CS50 (CS50)
Harvard University
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CS50 EXAM QUESTIONS CORRECTLY ANSWERED.
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CS50 EXAM QUESTIONS CORRECTLY ANSWERED. 
 
 
Define "Function." - CORRECT ANSWER o Functions are action verbs that tell you to do some sort of action (ex. pick up, call, open to, etc) 
 
Define "conditionals." - CORRECT ANSWER o Conditionals are like a crossroad where we use "if" and "then" statements/concepts 
 
What are Boolean expressions? - CORRECT ANSWER o Boolean expressions are "yes"/"no" questions 
 
What can help us write, run, and translate our code? - CORRECT ANSWER Tools ...
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Harvard CS50 - C Medium Pre-Test Exam Questions.
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Harvard CS50 - C Medium Pre-Test Exam Questions. 
 
 
// - CORRECT ANSWER comment 
 
if (x < y) - CORRECT ANSWER true is x is less than y 
 
else if (x > y) - CORRECT ANSWER nested if x is greater than y
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CS50 FINAL EXAM PREDICTION QUESTIONS.
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CS50 FINAL EXAM PREDICTION QUESTIONS. 
 
 
how does computer differentiate between letters and numbers? - CORRECT ANSWER file types: txt, doc, excl blah 
 
 - CORRECT ANSWER
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1.3 Written Exam Q & A.
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1.3 Written Exam Q & A. 
 
 
Operating system 
A set of programs that acts as an interface between the applications that are running on a computer and the computer's hardware. 
Multiprocessing 
The ability to use multiple processing devices. 
Previous 
Play 
Next 
Rewind 10 seconds 
Move forward 10 seconds 
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0:06 
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Brainpower 
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Multitasking 
The ability to run multiple applications simultaneously. 
Multithreading 
Allows different parts of a single program ...
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Python: Data Types Study Guide Test.
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Python: Data Types Study Guide Test. 
 
 
True - CORRECT ANSWER A constant representing the true value of the boolean type. 
 
False - CORRECT ANSWER A constant representing the false value of the boolean type. 
 
None - CORRECT ANSWER A constant frequently used to represent the absence of a value, as when default arguments are not passed to a function. 
 
strings - CORRECT ANSWER A string literal, or string, holds any combination of letters and numbers you would like it to hold. Any number it h...
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Harvard CS50 Week 1: Data Types & Variables Questions And Answers.
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Harvard CS50 Week 1: Data Types & Variables Questions And Answers. 
 
 
What is an "int?" - CORRECT ANSWER -The int data type is used for variables that will store integers 
- Integers always take up 4 bytes of memory(32 bits). Range of information that can be stored is limited to 32 bits 
 
What is an "unsigned int?" - CORRECT ANSWER - qualifier that effectively doubles the range of positive variables of that type at the expense of negative values 
 
What is a "char?" - CORRECT ANSWER - u...
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CS50 Python Practice Exam Test.
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CS50 Python Practice Exam Test. 
 
 
Which increment operator does not exist in python 
-++ or -- 
-Must use += or -= 
How to code for loop in python 
for i in range(#): 
Data types in python 
-Bool 
-Float 
-Int 
-Str 
-range'-tuple 
-dict 
-set 
What is a tuple? 
-a fixed-length, immutable sequence of Python objects 
What is a dictionary python 
-The built-in datatypes in Python is called dictionary. It defines one-to-one relationship between keys and values. Dictionaries contain pair of keys...
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CS50 Review Practice Test.
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CS50 Review Practice Test. 
 
 
Boolean 
A single value of either TRUE or FALSE 
Function 
A amount of code to do one specific task 
Variable 
Its storage a value like a bucket 
Conditionals - IF ....THEN ....ELSE 
Statements that only run under certain conditions: if then, else... 
Input 
Data that is entered into the computer system or instructions 
Algorithm 
a step-by-step procedure for solving a problem 
Output 
Data that has been processed by the alghoritm into a useful format. 
Loop 
a pr...
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Code C Study Guide Test.
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Code C Study Guide Test. 
 
 
#include <cs50.h> 
#include <stdio.h> - CORRECT ANSWER in all c50 code 
 
[data type] [variable] = get_[variable type]("[display]") - CORRECT ANSWER input syntax 
 
[data type] [variable] = [variable] - CORRECT ANSWER assigning variable syntax 
 
in all statements - CORRECT ANSWER ; 
 
printf("%[data type letter]", [variable]) - CORRECT ANSWER display variable 
 
int main(void){[all code]} - CORRECT ANSWER in all c programs 
 
if ([boolean statement]...
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Understanding Technology – Multimedia Questions And Answers.
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Understanding Technology – Multimedia Questions And Answers. 
 
 
file formats for recorded music - CORRECT ANSWER aac, midi, mp3, wav 
 
midi - CORRECT ANSWER way of storing musical notes for certain songs 
 
file formats - CORRECT ANSWER a way of storing 0s and 1s on disk so that a certain software knows how to interpret it 
 
sampling frequency - CORRECT ANSWER number of times per seconds we take a digital snapshot of what a person would hear 
 
bit depth - CORRECT ANSWER Number of bits use...
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