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Questions Wrong w/ Corrections

Question 4 = topic 1.D

corrections: Overflow errors occur when an arithmetic operation results in a value outside the range of numbers that can be represented by a fixed number of bits.

Question 15 = topic 1.D

corrections: Program A initializes i to 1. Inside the loop, it prints i and then increments i. The loop terminates when i is greater than 10, which occurs after 10 is printed. Program A prints 1 2 3 4 5 6 7 8 9 10. Program B initializes i to 0. Inside the loop, it increments i and then prints i. The loop terminates when i equals 10, which occurs after 10 is printed. Program B prints 1 2 3 4 5 6 7 8 9 10.

Question 16 = topic 4.C

corrections: The program traverses wordList starting at the end of the list and moving to the start of the list, removing any elements that are equal to ”the” or ”a” along the way. Inserting this statement between lines 7 and 8 decrements index after checking each list element, ensuring that all elements are checked.

Question 19 = topic 5.B

corrections: From years 1 to 5, the number of registered users roughly doubled each year. From years 5 to 8, the number of registered users increased by about 100 million each year.

Question 20 = topic 5.B

corrections: The two line graphs are roughly the same shape. Each value on the right line graph is about 10 times the corresponding value on the left line graph. Therefore, the average amount of data stored per user is about 10 GB.

Question 22 = topic 2.B

corrections: Re-read the diagram and match the steps.

Question 23 = topic 1.D

corrections: The flowchart sets available to true whenever weekday is true and miles is less than 20, and sets available to false otherwise. This code statement provides the same functionality.

Question 45 = topic 2.B

corrections: In this code segment, three coin flips are simulated, where one result is represented by 1 and the other result is represented by 0. The player wins when the sum of these is 0 or 3, indicating all heads or all tails.

Question 46 = topic 5.A

corrections: Every device connected to the Internet is assigned an IP address, which is used to enable communication using the Internet protocol.

Question 49 = topic 2.B

corrections: Using 7 bits will allow for up to 128 employees.

Question 59 = topic 5.E

corrections: Open-source software has source code that is released under a license that allows users the rights to use and distribute it. However, there is no guarantee that the original developer of open-source software will provide support for its users.

Question 62 = topic 2.B

corrections: Accdientally submited 3 answers instead of 2.

Question 67 = topic 4.C

corrections: For this code segment, count is increased to 1 the first time ”birch” is encountered in the list. However, count is reset to 0 when the code segment moves to the next list element. The last time ”birch” i

Topics ranked How I can improve
2.B Watch big idea 2 videos; khan academy, review whole unit, specifically review 2.B
1.D Review Big idea 1 and specifically 1.D
5.B, 5.A, 5.E Review Big idea 5 videos on college board and khan academy, blogs posted by Mr. Mortensen
4.C review 4.C videos on college board and take notes

For all of these make sure to watch college board videos and take notes