AP Computer Science Principles Exam Questions with Correct Answers

AP Computer Science Principles Exam Questions with Correct Answers Consider the following code segment, which uses the variables r, s, and t. r <-- 1 s <-- 2 t <-- 3 r <-- s s <-- t DISPLAY (r) DISPLAY (s) What is displayed as a result of running the code segment? (A) 1 1 (B) 1 2 ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/15 (C) 2 3 (D) 3 2 - ANSWER-(C) Which of the following is a true statement about product documentation? (A) Program documentation should not be changed after it is first written. (B) Program documentation is only needed for programs in development; it is not needed after a program is completed. (C) Program documentation is useful when programmers collaborate but not when a programmer works individually on a project. (D) Program documentation is useful during initial program development and also when modifications are made to existing programs. - ANSWER-(D) Which of the following best explains what happens when a new device is connected to the Internet? (A) A device driver is assigned to the device. (B) An Internet Protocol (IP) address is assigned to the device. (C) A packet number is assigned to the device. (D) A Web site is assigned to the device. - ANSWER-(B) ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/15 Consider the following code segment. j <-- 1 REPEAT UNTIL (<MISSING CONDITION>) (j <-- j + 2) Which of the following replacements for <MISSING CONDITION> will result in an infinite loop? (A) j = 6 (B) j ≥ 6 (C) j = 7 (D) j > 7 - ANSWER-(A) The algorithm below is used to simulate the results of flipping a coin 4 times. Consider the goal of determining whether the simulation resulted in an equal number of heads and tails. Step 1: Initialize the variables heads_counter and flip_counter to 0.