Midterm

Question 1

What does IDLE stand for?

Answer 1

Integrated Development Learning Environment

Question 2

What is used to write and save Python code?

Answer 2

Script window

Question 3

What does IDE consist of?

Answer 3

1. Source code editor
2. Build automation tools
3. Debugger

Question 4

What does a variable name contain?

Answer 4

Numbers, letters and underscores ONLY. (Can NOT start with a number)

Question 5

What are python keywords reserved for?

Answer 5

Internal use

Question 6

How are variables in Python typed?

Answer 6

Dynamically

Question 7

In mathematical operations, ______ matters.

Answer 7

Type

Question 8

Python is case sensitive, T or F?

Answer 8

True

Question 9

What kind of language is Python?

Answer 9

Interpreted

Question 10

Python scripts can be produced without an external development environment, T or F?

Answer 10

True

Question 11

What is ArcGIS Engine used for?

Answer 11

To deploy GIS data, maps, and geoprocessing scripts

Question 12

Common data types? (variable declaration)

Answer 12

int, float, string and bool

Question 13

How to concatenate two strings together?

Answer 13

With the + operator

Question 14

\ prints?

Answer 14

one backslash

Question 15

' prints?

Answer 15

A single quote

Question 16

" prints?

Answer 16

A double quote

Question 17

\n

Answer 17

new line

Question 18

string functions

Answer 18

upper()
lower()
len()
str()

Question 19

str()

Answer 19

Returns a string value of input

Question 20

len()

Answer 20

Returns the length of a string

Question 21

Every letter in a string has an index, starts from?

Answer 21

0 (left to right)

Question 22

Sequences fall into one of two categories:

Answer 22

Mutable or changeable

Immutable or unchangeable

Question 23

Strings are immutable, T or F?

Answer 23

True

Question 24

To print without a newline, add a _______ after the last object.

Answer 24

Comma

Question 25

The 'for' loop repeats tasks, but not based on a condition, instead, based on ________ (an ordered list of things)

Answer 25

Sequence

Question 26

You can use the _________ statement to cause early termination.

Answer 26

Break

Question 27

The break statement causes the execution to immediately exit the _____ block and continue with the next statement after the _____ block, if any.

Answer 27

While

Question 28

You can use the ______ statement to skip certain iteration.

Answer 28

Continue

Question 29

The ________ statement causes the exectuion to skip the rest of the statements within the while block for that iteration.

Answer 29

Continue

Question 30

The ________ module contains functions related to generating random number and producing random results.

Answer 30

random

Question 31

What function is used to produce a random integer?

Answer 31

randrang()

Question 32

What does range() function generate?

Answer 32

Lists containing arithmetic progressions. | range([start,] stop[, step) -> list of integers

Question 33

A special kind of variable used to store a series of elements that usually contain related information

Answer 33

List

Question 34

In a list, do all the elements to have the same data type?

Answer 34

No, they do not

Question 35

In a list, each of the elements is identified by its _______.

Answer 35

index

Question 36

List methods

Answer 36

``` append(value) sort() reverse() count(value) index(value) insert(i, value) remove(value) ```

Question 37

Tuple can be changed after creation, T or F?

Answer 37

False, Tuple can NOT be changed after creation

Question 38

A sequence of elements (any type)

Answer 38

Tuple

Question 39

In dictionary, data are enclosed within ________.

Answer 39

curly braces {}

Question 40

What is Dictionary?

Answer 40

Another Python container type for storing data in key/value pairs (no index, tracked by key)

Question 41

Another Python container type for storing data in _________ pairs.

Answer 41

key/value

Question 42

To create/track/modify item in dictionary, we need to use _________.

Answer 42

square brackets []

Question 43

What is a shared reference?

Answer 43

A variable refers to a value. It doesn't store a copy of a value, but refers to the place in the computer's memory where the value is stored.

Question 44

What is Function commonly used for?

Answer 44

To group a series of statements together to achieve a specific objective.

Question 45

How to define a function?

Answer 45

Use def, followed by function name, followed by a pair of parentheses, followed by a colon and then an indented block of statements

Question 46

What are optional parameters?

Answer 46

Parameters with default values

Question 47

Function parameters/arguements.

Answer 47

The data type of Input(s) should be same as the type of the parameter(s) the function defines

Question 48

By default, all functions return _________.

Answer 48

None

Question 49

Three types of errors?

Answer 49

1. Syntax error (easy) - code is wrong 2. Exception (hard) - during runt time, a statement is impossible to carry out 3. Logic (harder) - code doesn't produce the expected result

Question 50

Complete statements used to handle exceptions?

Answer 50

Try, except, else, finally

Question 51

Debug tool?

Answer 51

Go - run the code as the Debugger is not turned on Step - Run the code line by line Over - Debugger will not step into function it calls Out - jump out of the function it is in Quit - stop running the code

Question 52

Helps you to run the code at normal speed until it reaches a certain line?

Answer 52

Breakpoint

Question 53

A _________ is set on a line when you want the debugger to take control once execution reaches that line.

Answer 53

Breakpoint

Question 54

You can set breakpoints on as many lines as you want, T or F?

Answer 54

True

Question 55

Python code elements?

Answer 55

1. Statement (sentence) 2. Function (paragraph) 3. Module (chapter) 4. Project (book)

Question 56

Define variable scope.

Answer 56

The scope of a variable is the region of the program in which it is accessible.

Question 57

Variable scopes?

Answer 57

Global, Module, Function

Question 58

Pathnames defined as strings should use two backslash () a single ________.

Answer 58

Forward slash (/)

Question 59

Pathnames are always stored as ______ in Python.

Answer 59

Strings

Question 60

OOP

Answer 60

Object-Oriented Programming - a programming paradigm that uses "objects" to design applications and computer programs

Question 61

Established paradigms in OOP

Answer 61

1. Abstraction 2. Encapsulation 3. Inheritance 4. Polymorphism

Question 62

Anything that can be seen or touched. Objects have _________ and _________ (behaviors)

Answer 62

attributes, methods