python exam 2

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which statement definition results in an error? 'It is 10am' "It's 10am" 'It's 10am' "It is 10am"

'It's 10am'

which expression evaluates to 20?

(2 + 3) * 4

if you were writing your source code in the JavaScript programming language, what file extension would you use to save your file?

.js

What is the standard extension to use for a python code file?

.py

in the python terminal, what is printed when running the following line? 5 * 2 + 1

11

what does this expression evaluate to? 3 + 2 * 5

13

which expression evaluates to 2? 5 // 3 5 % 3 2 / 4

5 % 3

which language does not use a hybrid compiler/interpreter approach?

C++

When working with the Terminal inside of VS Code, how can you expand the pane?

Click the up arrow

python treats all numbers the same, regardless of numerical value.

FALSE

source code is written in rich text

FALSE

which language is considered an interpreted language?

JavaScript

In programming, a crash is when your program stops early or freezes because something unexpected happened.

TRUE

if you were developing an application for an iPhone, which IDE would you use?

XCode

which statement is true regarding python on a mac?

a mac comes with a version of python already installed

which tool is used to write source code?

a text editor

programming can be defined as: converting ideas into ________ that a computer can understand.

instructions

How would you write the "Hello, world!" program in python?

print("Hello, world!")

You have python 3 installed. How will you run the python code in the file "process.py" on the command-line prompt?

python3 process.py

Typing "What is 2 plus 2?" into the python prompt causes a

syntax error

Why are there so many programming languages?

to address many different computing needs

Which statement is true regarding python support in VS Code?

you need to install a VS Code extension to support python.

Which IDE feature allows you to get code suggestions while you are typing?

IntelliSense

to get python code suggestions, you need to tell VS Code which python interpreter to use.

TRUE

which mac application allows you to run commands and execute scripts in a command-line interface?

Terminal

why doesn't a python file execute when you double-click it?

double-clicking does not run the python interpreter on the source code

which command exits from the python command-line prompt?

exit( )

which of these is NOT a reason why we chose python as the language for the course? highly performant beginner-friendly relevant popular

highly performant

Which of the following will not output: I'm learning a lot!

message = "I'm learning a lot!" print(message)

which is an example of a runtime error?

name = "It's me!" print("Hello.",Name)

which concern could be considered a disadvantage of python under certain circumstances?

python is a general-purpose language.

Which command will start the python prompt on your computer?

python3

The code below, which is supposed to print the value of the variable x, is not working. Which category does the error fall under? x = 5 print("x")

semantic

why do computer instructions need to be sequential?

the order in which these instructions are executed is important

Why does VS Code need a python interpreter to be specified?

to provide code suggestions

if you execute the following expression, what is the output? <<< 3 + 5 * 2

13

what does this expression evaluate to? 2 * 3 + 2 * 5

16

which is an example of a syntax error? 2 (4*2) 2 + (4/0) 2 + (4*2)

2 (4*2)


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