QUESTION 1

1. A raw image file saves all of the sampled information.

   True

   False

1 points

QUESTION 2

1. An attempt to manipulate a turtle whose window has been closed raises an error.

   True

   False

1 points

QUESTION 3

1. Constructors are used to create new instances of a class.

   True

   False

1 points

QUESTION 4

1. Given a Turtle object of t, what method can you use to erase all of the turtle's drawings, without changing the state?

   	a.	t.scratch()
   	b.	t.clear()
   	c.	t.erase()
   	d.	t.delete()

1 points

QUESTION 5

1. How does digital information differ from analog information?

   	a.	Digital information can be represented as wave patterns, while analog information consists of bits.
   	b.	Digital information is commonly used in basic image and sound devices, such as recorded records, while analog is used for electronic media.
   	c.	Digital information consists of discrete values, while analog is a continuous range of values.
   	d.	Digital information consists of a continuous range of values, while analog is a set of discrete values.

1 points

QUESTION 6

1. Programming that relies on the use of objects and methods to control complexity and solve problems is known as what type of programming?

   	a.	access-based programming
   	b.	entry-based programming
   	c.	object-based programming
   	d.	serial-based programming

1 points

QUESTION 7

1. The size of a pixel is determined by the size and resolution of the display.

   True

   False

1 points

QUESTION 8

1. What Turtle method is used to move the Turtle object instance t to the center of the window, pointed east?

   	a.	t.home()
   	b.	t.start()
   	c.	t.restart()
   	d.	t.return()

1 points

QUESTION 9

1. What coordinate system is utilized for the Turtle graphics toolkit?

   	a.	square system
   	b.	polar system
   	c.	fractal system
   	d.	cartesian system

1 points

QUESTION 10

1. What is instantiation in Python?

   	a.	It is the process of calling a module mutator method.
   	b.	It is the process of calling a function that returns no object.
   	c.	It is the process of creating an IDLE session that utilizes a graphics window.
   	d.	It is the process of creating a class-based object.

1 points

QUESTION 11

1. When instantiating a class and assigning the resulting object to a variable, what is the right side of the assignment called?

   	a.	The instantiator statement.
   	b.	The creator statement.
   	c.	The constructor statement.
   	d.	The spawner statement.

1 points

QUESTION 12

1. Why is the conversion of an image to grayscale by simply computing the average of a pixel less than ideal?

   	a.	The conversion does not take luminance into account.
   	b.	The conversion will cause some areas of the image to be invisible
   	c.	The conversion will make details that are red or green in color hard to see.
   	d.	The conversion will still contain non-grayscale colors.

1 points

QUESTION 13

1. A black-and-white photograph contains more than just the black and white colors, but various shades of gray known by what term?

   	a.	graymap
   	b.	grayscale
   	c.	grayshade
   	d.	graycurve

1 points

QUESTION 14

1. Assuming you have an images module object named i, what method can you use to change the pixel at coordinate 238, 590 to red?

   	a.	i.Pixel(238, 590, (0, 0, 255))
   	b.	i.modPixel(238, 590, (255, 0, 0))
   	c.	i.chgPixel(590, 238, (0, 255, 0))
   	d.	i.setPixel(238, 590, (255, 0, 0))

1 points

QUESTION 15

1. Generally, an object's state is the set of values of its attributes at any given point in time.

   True

   False

1 points

QUESTION 16

1. In the RGB system, the value 255 represents the total absence of that component.

   True

   False

1 points

QUESTION 17

1. Many image-processing algorithms use a nested loop structure to traverse a two-dimensional grid of pixels.

   True

   False

1 points

QUESTION 18

1. What does the term "sampling" imply in relation to images?

   	a.	The conversion of digital into analog information for display on a screen.
   	b.	The process of creating analog information from digital information, for use in computer programs.
   	c.	The mapping of analog information in a visual format to discrete values.
   	d.	The utilization of a sample of data to represent a larger digital data set.

1 points

QUESTION 19

1. What is the term used to describe the processing of a multi-row, multi-column grid of information using a nested loop structure?

   	a.	row-column mapping
   	b.	grid-centric retrieval
   	c.	field circuit mapping
   	d.	row-major traversal

1 points

QUESTION 20

1. When discussing an image, what is an image's aspect ratio?

   	a.	The ratio of the image's bitrate to its size.
   	b.	The ratio of the image's width to its height.
   	c.	The ratio of the image's colors to their brightness.
   	d.	The ratio of the image's color gamut to its bitrate.