File Types Quiz

Question 1

raster vs. vector

Answer 1

pixels vs. lines

Question 2

raster

Answer 2

made up of a grid of dots aka pixels, each assigned a different color value. this limitation allows us to capture images 1 to 1.

Question 3

most images are

Answer 3

raster-based

Question 4

with raster-based images, there are a

Answer 4

limited number of pixels

Question 5

photoshop is ___-based while adobe illustrator is ___-based.

Answer 5

raster

vector

Question 6

with raster-based images, we can ___ but not ___ pixels

Answer 6

remove

add

Question 7

vector

Answer 7

made up of basic geometric shapes, such as lines and curves; continuous lines and anchor points. limited to the images you can create.

Question 8

compare vector size to raster size.

Answer 8

for raster-based images, we want to have the most pixels as possible to begin with. file types in vector are much smaller.

Question 9

the file type size of vector-based images make them great for

Answer 9

logo creation and motion graphics

Question 10

the 5 file types

Answer 10

1. JPEG
2. PNG
3. GIF
4. TIFF
5. BMP

Question 11

JPEG (joint photographic experts group)

Answer 11

common file format for digital photos and other digital graphics. when JPG files are saved, they use “lossy” compression

Question 12

lossy compression

Answer 12

image quality is lost as file size decreases

Question 13

JPEG files are a great option for

Answer 13

1. making smaller file sizes
2. images with more than 256 colors
3. acting as a catch-all

Question 14

JPEG offers __bit color with up to __million colors

Answer 14

24, 16

24 bit = 2^24

Question 15

JPEG file best uses

Answer 15

1. b&w images
2. images with complex coloring
3. still life imagery
4. real life photographs

Question 16

PNG (portable network graphics)

Answer 16

a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for GIF, and is the most used lossless image compression format on the Internet.

Question 17

lossless compression

Answer 17

no data lost

Question 18

with PNG, you can save

Answer 18

a transparent or opaque background

Question 19

alpha channels

Answer 19

where info is held about transparency. ex- in Photoshop, there are 3 files (R, B, G) and when transparent, an alpha channel will appear, too

Question 20

2 types of PNG image format

Answer 20

PNG-8 and PNG-24

Question 21

3 characteristics of alpha channels

Answer 21

1. transparency can be set between opaque and completely transparent, allowing for a faded look
2. PNG formats can go on any background and still maintain appearance
3. older browsers can have trouble with PNGs because they can’t handle alpha channels

Question 22

PNG file best uses

Answer 22

1. web images, flat areas of color, logos, transparent or semitransparent images
2. great for text images
3. images in the middle of the editing process
4. complex images like real-life photographs if file size is not an issue

Question 23

GIF (graphics interchange format)

Answer 23

image file format commonly used for images on the web and sprites in software programs. unlike the JPEG image format GIFs uses lossless compression that does not degrade the quality of the image.

Question 24

GIFs store image data using indexed color, meaning

Answer 24

each image can include a max of 256 colors

Question 25

GIFs have fewer colors so

Answer 25

files start even smaller than JPEGs

Question 26

GIFs come alive with

Answer 26

animation (it’s an animated file type)

Question 27

dithering

Answer 27

a process for GIFs to make the file even smaller by combining two pixel colors to make one

Question 28

GIFs technically could be transparent but

Answer 28

it’s just clunky

Question 29

GIF file best uses

Answer 29

1. simple images like line drawings, color borders, and simple illustrations
2. animations
3. web graphics with not many colors
4. very small icons

Question 30

TIF or TIFF (tagged image format file)

Answer 30

an image format file for high-quality graphics. they were created in 1986 as a file format for scanned images in an attempt to get all companies to use one standard file format instead of multiple.

Question 31

whether compressed or not, TIFFs

Answer 31

do not lose any image data

Question 32

TIFF compression types

Answer 32

LZW, ZIP, JPEG

Question 33

ZIP compression

Answer 33

lossless

Question 34

JPEG compression

Answer 34

lossy

Question 35

TIFFs are huge files so

Answer 35

you shouldn’t see them on the Web

Question 36

TIFF file best uses

Answer 36

1. images that will be sent to print
2. if images are being edited and layers are needed
3. high quality digital photography
4. big files to create with

Question 37

BMP (bitmap image file)

Answer 37

raster graphics image file format used to store bitmap digital images, independently of the display device (such as graphics adapter). used in way old stuff.

Question 38

technically some BMPs

Answer 38

have alpha channel

Question 39

___ is the go-to for final transparency delivery

Answer 39

PNG

Question 40

get BIG files to start with, such as

Answer 40

TIFF or JPEG > 10 MB

Question 41

BMP file best uses

Answer 41

1. images that will be sent to print
2. if images are being edited and layers are needed
3. if you need to preserve layers, and alpha transparency
4. good for any type of bitmap (pixel-based) images

Question 42

use JPEG for

Answer 42

web graphics

Question 43

use PNG for

Answer 43

web graphics
logos
line art

Question 44

use GIF for

Answer 44

web graphics
animation
clip art

Question 45

use TIFF for

Answer 45

print graphics

Question 46

use BMP for

Answer 46

print graphics