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Quiz Corrections

CB Faculty Notes

Quiz Corrections2

Quiz Corrections3

Collegeboard Practice Quiz 5

Quiz 5

Question 2:

My Answer: D
Correct Answer: B
Explanation: I chose D as the answer because I thought that the y-value needs to be more than compared to the x-value. Though, now I know that the correct answer is B because by adding an “ELSE” statement, this would ensure that there are two random calls, where depending on the number if it is eqaul to 1 ot greater than 1.

Question 3:

My Answer: B and C
Correct Answer: B and D
Explanation: I thought that the answers are B and C bc/ when plugged in I was thinking about the count being greater than the x-value, instead of the y-value. Now I know that the correct answer is B and C bc/ how 1 is never less than -5.

Question 4:

My Answer: A and B
Correct Answer: B and C
Explanation: I chose A and B bc/ I thought that the minute hand would symbolize the smallest unit of bit. Reminder: Binary digits can only be represented as 0 or 1. Answer B is correct because the remainder comes in turn whether or not the remiander can be solved with the number bit, where 0 is for off and 1 is for on.

Question 7:

My Answer: A
Correct Answer: C
Explanation: I chose A bc/ I thought that the least number of bits would be required, where the number that is the least would work out eventually. Now I know that the correct answer is 7 bc/ 2^7= 128.

Question 9:

My Ans: A
Correct Ans: D
Explanation: I chose A bc/ I thought that the computer system would take more time to follow tasks, where the amoutn of time exponentially rise. However, the answers A and D both contain patterns of exponential growth, where the most time taken for the ocmputer to perform its task would be for sorting data.

Question 12:

My Ans: C
Correct Ans: B
Explanation: I chose C bc/ I thought that the robot would need to move 3 spaces forward first. However, I didn’t see that once the robot moves a certain times forward, it would need to rotate the number of times to the right, which I had miscalculated.

Question 15:

My Ans: B
Correct Ans: C
Explanation: I chose B bc/ I thought that the number of times of the results would be different order but have similiar values, from 0 to 10. However, now I know that the answer is C were the values are different however the amount of numbers are the same.

Question 16:

My Ans: C
Correct Ans: A
Explanation: I chose C bc/ I didn’t correctly evaluate Program B, where I didn’t know the difference between the values outputted when the i code segement is before the “DISPLAY i”.

Question 17:

My Ans: C
Correct Ans: D
Explanation: I chose C bc/ I thought that Version B would only take a minute longer to run bc/ of the seqeuntial format.

Question 18:

My Ans: C
Correct Ans: A
Explanation: I chose C bc/ I thought that Public key ecnryption would mean something that isn’t suppose to be private. However, now I know that the correct answer is A as any digital data can be encrypted by the public key encryption.

Question 21:

My Ans: A
Correct Ans: C
Explanation: I chose A bc/ I thought that bits only matter in terms of being 2 times of the number that is given. Since the 32-bit would mean 2^32 and 64-bit would mean 2^64.

Question 22:

My Ans: A
Correct Ans: B
Explanation: I chose A bc/ I thought that because the computer-controlled player is the cause of making the prgram to runner alot slower where I thought having two human players would be better. However, making approximate solutions would be good as there is a heuristic to solve this.

Question 25:

My Ans: B and C
Correct Ans: A and C
Explanation: I chose B and C bc/ I thought that the order would matter for whether or not the results would be valid based on the prgram code. Though, now I see how option A is one of the correct answers bc/ there are still duplicates left after the program runns.

Question 26:

My Ans: B
Correct Ans: A
Explanation: I chose B bc/ I thought that the aswer woudl return a 0 everytime. However, the correct answer is that the value would be displayed as valid with every possible number on the list.

Question 29:

My Ans: A
Correct Ans: C
Explanation: I chose A bc/ I had made a silly mistake in understanding of what the question was asking for and didn’t decide to look deeper at the question.

Question 30:

My Ans: C
Correct Ans: D
Explanation: I chose C bc/ I thought about the answer being that subtracting an index by one would the inner loop. However, now I know that the outside loop should have the index code as then the values would be in check.

Question 31:

My Ans: D
Correct Ans: C
Explanation: I chose D bc/ I thought about the number of times to count from the starting position, however I miscalculated and made sure that the count would be done after the first step.

Question 36:

My Ans: C
Correct Ans: A
Explanation: I chose C bc/ I thought that once the connection cannot be connected nothing can be successfully be send. Therefore, I had thought about the RPI from last trimester when I had done sent some link to the web broswer of the raspberry pi. Now I know that the file is sent in packages of transmission, where it takes the file to be sent in small packages and distributed.

Question 39:

My Ans: B
Correct Ans: D
Explanation: I chose B bc/ I got confused of the answer choices as I was running out of time and I should have read the question more carefully and managed my time with the other questions.

Question 40:

My Ans: C
Correct Ans: B
Explanation: I chose C bc/ I thought that there should be a set number that allows for the program to accept whole numbers. However, now I know that B is the correct answer because the score from B can change as it asks for the “current” score.

Question 43:

My Ans: B
Correct Ans: A
Explanation: I chose B bc/ I thought that the communication protcols would be realted to the TCP and IP. However, the internet allows for a greater networking.

Question 48:

My Ans: C
Correct Ans: D
Explanation: I chose C bc/ there would need to be a certificate authority needed for search database. However, now I know that the correct answer is D bc/ digital certificates lead the way to “the authenticity of encryption keys”.

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