101 AP computer Science REVIEWED EXAM WITH ANSWERS [100% PASS]

101 AP computer Science REVIEWED EXAM WITH ANSWERS [100% PASS] An algorithm has been developed to compute the sum of all the elements in a list of integers. Which of the following programming structures must be added to the existing algorithm so that the new algorithm computes the sum of only the even integers in the list? (2) (A) Iteration (B) Searching (C) Selection (D) Sequencing *Ans* C. Selection The code segment below uses the procedure IsFound (list, item), which returns true if item appears in list and returns false otherwise. The list resultList is initially empty. FOR EACH item IN inputList1 { IF (IsFound (inputList2, item) { APPEND (resultList, item) } } Which of the following best describes the contents of resultList after the code segment is executed? (2) (A) All elements in inputList1 followed by all elements in inputList2 (B) Only elements that appear in both inputList1 and inputList2 (C) Only elements that appear in either inputList1 or inputList2 but not in both lists (D) Only elements that appear in inputList1 but not in inputList2 *Ans* (B) Only elements that appear in both inputList1 and inputList2 A programmer is writing a program that is intended to be able to process large amounts of data. Which of the following considerations is LEAST likely to affect the ability of the program to process larger data sets? (2) (A) How long the program takes to run (B) How many programming statements the program contains (C) How much memory the program requires as it runs (D) How much storage space the program requires as it runs *Ans* (B) How many programming statements the program contains Which of the following statements are true about using a high-level programming language instead of a lower-level language? (2) Programs written in a high-level language are generally easier for people to read than programs written in a low-level language. A high-level language provides programmers with more abstractions than a low-level language. Programs written in a high-level language are generally easier to debug than programs written in a low-level language. (A) I only (B) I and III only (C) II and III only (D) I, II, and III *Ans* (D) I, II, and III A student is recording a song on her computer. When the recording is finished, she saves a copy on her computer. The student notices that the saved copy is of lower sound