Exam (elaborations)
AP Computer Science Principles Study Guide With Complete Solutions Latest Update
- Course
- APCSP
- Institution
- Stanford University
AP Computer Science Principles Study Guide With Complete Solutions Latest Update
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lOMoARcPSD|22014731AP Computer Science Principles Study Guide
In a binary system, what are the least amount of bits needed to represent 16
different options? - correct answers 4 bits
What is the binary for the decimal number 17? (Make sure you know how to do this without the Internet / etc.!) - correct answers 16 8 4 2 1
1 0 0 0 1
What is the decimal for the binary number 10101? (Make sure you know how to do this without the Internet / etc.!) - correct answers 16 8 4 2 1
1 0 1 0 1 = 21
When information is transmitted across the Internet, how and why is it broken up? - correct answers It is broken up into smaller packets to more easily transmit them.
Why is HTTP considered to be a high-level protocol? - correct answers It makes use of abstractions that come from lower-level protocols.
When you make a request to view a page on the Internet (ex. Microsoft.Com home
page) when is the path from your machine to the server set up? - correct answers It never specifically sets up a route. Each
router changes where it is going and pushes it forward.
How many MB are in 1 GB? - correct answers 1000 MB
What is lossy compression? - correct answers It is compression that causes a loss of data.
Imagine that you have 4 bits to store the width and 4 bits to store the height of
an image. What is the maximum size image that you could make? - correct answers A 15 x 15 size image
Which 16 characters does a hexidecimal system use when each value can be represented with a single character? - correct answers 0-9 and A-F
What is a heuristic solution to a problem? - correct answers A heuristic is a technique designed for solving a problem more quickly or efficiently.
What is an abstraction? - correct answers A function that can be taken out of code and used by others.
What is the digital divide and how can it affect research? - correct answers The digital divide is that only young middle and upper class people really use technology so data from older and poorer people is inaccessible swaying data.
What does iterative design in programming mean? - correct answers You make a change see how it works then go back and tweak it continuously.
What are some benefits of using functions? - correct answers If it can reduce the complexity of the program
Makes it more readable
If is can be used multiple times
Reduces size
What are some benefits of adding parameters to a function? - correct answers To reduce the amount of code
To make it more dynamic - changeable
A "for loop" is a specific type of loop that does what? - correct answers Repeats a function as many times as it is set to.
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