AP principles review

Question 1

Which of the following best demonstrates the use of crowdsourcing?

Accepted Answer

A website invites users to contribute reviews of restaurants

Question 2

In which of the following situations would it be most appropriate to choose lossy compression over lossless compression?

Accepted Answer

Storing music on a phone in order to max the # of songs that can be stored

Question 3

Which of the following best explains a heuristic approach in computing?

Accepted Answer

It finds an approximate solution when a perfect 1 is too costly to compute

Question 4

What is personally identifiable information (PII)?

Accepted Answer

Info that identifies an individual

Question 5

What is a potential negative effect of widespread automation in industry?

Accepted Answer

C. Reduced employment in some sectors

Question 6

What is the role of an IP address?

Accepted Answer

B. Identify devices on the network

Question 7

Which of these is NOT an example of data abstraction?

Accepted Answer

Raw binary data

Question 8

What is the smallest unit of data?

Accepted Answer

bit

Question 9

What is data mining?

Accepted Answer

Analyzing large sets to find patterns

Question 10

Which is a high-level programming language?

Accepted Answer

python

Question 11

What is an algorithm?

Accepted Answer

A set of instructions to solve a problem

Question 12

What is a digital footprint? Select the best answer

Accepted Answer

All data you leave online

Question 13

What type of error causes a program to crash?

Accepted Answer

Runtime error

Question 14

for which of the problems below would a sequential search algorithm be best?

Accepted Answer

looking up a phone number in a phonebook by phone number

Question 15

How can you protect your data online?

Accepted Answer

Use strong, unique passwords

Question 16

What does DNS stand for?

Accepted Answer

B. Domain Name System

Question 17

program input can be in the form of __________

Accepted Answer

all of the above

Question 18

the binary sequence, 1001 1010 1100 1111, contains how many bits or bytes?

Accepted Answer

16 bits (2 bytes)

Question 19

Which of the following best explains how data is transmitted on the Internet?

Accepted Answer

Data is broken into packets, which can be sent along different paths.

Question 20

Which of the following statements about the Internet is true?

Accepted Answer

Internet is designed to scale to support an increasing number of users.

Question 21

What is big data? select the best answer

Accepted Answer

Large and complex data sets

Question 22

What is the benefit of using procedural abstraction in a large program?

Accepted Answer

C. It improves readability and reusability of code

Question 23

What does debugging mean?

Accepted Answer

Fixing errors in code

Question 24

What is a privacy concern with big data?

Accepted Answer

Personal information may be exposed

Question 25

Which protocol ensures reliable transmission of data?

Accepted Answer

C. TCP

Question 26

What is a cookie in web browsing?

Accepted Answer

A small file that stores user data

Question 27

Which of the following most accurately describes a computing innovation's social impact?

Accepted Answer

An app that helps users reduce energy usage in their homes

Question 28

A student uses a school laptop on an unsecured public network. What is the most appropriate step to secure their data?

Accepted Answer

Use a Virtual Private Network (VPN).

Question 29

A photo, with the filename "Holiday," was taken at Central Park on 9/30/24. These are all examples of the photo's _____.

Accepted Answer

metadata

Question 30

What is a packet?

Accepted Answer

C. A small chunk of data

Question 31

What is the most significant benefit of using a binary search instead of a linear search on a large, sorted list?

Accepted Answer

It reduces the number of comparisons needed.

Question 32

What is the primary purpose of the Internet?

Accepted Answer

C. To share information globally

Question 33

What’s an example of metadata in a photo?

Accepted Answer

File size or location

Question 34

What number is 11011

Accepted Answer

27

Question 35

What is abstraction in programming?

Accepted Answer

Hiding details to focus on main idea

Question 36

negate the following expression assume A is True and B is False !A || B

Accepted Answer

False

Question 37

Which scenario best illustrates computing innovations leading to the digital divide?

Accepted Answer

B. A rural area has limited access to broadband

Question 38

How many bits are in a byte?

Accepted Answer

8

Question 39

What does iteration mean?

Accepted Answer

Repeating a set of instructions

Question 40

What is a possible negative impact of location-tracking technology in mobile apps?

Accepted Answer

Personal movement patterns may be exposed.

Question 41

What is sequencing in programming?

Accepted Answer

Executing steps in order

Question 42

Which of the following best describes a direct benefit in using redundant routing on the Internet?

Accepted Answer

allows messages to be sent on the network even if some connections failed

Question 43

What is ASCII used for?

Accepted Answer

C. Representing text

Question 44

What is encryption?

Accepted Answer

Scrambling data for security

Question 45

Which of the following best exemplifies the use of multifactor authentication to protect an online banking system?

Accepted Answer

After entering a password, a user must also enter a code from a text

Question 46

Which of these is the best analogy for how packets travel?

Accepted Answer

Like letters in the mail

Question 47

A facial recognition algorithm consistently misidentifies individuals w/ darker skin tones. What may be the cause?

Accepted Answer

The dataset used to train the algorithm was not diverse

Question 48

negate the following expression assume A is True and B is False A && (A && B)

Accepted Answer

False

Question 49

All of the following are true of lossy data compression EXCEPT

Accepted Answer

no data will be lost.

Question 50

A message is broken into packets for transmission over the Internet. What may occur if 1 packet is lost in transmission?

Accepted Answer

C. The TCP protocol will request retransmission of the lost packet.

Question 51

What does lossy compression do?

Accepted Answer

B. Removes data permanently

Question 52

Which is an example of analog data?

Accepted Answer

C. Vinyl record

Question 53

A sorted list of numbers contains 128 elements. How many Maximum gueses will it take to find a number using binary sort?

Accepted Answer

8

Question 54

What is an examples DDoS attack?

Accepted Answer

overwhelming a website until it crashes

Question 55

negate the following expression assume A is True and B is False !A || (A&&B)

Accepted Answer

False

Question 56

All of the following are examples of computing input devices EXCEPT

Accepted Answer

speakers

Question 57

Which is an example of redundancy in Internet routing?

Accepted Answer

Data taking multiple paths

Question 58

Which binary number is equivalent to decimal 6?

Accepted Answer

110

Question 59

What is a variable?

Accepted Answer

A named value that can change

Question 60

What does a function do?

Accepted Answer

Groups code into reusable blocks

Question 61

An AND gate takes two inputs, A and B, such that

Accepted Answer

The gate will be ON when both A and B are true

Question 62

What does a router do?

Accepted Answer

Directs data on the Internet

Question 63

What does multifactor authentication do?

Accepted Answer

Adds more security layers

AP principles review

Questions 63

AP principles review

Questions 63