CompSci 1033

What should you set the dpi for an image you wish to print?

300 dpi

If you have an image that is 400 pixels by 600 pixels and the dpi is 200, what size will it print at?

2 inches by 3 inches (400/200 and 600/200)

If you want to print an image at 5" by 7", what is the minimum size it must be in pixels for it not to look pixelated?

1500 pixels by 2100 pixels (5 x 300 by 7 x 300)

If you have an image that is 600 pixels by 900 pixels and I print it at a resolution of 150 dpi, how big will the image by?

4 inches by 6 inches (600/150 by 900/150)

Which of the following images will print the largest?

a) 300 pixels by 300 pixels at 100dpi

b)300 pixels by 300 pixels at 50 dpi

c) 300 pixels by 300 pixels at 10 dpi

c) 300 pixels by 300 pixels at 10dpi

Which of the following images will have the largest file size (in kilobytes)?

a. 300 pixels by 300 pixels at 100dpi b. 300 pixels by 300 pixels at 50dpi

c. 300 pixels by 300 pixels at 10dpi

d. They will all be the same size

d) they will all be the same size

How many Megapixels is an image that is 2000 pixels by 3000 pixels?

6,000,000 pixels or 6 megapixels

To calculate the number of bytes an uncompressed true colour image will be, you multiply the width pixels by the height pixels by 3 bytes (1 byte for the red= 28 bits, 1 byte for the green = 28 bits, 1 byte for the blue = 28 bits,). This is called a .raw file. Based on the above formula, how many bytes would an image in .raw format be if it was 200 pixels by 300 pixels?

200 x 300 x 3 = 180,000 bytes

How many kilobytes would the above image be (a kilobyte is 1024 bytes, but to make the calculation easier, assume a kilobyte is 1000 bytes)

180,000/1024 = 175 kilobytes

180,000/1000 = about 180 kilobytes

The vertical spacing between lines of text is called

Leading

What type of compression guarantees that none of the quality is lost

lossless compression

how many different combinations can be made from a sequence of 4 bits

16

Sampling and quantizing are used to digitize

images, audio and video frames

the first page of any website should be named

index.html

what colour is represented as #00FF00

Green

What colour is represented as <255, 0, 255>?

Purple

Which protocol breaks data into pieces, sends them to different computers until they reach their destination and them reassembles the pieces?

TCP/IP

How many bytes are used for "true colour"?

3

Cinemagraphs can be made by

combining a video with a still frame

How many subdomains are in the url: http://www.london.menu.restaurant.com

2

What is the TLD of the url http://www.london.menu.restaurant.com

com

Indicate which IP address is invalid:

a. 0.53.200.8

b. 112.14.92.133

c. 72.209.15.77

d. 29.285.40.119

d) 29.285.40.119

Which image format(s) support true colour?

JPG

In CS1033, we made layouts with

tables

convert binary number 1011 to decimal

11

For SEO, it is better to add "Merry Christmas" together rather than "Merry' in one place and "Christmas" in another place. This is known as

Keyword proximity

Video uses which colour model

YUV

What is the sample rate of a CD

44.1 Hz

Calculate the filesize of an uncompressed true colour image that is 1000px by 500px

1,500,000 bytes

What is the advantage of vector graphics

smaller filesize than raster graphics, resizing does not cause blurriness

How many bits would be required to represent 30 items in binary

5

the 'C' in CRAP stands for

Contrast

The advantage of downloading it that you can play it quicker than if your streamed it (true or false)

false

Onion skinning is when an animator draws over live action video to create a sketched copy of the video (true or false)

False

Rollover button effects can be made by adding JavaScript code into the HTML (true or false)

True

MP3 files can compress a song up to 1/20 of its original size (true or false)

false

#DDDDDD is darker than #777777 (true or false)

false

Newspapers are traditionally printed with the CMYK colour model (true or false)

true

Google will give higher search rankings to sites that do keyword stuffing (true or false)

false

Hexadecimal codes represent many more different colours than RGB codes (true or false)

false

All packets travel the same route in TCP/IP (true or false)

false

Domain names can include letters and numbers but not spaces (true or false)

true

Stereo audio is typically 4 times the filesize as that of mono of the same clip (true or false)

false

Google was developed by Tim Berners-Lee (true or false)

false

Affinity Photo has options to export as vector gprahics or as raster graphics (true or false)

true

Softsubs are subtitles embedded in an MP4 file (true or false)

false

One disadvantage of animated GIFs is that they cannot include audio (true or false)

true

Websites that contain a lot of of links to other sites will by ranked high in the search results (true or false)

false

PowerPoint allows you to animate text by individual words or letters (true or false)

true

Filesize is not affected by an images DPI (true or false)

true

Arial and Times new Roman are called websafe fonts becuase they work on all platforms (true or false)

true

The binary number 11 is equal to decimal number 2 (true or false)

false

Dithering is a feature of JPGs and GIFs (true or false)

false

4:2:2 means no compression was done to the video (true or false)

false

Which file format would work best for an image of clouds if you wanted to show you website background partially showing through the clouds?

PNG

What colors are the following: a) #FF0000 b) <255,0,255> c) <255,255,255> d) #020202 e) <271, 271, 271>

a. red b. purple c. white d. dark gray e. N/A (numbers can only go to 255)

what is dithering

Adding different colour pixels in a checkerboard pattern so they blend together to create the illusion of a new colour. An important feature in GIFs that only support 256 colours.

What format should a picture of a sunset be stored as

jpg

what format should a cartoon picture be stored as

gif

what does the term 1080p mean?

1080 horizontal lines, progressively displayed

gif allows for: a) 2 bit color b) 8 bit color c) 24 bit color d) all of the above e) a and b only

e) a and b only

jpg compressions realizes that the human eye is better at detecting: a) differences in color than differences in brightness b) differences in brightness than differences in color

b) differenes in brightness than differences in colour

If you have a gif image it is better not to keep saving it as a gif repeatedly as it will lose some of its original information and thus degrade in quality (true or false)

false

Any font can be displayed on a website, as long as the person building the site has the font installed. (true or false)

false

There is always a one to one mapping between an IP address (128.22.3.45) and a domain name (www.csd.uwo.ca) (true or false)

false

Which of the following is an invalid IP address a) 33.44.55.66 b) www.uwo.ca c) 280.89.300.20 d) a and b e) b and c

e) b and c

Which of the follow are valid Top Level Domain Names: a) www b) com c) edu d) uk e) ca

b) c) d) e) are all valid

Which of the following is an html tag? a) b) (b) c) b d) [b]

a)

Where is the

In the browser header bar and tab

If you were viewing a web page and then clicked View Source, you would see: a) text consisting of content and html tags b) the actual images, links and content c) links and the actual images only

a) text consisting of content and html tags

What are the four fundamentals discussed in class of any good design

CRAP (Contrast, Repetition, Alignment, and Proximity)

In an audio wave plot, the horizontal distance between waves indicates which characteristic of the sound? a) volume b) pitch c) track length d a) and b)

b) pitch

A tween is: a) The frame that contains the last movement in your animation b) The computer generated frames between two positions in an animation c) The location where the music goes in an animation

b) The computer generated frames between two positions in an animation

Kerning is: a) The space between two lines of text b) The space between two characters c) The spacing across an entire row of text

b) the space between two characters

The lowest resolution you should have when creating an image to be printed is: a) 72 ppi b) 96 ppi c) 200 ppi d) 300 ppi e) 1200 ppi

d) 300 dpi

Ray tracing is adding skin and feathers and scales to animations (True or False)

false

What occurs when you type in a search term on Google? a) A web crawler/spider crawls the Internet b) Google builds a database of websites pertaining to your search c) Google looks in their index for the search term and then their everchanging database to get URLs that contain the search term

. c) Google looks in their pre-existing database to find which websites are listed under your search terms in there

24. Tim Berners Lee was instrumental in creating the internet in 1969. a True b False

false

What is the key idea behind the Page Rank algorithm of Google?

Popularity is the most important

How many bits are required for storing 16 possible colours?

4 bits

JPG compression is called lossless because pixel colours are removed to reduce filesize. (true or false)

false

What is the name of the software that transfers files to a webserver

FTP (FileZilla, WinSCP, etc.)

What is the name of the web server at Western

panther.uwo.ca

Lossy Compression

A way of reducing filesize by discarding pixel colours and setting them to nearby similar colours

PNG

Web graphic file format that supports variable transparency

.jpg

web graphic file format that is best used for continuous tone images such as photographs

colour resolution

measures the number of bits of stored info per pixel (or how many different tones every pixel can have)

gif

web graphic file format that can display animation

image resolution

the amount of information stored for each image

Calculate the decimal number value of the binary number 1010:

10

composed of tiny dots, each corresponding to one pixel on the computer's display?

bit-mapped graphics

What are the characteristics that define a cel-based animation. Within a scene

Background changes from one scene to another, and object changes from one frame to another

When using a table in KompoZer, to adjust the spacing around each cell so that text does not touch the grid cells, one would assign a value to the "cell spacing" or "cell padding".

padding

.jpg

web graphic file format that is best used for continuous tone images such as photographs

colour resolution

measures the number of bits of stored info per pixel (or how many different tones every pixel can have)

gif

web graphic file format that can display animation

image resolution

the amount of information stored for each image

Calculate the decimal number value of the binary number 1010:

10

composed of tiny dots, each corresponding to one pixel on the computer's display?

bit-mapped graphics

.jpg

web graphic file format that is best used for continuous tone images such as photographs