Unit 7: Graphics and Multimedia - Practice Quiz

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1 Which of the following is a common file extension for a bitmap image?

Understanding graphics File Formats Easy
A. .mp3
B. .exe
C. .txt
D. .bmp

2 The JPEG file format is best known for using which kind of compression?

Understanding graphics File Formats Easy
A. Lossy compression
B. Text compression
C. Audio compression
D. No compression

3 Which graphics format supports transparency and lossless compression?

Understanding graphics File Formats Easy
A. PNG
B. BMP
C. TXT
D. JPEG

4 Which of the following is an animated image format commonly used on the web?

Understanding graphics File Formats Easy
A. PDF
B. BMP
C. TIFF
D. GIF

5 Images made up of pixels are called what type of graphics?

Understanding graphics File Formats Easy
A. Vector graphics
B. Text graphics
C. Raster graphics
D. Sound graphics

6 Vector graphics are made up of which of the following?

Understanding graphics File Formats Easy
A. Sound waves
B. Individual pixels
C. Text characters
D. Mathematical paths and shapes

7 What does the abbreviation GIF stand for?

Understanding graphics File Formats Easy
A. General Image File
B. Global Image Frame
C. Graphic Internet Format
D. Graphics Interchange Format

8 Which device is most commonly used to convert a printed photo into a digital image?

Getting Images into your Computer Easy
A. Speaker
B. Keyboard
C. Scanner
D. Printer

9 Which device captures images directly in digital form without needing film?

Getting Images into your Computer Easy
A. Digital camera
B. Plotter
C. Monitor
D. Microphone

10 The resolution of a scanned image is usually measured in which unit?

Getting Images into your Computer Easy
A. KB (kilobytes)
B. DPI (dots per inch)
C. RPM (rotations per minute)
D. MHz (megahertz)

11 Which of the following can be used to capture a still image from a video signal?

Getting Images into your Computer Easy
A. Sound card
B. Barcode reader
C. Trackball
D. Frame grabber

12 Downloading pictures from the internet is one way to do what?

Getting Images into your Computer Easy
A. Compress audio
B. Print images
C. Delete images
D. Get images into your computer

13 Which software is primarily used for editing raster (bitmap) images?

Graphics Software Easy
A. Microsoft Excel
B. Adobe Photoshop
C. Notepad
D. VLC Media Player

14 Which type of software is best suited for creating scalable logos and illustrations?

Graphics Software Easy
A. Antivirus software
B. Vector graphics software
C. Database software
D. Word processing software

15 Which of the following is a simple graphics program included with Microsoft Windows?

Graphics Software Easy
A. Paint
B. Calculator
C. Task Manager
D. WordPad

16 In graphics software, what does the term "layer" refer to?

Graphics Software Easy
A. A separate level that can be edited independently
B. A type of image file
C. A printing setting
D. A sound effect

17 Which of the following best describes multimedia?

Multimedia Basics Easy
A. Only printed text
B. Only still photographs
C. A combination of text, audio, images, animation, and video
D. Only sound files

18 Which of the following is an example of a multimedia element?

Multimedia Basics Easy
A. Audio
B. Voltage
C. Latency
D. Bandwidth

19 Which hardware component is required to hear the audio part of a multimedia presentation?

Multimedia Basics Easy
A. Scanner
B. Modem
C. Speakers
D. Mouse

20 The ability of the user to control and interact with multimedia content is called what?

Multimedia Basics Easy
A. Resolution
B. Encryption
C. Compression
D. Interactivity

21 A designer needs to place a company logo on a website with a transparent background so it blends over any colored section. The logo uses only 12 flat colors. Which format is the most efficient choice?

Understanding graphics File Formats Medium
A. GIF or PNG-8
B. TIFF
C. JPEG
D. BMP

22 A photographer saves the same photo repeatedly as JPEG after each small edit. Over several rounds the image quality visibly degrades. What is the main cause?

Understanding graphics File Formats Medium
A. JPEG uses lossy compression that discards data on each save
B. JPEG converts the image to grayscale automatically
C. JPEG removes the color profile after the first save
D. JPEG reduces the resolution by half each time

23 You need to scale a company icon from pixels up to a billboard graphic without any blurring or jagged edges. Which format type should the source file be?

Understanding graphics File Formats Medium
A. Raster GIF
B. Vector (e.g., SVG)
C. Raster JPEG
D. Raster PNG

24 A short looping animation of a spinning icon with only a few colors needs to be embedded in an old email newsletter that supports limited formats. Which format is most appropriate?

Understanding graphics File Formats Medium
A. JPEG
B. SVG
C. GIF
D. BMP

25 An uncompressed 24-bit RGB bitmap image is pixels. Approximately how large is the raw pixel data?

Understanding graphics File Formats Medium
A. About MB
B. About KB
C. About KB
D. About MB

26 A team debates between PNG and JPEG for storing a detailed photograph that will be shared online where small file size matters more than perfect fidelity. Which is the better fit and why?

Understanding graphics File Formats Medium
A. PNG, because it always makes photos smaller
B. JPEG, because lossy compression greatly reduces size on photos
C. JPEG, because it supports transparency for photos
D. PNG, because it uses lossy compression for photos

27 Which statement correctly distinguishes lossless from lossy compression?

Understanding graphics File Formats Medium
A. Lossy preserves all data; lossless removes redundant data permanently
B. Lossless always produces smaller files than lossy
C. Lossless preserves all original data; lossy discards some data permanently
D. Both discard data but lossless can rebuild it exactly

28 A student wants to digitize a printed photograph and old paper documents at high detail. Which input device is most suitable?

Getting Images into your Computer Medium
A. Webcam
B. Graphics tablet
C. Digital camera held by hand
D. Flatbed scanner

29 When scanning an image, a user increases the DPI (dots per inch) setting significantly. What is the most direct effect?

Getting Images into your Computer Medium
A. Less detail is captured and the file size decreases
B. The image is automatically compressed to JPEG
C. Detail stays the same but colors improve
D. More detail is captured and the file size increases

30 A user wants to convert a page of printed text into editable, searchable text after scanning it. Which technology is required?

Getting Images into your Computer Medium
A. OCR (Optical Character Recognition)
B. Lossless compression
C. Color calibration
D. DPI scaling

31 A designer needs to draw freehand illustrations directly into the computer with pressure sensitivity. Which input device best supports this?

Getting Images into your Computer Medium
A. Flatbed scanner
B. Graphics tablet with stylus
C. Barcode reader
D. Standard optical mouse

32 A digital camera photo is stored on an SD card. What is the most common way to transfer these images to a computer?

Getting Images into your Computer Medium
A. Email each photo to the camera
B. Print the photos and rescan them
C. Use OCR to extract the photos
D. Connect via USB cable or insert the card into a card reader

33 A scanned photo appears too dark and has a slight color tint compared to the original print. Which adjustment step is most appropriate to correct it?

Getting Images into your Computer Medium
A. Increase the DPI and rescan at the same settings
B. Convert the file from PNG to GIF
C. Reduce the image resolution to fix the color
D. Adjust brightness/contrast and color balance in editing software

34 A user must edit individual pixels of a photograph, retouch blemishes, and apply filters. Which type of graphics software is designed for this?

Graphics Software Medium
A. Spreadsheet application
B. Vector editor like Illustrator/Inkscape
C. Raster (bitmap) editor like Photoshop/GIMP
D. Word processor

35 A logo designer wants artwork that stays crisp at any size and is defined by editable shapes and curves. Which software category fits best?

Graphics Software Medium
A. Video encoder
B. Vector graphics software
C. Raster image editor
D. Audio sequencer

36 In image editing software, what is the main purpose of using layers?

Graphics Software Medium
A. To permanently merge all content into one pixel grid
B. To edit separate elements independently without affecting the rest
C. To compress the file into a smaller size
D. To convert the image into vector paths

37 A user wants to isolate a subject from its background in a photo so only the subject can be edited. Which tool concept is most directly used?

Graphics Software Medium
A. Gradient fill tool
B. Selection/masking tools
C. Text tool
D. Zoom tool

38 Which option lists elements that are ALL considered components of multimedia?

Multimedia Basics Medium
A. Only text and images
B. Only printed documents and spreadsheets
C. Only audio and video
D. Text, audio, images, video, and animation

39 A museum kiosk lets visitors tap the screen to choose which exhibit video to watch. This is an example of which multimedia characteristic?

Multimedia Basics Medium
A. Buffering
B. Rasterization
C. Interactivity
D. Compression

40 A user starts watching an online video and it begins playing almost immediately while the rest continues downloading in the background. What is this technique called?

Multimedia Basics Medium
A. Rendering
B. Sampling
C. Streaming
D. Dithering

41 A photographer saves the same 24-bit RGB image once as PNG-24 and once as baseline JPEG at quality 90. Both look identical on screen, but the JPEG file is far smaller. Which statement best explains the size difference?

Understanding graphics File Formats Hard
A. JPEG stores fewer pixels by resampling the image to a lower resolution
B. PNG stores only 8-bit color while JPEG stores full 24-bit color
C. JPEG discards perceptually less important frequency information via lossy DCT quantization, while PNG uses lossless DEFLATE
D. PNG uses lossy DCT compression while JPEG uses lossless run-length encoding

42 You need a logo with a soft drop shadow that must blend smoothly over any web background color. Which format choice preserves the effect correctly and why?

Understanding graphics File Formats Hard
A. JPEG, because its lossy compression smooths the shadow edges
B. PNG-24 with an alpha channel, because it supports variable per-pixel transparency
C. BMP, because it is uncompressed and stores the most color data
D. GIF, because its 256-color palette handles gradients well

43 An uncompressed 24-bit color image is pixels. What is its approximate raw file size?

Understanding graphics File Formats Hard
A. About MB
B. About MB
C. About MB
D. About MB

44 A designer must animate a short 8-color loop that plays automatically in an email client with limited format support. Which format is the most appropriate?

Understanding graphics File Formats Hard
A. Animated GIF
B. Animated PNG (APNG)
C. Progressive JPEG
D. SVG with SMIL animation

45 Why does repeatedly opening a JPEG, making a small edit, and re-saving it as JPEG progressively degrade image quality?

Understanding graphics File Formats Hard
A. The DEFLATE dictionary shrinks with each save cycle
B. Each save re-applies lossy quantization, compounding data loss with every generation
C. JPEG metadata accumulates and overwrites pixel data
D. The file's color depth is reduced by 1 bit on each save

46 Which situation most clearly favors a vector format (e.g., SVG) over a raster format?

Understanding graphics File Formats Hard
A. A scanned handwritten manuscript
B. A photograph with continuous tonal gradients
C. A company logo that must scale from a favicon to a billboard without quality loss
D. A screenshot of a text editor window

47 A GIF image showing a smooth photographic sky exhibits visible stepped bands of color. What is the root cause?

Understanding graphics File Formats Hard
A. Interlacing applied during export
B. Restriction to a 256-color indexed palette
C. Missing alpha channel data
D. Lossy DCT compression artifacts

48 You scan a inch photo at dpi. What are the approximate pixel dimensions of the resulting image?

Getting Images into your Computer Hard
A. pixels
B. pixels
C. pixels
D. pixels

49 A user scans a printed magazine photo and notices a distracting wavy interference pattern across the image. What causes this, and what is a common fix?

Getting Images into your Computer Hard
A. Motion blur from a moving scan head; fix it by scanning slower
B. Aliasing from too few colors; fix it by scanning in grayscale
C. Moiré from overlapping halftone dot grids; fix it with the scanner's descreen filter
D. Chromatic aberration; correct it by increasing scan resolution

50 A digital camera lists a sensor as "12 megapixels." If the image aspect ratio is , what are the approximate pixel dimensions?

Getting Images into your Computer Hard
A.
B.
C.
D.

51 For archiving delicate documents you want maximum captured detail with no lossy compression. Which acquisition setting combination is most appropriate?

Getting Images into your Computer Hard
A. High optical dpi, saved as TIFF
B. High interpolated dpi, saved as JPEG
C. Screen-resolution capture, saved as PNG-8
D. Low optical dpi, saved as GIF

52 A scanner advertises " optical, dpi interpolated." Why can scanning at dpi fail to reveal more genuine detail than dpi?

Getting Images into your Computer Hard
A. Interpolated resolution mathematically invents pixels between real samples rather than capturing new detail
B. Interpolation converts the image to grayscale, hiding fine color detail
C. The scanner ignores any dpi setting above its optical minimum
D. The higher dpi setting automatically compresses the image more heavily

53 A team must edit a photo with layers and non-destructive adjustments, then also produce a resolution-independent icon. Which software pairing fits the two tasks best?

Graphics Software Hard
A. A raster editor (e.g., Photoshop) for the photo and a vector editor (e.g., Illustrator) for the icon
B. A vector editor for both tasks
C. A page-layout program for the photo and a raster editor for the icon
D. A raster editor for both tasks

54 In a raster paint program, why does scaling a small bitmap up by 400% look blocky, while doing the same in a vector program stays crisp?

Graphics Software Hard
A. Raster images are always lossy, while vector images are always lossless
B. Raster programs discard color data on enlargement, while vectors add color
C. Vector programs cache multiple pre-rendered sizes, while raster programs cache none
D. Raster images store fixed pixels that get enlarged, while vectors store equations recalculated at any size

55 An editor wants to brighten only the shadows of a photo repeatedly without permanently altering the original pixels. Which feature best supports this workflow?

Graphics Software Hard
A. Reducing the image bit depth to 8-bit
B. Flattening the image before each edit
C. Adjustment (non-destructive) layers
D. Applying filters directly to the background layer

56 Why is CMYK the appropriate working color mode for artwork destined for commercial print, whereas RGB suits screen output?

Graphics Software Hard
A. CMYK uses fewer channels, so it renders faster on monitors
B. RGB is lossy while CMYK is lossless, so print needs CMYK
C. CMYK is a subtractive model matching ink on paper, while RGB is additive matching emitted light
D. CMYK has a wider gamut than RGB, capturing more printable colors

57 One minute of CD-quality stereo audio is sampled at Hz with 16-bit samples on 2 channels. What is the approximate uncompressed size?

Multimedia Basics Hard
A. About MB
B. About MB
C. About MB
D. About MB

58 A student confuses a video "container" (like MP4) with a "codec" (like H.264). Which statement correctly distinguishes them?

Multimedia Basics Hard
A. A container is always lossless while a codec is always lossy
B. A container is a wrapper holding streams and metadata, while a codec defines how the media is encoded and decoded
C. A codec is the file extension while a container is the internal resolution setting
D. A container compresses audio while a codec compresses video, and both are required

59 A raw video is , 24-bit color, at 30 frames per second. What is its approximate uncompressed bitrate?

Multimedia Basics Hard
A. About Gbps
B. About Mbps
C. About Mbps
D. About Mbps

60 In interframe video compression, why can a corrupted or missing keyframe (I-frame) garble many subsequent frames, while a corrupted P-frame affects fewer?

Multimedia Basics Hard
A. P-frames are stored independently and never reference other frames
B. I-frames store audio data that all later frames need to render
C. P-frames and B-frames are reconstructed relative to the I-frame, so losing the reference breaks all frames that depend on it
D. I-frames are always the last frame in a group, so damage propagates backward