserved word. Unit 5 Vocab Learn with flashcards, games, and more — for free. Study with Quizlet and memorize flashcards containing terms like Consider the following program segment. Bit rate. Unit 2- AP Computer Science Principles questions & answers 20231. ap comp unit 6 test Learn with flashcards, games, and more — for free. Sample: 3C Score: 3. It implies that the findings from the The retro bug acts once and later calls restore. and more. Explore quizzes and practice tests created by teachers and students or create one from your course material. slides by Takeisha Moranza. C. The number of hours bob studied was 2 hours, so 2 was passed in as an argument to the study method. out. Note that the flower that was originally in front of the retro bug is not replaced as a result of the call to restore. I and III. The following is true of how computers represent numbers. convert the decimal (base-10) number 20 to binary (base-2) 10100. An exception will be thrown. You will write two methods of the Game class. Bandwidth. Unit 2 AP Computer Science A Practice Exam Objects, Classes, and the String and Math Classes Section I – Multiple Choice Optional Time – 25 minutes 20 Questions (A) define a type. Feb 28, 2020 · This video part 2 of the full in-depth review of AP Computer Science A Unit 2: Using Objects! In this video, I review all topics from the unit according to t AP Computer Science A AP Computer Science A - CodeHS. Which of the following assumptions should the company make about the processing speeds of the hardware which will be used to run this Jul 16, 2021 · AP CSA students’ strongest performance was on Unit 4, Iteration. NumberMat Class. An organization raises money by selling boxes of cookies. Values are sent in from main. Latency is the amount of data (measured in bits) that can be sent in a fixed amount of time. Skill. 3. Procedures (Functions) must return a value (a boolean, number, d. Teacher 21 terms. to/3RGN8ii ⬅️🎧🚀 F Section II: Free Response. 17 terms. May 8, 2024 · Students with documented disabilities may be eligible for accommodations for the through-course assessment and the end-of-course exam. , What is the output to the console after the following code segment is executed? 1 var x = 10; 2 Course Overview. Consider the following code segment. Accessor methods must return type void. computing system-a group of connected computers that can send or receive data. Iterations = Loops The types of loops: For Loops: repeat a task as many times as the “for” statement mentions. 4 MC Answers and Review; AP Computer Science A MCQ & FRQ. Study with Quizlet and memorize flashcards containing terms like Braces are used to add clarity and descriptions to code. Study with Quizlet and memorize flashcards containing terms like Computer Simulations, Digital Certificates in Web Browsers, Fault Tolerant and more. AP Computer Science Unit #2. Computer Science. Section I: End-of-Course Multiple-Choice Exam. Fill in only the ovals for numbers 1 through 40 on your answer sheet. May 29, 2024 · When web developers specify color values for text or backgrounds, they normally use an RGB or Hexadecimal value. Students will learn to create and implement computer programs that solve problems relevant to today's society, as well as deploy Made for any learning environment, AP teachers can assign these short videos on every topic and skill as homework alongside topic questions, warm-ups, lectures, reviews, and more. This innovative curriculum is designed to engage all students, while also providing rigorous preparation for the AP Computer Science Principles exam. semmons11968. AP® Computer Science A. Location class practice test; Grid interface practice test; GiraffeCritter free response practice; GridTools free response practice; Connect 4 in GridWorld practice; AP Computer Science Exam Answers 56 terms. defines the amount of Red ,Green and Blue light in a pixel. AP Computer Science A has been audited and approved by College Board to provide students with a college-level learning experience. Two devices must communicate using the same bit-rate to successfully send and receive digital data. AP® Computer Science A Exam SECTION I: Multiple-Choice Questions DO NOT OPEN THIS BOOKLET UNTIL YOU ARE TOLD TO DO SO. a copy of the reference to the object. Student guides are available below. Increasing the sampling rate of the music being digitized. Precondition: r is a valid row index in array2D. 4. Step 2: Each standing person pairs up with one other standing person. Simple I/O 2. • Resolution: Screen resolution is the number of pixels on a screen as arranged vertically and horizontally, and density is the number of pixels per a given area. The last of the 3 basic structures in computer science is Iteration. Internet. Step 4: Otherwise, place the card on top of the pile to your right. In writing solutions for each question, you may use any of the accessible methods that are listed in classes defined in that question. This question involves manipulating a two-dimensional array of integers. 11 terms. Flow Control. computing network-a group of computers working toge Short for "picture element" it is the fundamental unit of a digital image, typically a tiny square or dot which contains a single point of color of a larger image. There is enough data that traditional data processing applications are inadequate. I - line 6, II- line 13. an ordered sequence of characters. String. Rectangle class. E, 13 more Original free-response prompts for AP® Computer Science A that mimic the questions found on the real exam. This repository contains all the answers for units 1 - 10 in the APCSA CodeHS Java course. score = 70. Inheritance defines a relationship between _______ that share characteristics. polymorphic. Mar 17, 2021 · Study guide and exam review for Unit 2: Using Objects. Quiz yourself with questions and answers for AP Computer Science Principles unit 2 test, so you can be ready for test day. The principle states that, whenever possible, communications protocol operations should be defined to occur at the end-points of a communications system, or as close as possible to the resource being controlled. 8 bits/sec. This page lists resources for you and your students to practice AP CSA FRQs. a. The two written-response questions Study with Quizlet and memorize flashcards containing terms like Consider the following method: public static int mystery(int[] nums) { int total = 0; for (int k = 0; k < nums. Array: An array is a fixed-size collection of elements of the same type stored in contiguous memory locations. Formal parameter is the one in the method. The value can be changed, but it updates for all instances of the class. Pick two statements that are true about the Internet Protocol (IP): 1. A static method does not need an instance to be used. An int variable called pages to represent the number of pages. AP Computer Science A: Unit 2 Exam. Review the fundamentals of digital data representation, computer components, internet protocols, programming skills, algorithms, and data analysis. Select two answers. 70 multiple-choice questions | 120 minutes | 70% of score | 4 answer options. Step 1: Pick up the shuffled deck of cards. println("XYZ"); What is printed when the program is executed? 4. Packet Metadata. Multiple Choice. alex06986. The end-of-course exam includes multiple-choice questions and two questions that require you to write responses that demonstrate your understanding of the Create performance task. Intro To Soc - Exam 1 Hello world 0. a reference to the array. Dot notation is the usage of a period, or dot, to call a method on an object. Add Unit 2 (Using Objects) Add Unit 3 16. Teacher guides with solutions are available through teachers’ AP Organized by unit, you will find the necessary activity files to be compiled by the Java environment, as well as runner files provided by Project Stem to test execution (when available). AA306 test #1. Procedures (functions) make programs less complex by reducing identical code. 59 terms. public class Game { private Level levelOne; private Level levelTwo; 2024 AP Computer Science A Free Response Question answer My answers, as accurately as I can remember, for the AP CSA FRQs. static. A set of rules governing the exchange or transmission of data between devices. Mostly individual questions, with one or two sets of multiple questions (typically two or three questions per set). println("ABC"); System. jurassicparklover04. Amy_Soquet. AP Computer Science Chapter 2 vocabulary Learn with flashcards, games, and more — for free. a computer network consisting of interconnected networks that use standardized, open (non proprietary) communication protocols. Scoring guidelines for the Create performance task written response prompts will be unique every year and are not provided in advance. Event-driven programs do not implement algorithms. [banana,apple] Note: The GridWorld Case Study is no longer tested on the AP CS A Exam. Study with Quizlet and memorize flashcards containing terms like Consider the following variable declarations and initializations. Exam Weighting (Multiple-Choice Section) Play of the game is represented by the Game class. IP is a secret protocol shared between the sender and the receiver. When you pass an object to a method, the method receives _________. What is the largest possible value that the variable x can have after the code segment executes? 50 of 50. Study with Quizlet and memorize flashcards containing terms like Expression, Assignment Operator, Variable and more. Our expert authors also provide an exemplary response for each AP free response question so students can better understand what AP graders look for. Use the ___ method to copy elements from one array to another. Wᴇʟᴄᴏᴍᴇ ᴛᴏ ʀ/SGExᴀᴍs – the largest community on reddit discussing education and student life in Singapore! SGExams is also more than a subreddit - we're a registered nonprofit that organises initiatives supporting students' academics, career guidance, mental health and holistic development, such as webinars and mentorship programmes. Protocol. none of the above. That there is so much data it's virtually impossible to process. Year & Problem Number. The AP Computer Science A course requires a minimum of 20 hours of hands-on lab experiences. AND. ashbenedick. . color encoding scheme. 40 multiple-choice questions. Data (CED Unit 1) a. Study with Quizlet and memorize flashcards containing terms like What is an inheritance hierarchy?, How do you access the class above the current one in the hierarchy?, How can you tell if something should be in an inheritance hierarchy? and more. A bit is the single unit of information in a computer, typically represented as a 0 or 1. It includes PDFs, pre-entered code, and autograded Practice Problems for FRQs from past exams. -A methodical, logical rule or procedure that guarantees solving a particular problem. May 8, 2024 · 2024 AP Computer Science A Exam Guide . Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere. nadineghamlouche. A static field/variable has the same value for all instances. org Apr 30, 2024 · About the Exam. T. APCSA curriculum in Javaap csa unit 2 ️ Great AP CSA Exam Review Book: https://amzn. Three AP Computer Science A labs are available as exemplars to support the implementation of at least 20 hours of hands-on lab work in the classroom. Download free-response questions from past AP Computer Science A exams, along with scoring guidelines, sample responses, and scoring distributions. org units with tags such as codedotorg-unit-1-csa. Discover the different components of the Internet, including the physical layer (Ethernet, Fiber, WiFi), different protocols (IP, TCP, UDP, DNS, HTTP), and the World Wide Web. RGB values are comprised of three decimal values like (45, 0, 255) where the values correspond to the amounts of red, green and blue that comprise the color. -a finite set of instructions that accomplish a task. AP Computer Science A FRQ Center. It often happens through email. The robot is initially in the middle of the grid facing toward the bottom. Ismn 2040 Exam 2 Kalgotra. The AP Computer Science A framework included in the course and exam description outlines distinct skills, called computational thinking practices, that students should practice throughout the year—skills that will help them learn to think and act like computer scientists. 1. Software Engineering & Computer Vision. AP computer science unit 2 quiz for 9th grade students. Study with Quizlet and memorize flashcards containing terms like Which of the following is FALSE about event-driven programs?, Which of the following is true of procedures (functions)? Choose 2. Selection. e. ap computer science unit 6 test. org’s AP® CSA curriculum. You will write two static methods of the ArrayResizer class, which is shown below. Point 2 was earned because all elements of the array allReviews are accessed correctly, and there are no bounds errors. setBreed ("Chocolate Labrador"); Pixels. Quiz yourself with questions and answers for AP Computer Science Principles - Unit 10 Test Review, so you can be ready for test day. Institution. Step 3: The shorter member of each pair sits down. When a fixed number of bits some numbers are too large to represent in a computer which will lead to the overflow errors. They allow for the organization and manipulation of data in a two-dimensional manner. A method that has been overridden in at least one subclass is said to be _______. determines which parts of an algorithm are executed based on a condition being true or false. B, 3. The AP Computer Science Principles Exam has two sections: an end-of-course exam and the Create performance task. Consider the following method which makes use of the shapes. You can now use Albert’s AP® Computer Science A content alongside code. Begin your response at the top of a new page in the separate Free Response booklet and fill in the appropriate circle at the top of each page to indicate the question number. Unit test. The order of statement execution through method is linear, one statement after another. Step 2: Look at the topmost card in your hands. Fill in the blanks on the following for loop header so that the code prints the numbers: 2 4 6 8. Larger messages are divided into packets may arrive at the destination in order, out-of-order, or not at all. How to write a Java program b. int [] [] num = / missing code /; Which of the following initializer lists could 21 of 21. Actual parameter is the value that is sent in. Assignments grow in complexity as students explore programming concepts first through block-based, drag-and-drop coding in Scratch, followed by text-based coding in Python. Any combination of data types. Quicklinks Mar 16, 2023 · Computer Science. algorithms. Find other quizzes for and more on Quizizz for free! Mar 28, 2023 · 10. 4 Questions | 1 Hour 30 Minutes | 50% of Exam Score. Review the basic principles behind how computer programs are architected and Start studying AP Computer Science: Unit 2 Exam Study Guide. 57 single-select multiple-choice. collegeboard. a computational model in which operations are performed in order one at a time. Basic Strings c. This digital exam practiceis not a full-length exam, and it does not represent the completescope of content and skills thatstudentswi ll see on the actual AP exam. Copying the variable yields a second reference to the same array. Use the ___ method to copy the elements of an array. numbers use what to increase the "weight" of each digit? to convert from Base 10 to another base, use what? to get the remainder after integer division, use what? Study with Quizlet and memorize flashcards containing terms like powers of 2: 2¹, powers of 2: 2², powers of 2: 2³ and more. The method will result in an infinite loop for some arguments, but will return a number for all arguments which are sufficiently small. Click the card to flip 👆. Expression and Assignment The AP Computer Science A exam is three hours long and consists of two sections: a multiple-choice section and a free-response section. What is the best explanation for why digital data is represented in computers in binary? The binary number system is the only system flexible enough to allow for representing data other than numbers. This digital exam practiceincludes only content thatwould typically be taught in the first half of the school year, following the unit sequencein the AP Computer Science A Course and public class SimpleGreeting is a program statement and must end with a semicolon. -Every algorithm can be constructed using combinations of sequencing, selection, and iteration. Step 5: The last person standing is the tallest in the group. arraycopy. One copy exists for all instances of the class. psych 446 exam 2. AP CSA students generally demonstrated solid understanding of each unit; the only unit where many students struggled was Unit 10, Recursion. Binary sequences are how we sample these analog images, through patterns of 0s and 1s, and RGB pixels are what shows up on our screen when we sample our analog images. The values being sent in are called argument (Actual parameter). Writing significant amounts of code that can be replaced by a call to one of these methods may not receive full credit. length/2; k++) total = total + nums[k]; return total; } Assume that the array test has been declared and initialized as follows. Match the following terms with their definitions computing device-a machine that can run a program. A machine that has a specific purpose or function, capable of communicating with other devices. , A code block is indicted by the use of [ ]. Devices. Instructions Section I of this examination contains 40 multiple-choice questions. Learn AP Computer Science Principles using videos, articles, and AP-aligned multiple choice question practice. Sampling is a method of converting analog into a digital image. Sequential Computing. Study with Quizlet and memorize flashcards containing terms like Packets, What do packets AP Computer Science Principles Unit 1. Packet. Step 1: Everybody stands and lines up against the wall. Algorithm B. AP students can also access videos on their own for additional support. " Then, the study method was called on bob using dot notation. This two-chapter post-AP® CSA module offers high school students hands-on experience with professional software development tools, including GitHub and GitHub Copilot, and imparts them with the real-world skills to develop a computer vision program. 2. making multiple computers work to solve the same problem. Primitive Variables b. print (i + " "); A. g. int a = 2; int b = 6; int c = 3; Which of the following expressions evaluates to false ?, Consider the following code segment. 🏽 Ultimate Guide to the AP Computer Science A Exam: A point-by-point breakdown of the entire exam, including tips and practice prompts for the MCQ and FRQ. This course instructs students on core aspects of computer science. for (int i=9); int >=1;i--) {. Preview. Convert the binary (base-2) number 1001 to decimal (base-10) 9. (sometimes written bitrate) the number of bits that are conveyed or processed per unit of time. While Loops: repeat a task for an unknown number of times while a condition is TRUE, before each iteration, the condition is checked. 28 terms. In Unit 2, students jump into programming in Java by creating a program to identify an ideal area of land in Antarctica where it would be safe to build a new research station. boolean a = true; boolean b = false; System. AP Computer Science Principles - Unit 10 Test Review. size ()-1. This question involves the analysis of weather data. public static void stretch (Rectangle r) {. Bit-rate (bandwidth) is the time elapsed between the transmission and receipt of a piece of digital data. System. 2020 College Board. public class ArrayResizer { /** Returns true if and only if every value in row r of array2D is non-zero. Therefore this method is called, and "C" is printed. Study with Quizlet and memorize flashcards containing terms like What is a computing device?, What is a computing system?, what is a computing network and more. Modifier added to a method or variable. It's easier, cheaper, and more reliable to build machines and devices that only have to N-1. Introduction to OOP (CED Unit 1) a. Community questions. Updating code is easier if procedures (functions) are used for repeated parts of the program. Description. They work together because in order to display a color image, you must use binary sequences, combinations of 0s About this unit. An array variable stores ___. D. For example: if protocol A relies onprotocol B, it means that A is a higher level protocol than B, and thus protocol B must exist and work properly in order for protocol A to do its job. Learn vocabulary, terms, and more with flashcards, games, and other study tools. objects. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Study with Quizlet and memorize flashcards containing terms like Heuristic, Add The Same Number Of Bits To Each RGB Value, Bytes and more. (B) do the actual work. 21% of students couldn’t answer any questions about that unit correctly. The first two digits in the hexadecimal code correspond to the amount of Study with Quizlet and memorize flashcards containing terms like What is Moore's law, What does "Big data" Usually mean A. clone. AP Computer Science A - Unit 6 Review. I wanted to see if my code would work, so I wrote it. That a data set is larger than 5 TB which is the common "Big Data" threshold. Consider the following code segment, which is intended to create and initialize the two-dimensional (2D) integer array num so that columns with an even index will contain only even integers and columns with an odd index will contain only odd integers. A boolean variable called isHardcover to indicate whether or not the book is hardcover. Get ready to crush the AP Computer Science Principles exam! Syllabus Development Guide: AP Computer Science A. Expand All. You’ll learn how these components work together to connect people, and how initiatives are aiming to bridge the digital divide and get all of us online. 7 terms. 3; b = 4. , In Java, all program statements end with a semicolon. 22% of students earned perfect scores on this unit’s questions. Terms in this set (6) Study with Quizlet and memorize flashcards containing terms like A company is completing research and development for software which it is planning to produce in approximately 2 years time. Request free sample Kami Export - KHOA Nguyen - Activity Guide - Learning From Data - Unit 5 Lesson 1; AMC Tech News - amc tech news assignment. For example: =, ≠, >, <, ≥, and ≤. Use the tag feature to find questions that have been tagged with the correlating code. Question 2 continues on the next page. find current events; Apcompprofect; AP Computer Science Principles Big Idea #3 - Algorithms&Programmig-2; Apcsp-Exam Reference Sheeet - Algorithms&Programmig-2; Personal Project Reference Mar 28, 2023 · In this snippet, a new object of type Person was created, and the name parameter was passed in as "bob. When someone tries to get sensitive information from you by impersonating another person or company. 10 terms. c. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at ssd@info. a chunk of data sent over a network. This unit provides exam preparation resources, including an overview of the exam format, a guide to practicing for the exam, and a vocabulary review. 2 days ago · 2D Arrays: 2D arrays are data structures that store values in a grid-like format with rows and columns. Step 3: If the card's suit is a HEART or the card's value is a TEN, place all other cards in your hands on top of the pile to your right. sb gl cw wi jf vf az bk fv qm