1Which of the following is a common file extension for a bitmap image?
Understanding graphics File Formats
Easy
A..exe
B..txt
C..bmp
D..mp3
Correct Answer: .bmp
Explanation:
The .bmp extension stands for bitmap, a standard raster image format. .mp3 is audio, .txt is text, and .exe is an executable.
Incorrect! Try again.
2The JPEG file format is best known for using which kind of compression?
Understanding graphics File Formats
Easy
A.Audio compression
B.No compression
C.Text compression
D.Lossy compression
Correct Answer: Lossy compression
Explanation:
JPEG uses lossy compression, which reduces file size by discarding some image data, making it popular for photographs.
Incorrect! Try again.
3Which graphics format supports transparency and lossless compression?
Understanding graphics File Formats
Easy
A.TXT
B.BMP
C.PNG
D.JPEG
Correct Answer: PNG
Explanation:
PNG (Portable Network Graphics) supports transparency and uses lossless compression, so no image quality is lost.
Incorrect! Try again.
4Which of the following is an animated image format commonly used on the web?
Understanding graphics File Formats
Easy
A.PDF
B.GIF
C.BMP
D.TIFF
Correct Answer: GIF
Explanation:
GIF (Graphics Interchange Format) supports simple animations and is widely used on the web.
Incorrect! Try again.
5Images made up of pixels are called what type of graphics?
Understanding graphics File Formats
Easy
A.Sound graphics
B.Vector graphics
C.Text graphics
D.Raster graphics
Correct Answer: Raster graphics
Explanation:
Raster graphics (also called bitmap graphics) are made up of a grid of individual pixels.
Incorrect! Try again.
6Vector graphics are made up of which of the following?
Understanding graphics File Formats
Easy
A.Individual pixels
B.Sound waves
C.Text characters
D.Mathematical paths and shapes
Correct Answer: Mathematical paths and shapes
Explanation:
Vector graphics use mathematical formulas to describe lines, curves, and shapes, so they scale without losing quality.
Incorrect! Try again.
7What does the abbreviation GIF stand for?
Understanding graphics File Formats
Easy
A.Global Image Frame
B.Graphic Internet Format
C.Graphics Interchange Format
D.General Image File
Correct Answer: Graphics Interchange Format
Explanation:
GIF stands for Graphics Interchange Format, developed for sharing images across systems.
Incorrect! Try again.
8Which device is most commonly used to convert a printed photo into a digital image?
Getting Images into your Computer
Easy
A.Keyboard
B.Speaker
C.Scanner
D.Printer
Correct Answer: Scanner
Explanation:
A scanner captures a printed image or document and converts it into a digital file.
Incorrect! Try again.
9Which device captures images directly in digital form without needing film?
Getting Images into your Computer
Easy
A.Monitor
B.Microphone
C.Digital camera
D.Plotter
Correct Answer: Digital camera
Explanation:
A digital camera captures images electronically and stores them as digital files, no film required.
Incorrect! Try again.
10The resolution of a scanned image is usually measured in which unit?
Getting Images into your Computer
Easy
A.MHz (megahertz)
B.RPM (rotations per minute)
C.KB (kilobytes)
D.DPI (dots per inch)
Correct Answer: DPI (dots per inch)
Explanation:
Scanner resolution is measured in DPI (dots per inch); a higher DPI means more detail is captured.
Incorrect! Try again.
11Which of the following can be used to capture a still image from a video signal?
Getting Images into your Computer
Easy
A.Trackball
B.Frame grabber
C.Sound card
D.Barcode reader
Correct Answer: Frame grabber
Explanation:
A frame grabber captures individual still frames from a live or recorded video source.
Incorrect! Try again.
12Downloading pictures from the internet is one way to do what?
Getting Images into your Computer
Easy
A.Compress audio
B.Delete images
C.Get images into your computer
D.Print images
Correct Answer: Get images into your computer
Explanation:
Downloading is a common method of getting images into a computer, along with scanning and using a digital camera.
Incorrect! Try again.
13Which software is primarily used for editing raster (bitmap) images?
Graphics Software
Easy
A.Microsoft Excel
B.Notepad
C.Adobe Photoshop
D.VLC Media Player
Correct Answer: Adobe Photoshop
Explanation:
Adobe Photoshop is a well-known raster image editing program used to modify and enhance photos.
Incorrect! Try again.
14Which type of software is best suited for creating scalable logos and illustrations?
Graphics Software
Easy
A.Word processing software
B.Database software
C.Vector graphics software
D.Antivirus software
Correct Answer: Vector graphics software
Explanation:
Vector graphics software like Adobe Illustrator creates images that can be scaled to any size without quality loss.
Incorrect! Try again.
15Which of the following is a simple graphics program included with Microsoft Windows?
Graphics Software
Easy
A.Task Manager
B.Paint
C.Calculator
D.WordPad
Correct Answer: Paint
Explanation:
Microsoft Paint is a basic drawing and image editing program bundled with Windows.
Incorrect! Try again.
16In graphics software, what does the term "layer" refer to?
Graphics Software
Easy
A.A separate level that can be edited independently
B.A sound effect
C.A type of image file
D.A printing setting
Correct Answer: A separate level that can be edited independently
Explanation:
Layers let you stack and edit parts of an image independently without affecting the rest.
Incorrect! Try again.
17Which of the following best describes multimedia?
Multimedia Basics
Easy
A.Only still photographs
B.A combination of text, audio, images, animation, and video
C.Only printed text
D.Only sound files
Correct Answer: A combination of text, audio, images, animation, and video
Explanation:
Multimedia combines multiple content forms such as text, audio, graphics, animation, and video.
Incorrect! Try again.
18Which of the following is an example of a multimedia element?
Multimedia Basics
Easy
A.Latency
B.Audio
C.Voltage
D.Bandwidth
Correct Answer: Audio
Explanation:
Audio is a core multimedia element, alongside text, images, video, and animation.
Incorrect! Try again.
19Which hardware component is required to hear the audio part of a multimedia presentation?
Multimedia Basics
Easy
A.Speakers
B.Scanner
C.Modem
D.Mouse
Correct Answer: Speakers
Explanation:
Speakers (or headphones) are needed to output the audio in a multimedia presentation.
Incorrect! Try again.
20The ability of the user to control and interact with multimedia content is called what?
Multimedia Basics
Easy
A.Compression
B.Interactivity
C.Encryption
D.Resolution
Correct Answer: Interactivity
Explanation:
Interactivity refers to the user's ability to control and respond to multimedia content, such as clicking menus or buttons.
Incorrect! Try again.
21A 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.TIFF
B.GIF or PNG-8
C.JPEG
D.BMP
Correct Answer: GIF or PNG-8
Explanation:
GIF and PNG-8 support transparency and use lossless compression that works well for images with few flat colors. JPEG does not support transparency, and BMP/TIFF produce much larger files.
Incorrect! Try again.
22A 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 converts the image to grayscale automatically
B.JPEG reduces the resolution by half each time
C.JPEG removes the color profile after the first save
D.JPEG uses lossy compression that discards data on each save
Correct Answer: JPEG uses lossy compression that discards data on each save
Explanation:
JPEG is a lossy format, so every re-save recompresses and throws away more image data, causing cumulative quality loss known as generation loss.
Incorrect! Try again.
23You 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 JPEG
B.Vector (e.g., SVG)
C.Raster GIF
D.Raster PNG
Correct Answer: Vector (e.g., SVG)
Explanation:
Vector formats store images as mathematical paths, so they scale to any size without quality loss. Raster formats (JPEG, PNG, GIF) are made of fixed pixels and become blurry or jagged when enlarged.
Incorrect! Try again.
24A 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.GIF
B.JPEG
C.BMP
D.SVG
Correct Answer: GIF
Explanation:
GIF supports simple frame-based animation and is widely supported in email clients. JPEG and BMP cannot animate, and SVG animation is not reliably supported in older email systems.
Incorrect! Try again.
25An 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 MB
D.About KB
Correct Answer: About MB
Explanation:
Raw size bytes bytes MB, since 24-bit color uses 3 bytes per pixel.
Incorrect! Try again.
26A 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 uses lossy compression for photos
B.JPEG, because it supports transparency for photos
C.JPEG, because lossy compression greatly reduces size on photos
D.PNG, because it always makes photos smaller
Correct Answer: JPEG, because lossy compression greatly reduces size on photos
Explanation:
JPEG's lossy compression is very effective on continuous-tone photographs, producing much smaller files. PNG is lossless and typically larger for photos, and it is JPEG that lacks transparency, not PNG.
Incorrect! Try again.
27Which statement correctly distinguishes lossless from lossy compression?
Understanding graphics File Formats
Medium
A.Lossless always produces smaller files than lossy
B.Both discard data but lossless can rebuild it exactly
C.Lossy preserves all data; lossless removes redundant data permanently
D.Lossless preserves all original data; lossy discards some data permanently
Correct Answer: Lossless preserves all original data; lossy discards some data permanently
Explanation:
Lossless compression reconstructs the exact original data, while lossy compression permanently removes some data to achieve smaller files.
Incorrect! Try again.
28A 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.Digital camera held by hand
B.Flatbed scanner
C.Graphics tablet
D.Webcam
Correct Answer: Flatbed scanner
Explanation:
A flatbed scanner captures flat printed material at high, consistent resolution. A handheld camera or webcam introduces angle and lighting problems, and a graphics tablet is for drawing input, not capturing existing prints.
Incorrect! Try again.
29When 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.More detail is captured and the file size increases
B.Less detail is captured and the file size decreases
C.Detail stays the same but colors improve
D.The image is automatically compressed to JPEG
Correct Answer: More detail is captured and the file size increases
Explanation:
Higher DPI means more sample points per inch, capturing finer detail while producing more pixels and therefore a larger file.
Incorrect! Try again.
30A 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.DPI scaling
B.Lossless compression
C.Color calibration
D.OCR (Optical Character Recognition)
Correct Answer: OCR (Optical Character Recognition)
Explanation:
OCR analyzes the scanned image and recognizes characters, converting the picture of text into editable, searchable text. The other options do not produce editable text.
Incorrect! Try again.
31A 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.Standard optical mouse
B.Barcode reader
C.Graphics tablet with stylus
D.Flatbed scanner
Correct Answer: Graphics tablet with stylus
Explanation:
A graphics tablet with a stylus captures freehand strokes and pressure levels, ideal for digital illustration. A scanner captures existing images, a mouse lacks pressure sensitivity, and a barcode reader reads codes only.
Incorrect! Try again.
32A 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.Print the photos and rescan them
B.Connect via USB cable or insert the card into a card reader
C.Email each photo to the camera
D.Use OCR to extract the photos
Correct Answer: Connect via USB cable or insert the card into a card reader
Explanation:
Cameras and their memory cards are transferred through a USB connection or a card reader, which mounts the storage so files can be copied. OCR is for text, and the other options are impractical.
Incorrect! Try again.
33A 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.Convert the file from PNG to GIF
B.Increase the DPI and rescan at the same settings
C.Adjust brightness/contrast and color balance in editing software
D.Reduce the image resolution to fix the color
Correct Answer: Adjust brightness/contrast and color balance in editing software
Explanation:
Tonal and color problems are corrected by adjusting brightness, contrast, and color balance. Changing DPI or format does not fix color issues, and lowering resolution only loses detail.
Incorrect! Try again.
34A 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.Word processor
C.Raster (bitmap) editor like Photoshop/GIMP
D.Vector editor like Illustrator/Inkscape
Correct Answer: Raster (bitmap) editor like Photoshop/GIMP
Explanation:
Raster editors work at the pixel level, which is ideal for photo retouching and filters. Vector editors manipulate paths and shapes, not individual pixels.
Incorrect! Try again.
35A 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.Vector graphics software
B.Audio sequencer
C.Video encoder
D.Raster image editor
Correct Answer: Vector graphics software
Explanation:
Vector software defines art as mathematical shapes and curves that scale cleanly, making it the standard choice for logos. Raster editors depend on fixed pixels.
Incorrect! Try again.
36In 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 convert the image into vector paths
C.To compress the file into a smaller size
D.To edit separate elements independently without affecting the rest
Correct Answer: To edit separate elements independently without affecting the rest
Explanation:
Layers keep elements on separate stacked levels so each can be moved or edited independently, which is why they are central to non-destructive editing.
Incorrect! Try again.
37A 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.Zoom tool
B.Selection/masking tools
C.Text tool
D.Gradient fill tool
Correct Answer: Selection/masking tools
Explanation:
Selection and masking tools define which area of the image is active for editing, allowing the subject to be isolated from the background. The other tools serve different functions.
Incorrect! Try again.
38Which option lists elements that are ALL considered components of multimedia?
Multimedia Basics
Medium
A.Only audio and video
B.Only text and images
C.Text, audio, images, video, and animation
D.Only printed documents and spreadsheets
Correct Answer: Text, audio, images, video, and animation
Explanation:
Multimedia combines multiple media types, text, audio, images, video, and animation, into a single integrated experience.
Incorrect! Try again.
39A 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.Compression
C.Rasterization
D.Interactivity
Correct Answer: Interactivity
Explanation:
Allowing the user to control and respond to content through input like tapping is interactivity, a defining feature of interactive multimedia.
Incorrect! Try again.
40A 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.Dithering
B.Streaming
C.Rendering
D.Sampling
Correct Answer: Streaming
Explanation:
Streaming delivers media continuously so playback can begin before the entire file has downloaded. Rendering, sampling, and dithering refer to unrelated processes.
Incorrect! Try again.
41A 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 discards perceptually less important frequency information via lossy DCT quantization, while PNG uses lossless DEFLATE
C.PNG stores only 8-bit color while JPEG stores full 24-bit color
D.JPEG stores fewer pixels by resampling the image to a lower resolution
Correct Answer: JPEG discards perceptually less important frequency information via lossy DCT quantization, while PNG uses lossless DEFLATE
Explanation:
JPEG applies the Discrete Cosine Transform and quantizes high-frequency coefficients, discarding detail the eye barely notices. PNG uses lossless DEFLATE compression, so it must retain every pixel exactly, producing a larger file.
Incorrect! Try again.
42You 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.BMP, because it is uncompressed and stores the most color data
B.JPEG, because its lossy compression smooths the shadow edges
C.PNG-24 with an alpha channel, because it supports variable per-pixel transparency
D.GIF, because its 256-color palette handles gradients well
Correct Answer: PNG-24 with an alpha channel, because it supports variable per-pixel transparency
Explanation:
A soft shadow needs partial transparency at many opacity levels. Only PNG-24's 8-bit alpha channel supports smooth per-pixel transparency. GIF offers only 1-bit (on/off) transparency, and JPEG/BMP support none.
Incorrect! Try again.
43An 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
Correct Answer: About MB
Explanation:
Raw size bytes bytes MB (dividing by ). The 24-bit depth means 3 bytes per pixel.
Incorrect! Try again.
44A 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.Progressive JPEG
B.Animated PNG (APNG)
C.Animated GIF
D.SVG with SMIL animation
Correct Answer: Animated GIF
Explanation:
Animated GIF supports simple looping animation with an indexed palette (up to 256 colors) and has the broadest support across older and restrictive clients like email. APNG and SVG animation lack universal support, and JPEG cannot animate.
Incorrect! Try again.
45Why 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.Each save re-applies lossy quantization, compounding data loss with every generation
B.The file's color depth is reduced by 1 bit on each save
C.JPEG metadata accumulates and overwrites pixel data
D.The DEFLATE dictionary shrinks with each save cycle
Correct Answer: Each save re-applies lossy quantization, compounding data loss with every generation
Explanation:
This is generation loss. Every JPEG save re-runs DCT and quantization, throwing away additional information each time even without visible edits, so quality erodes cumulatively. Editing in a lossless format avoids this.
Incorrect! Try again.
46Which situation most clearly favors a vector format (e.g., SVG) over a raster format?
Understanding graphics File Formats
Hard
A.A photograph with continuous tonal gradients
B.A scanned handwritten manuscript
C.A screenshot of a text editor window
D.A company logo that must scale from a favicon to a billboard without quality loss
Correct Answer: A company logo that must scale from a favicon to a billboard without quality loss
Explanation:
Vectors store shapes as mathematical paths, so they scale to any size without pixelation. Photographs and scans are continuous-tone raster content that vectors handle poorly, making the resolution-independent logo the ideal vector use case.
Incorrect! Try again.
47A GIF image showing a smooth photographic sky exhibits visible stepped bands of color. What is the root cause?
Understanding graphics File Formats
Hard
A.Lossy DCT compression artifacts
B.Restriction to a 256-color indexed palette
C.Interlacing applied during export
D.Missing alpha channel data
Correct Answer: Restriction to a 256-color indexed palette
Explanation:
GIF supports a maximum of 256 colors. A smooth gradient needs thousands of subtle shades, so it must be approximated with a limited palette, producing visible banding (posterization). Dithering reduces but does not eliminate this.
Incorrect! Try again.
48You 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
Correct Answer: pixels
Explanation:
Pixels = inches dpi. So and , giving pixels.
Incorrect! Try again.
49A 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.Chromatic aberration; correct it by increasing scan resolution
D.Moiré from overlapping halftone dot grids; fix it with the scanner's descreen filter
Correct Answer: Moiré from overlapping halftone dot grids; fix it with the scanner's descreen filter
Explanation:
Printed images use halftone dot patterns. When the scanner's sampling grid interferes with that dot grid, a moiré pattern appears. A descreen (or blur/resample) filter smooths the halftone dots to remove it.
Incorrect! Try again.
50A 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.
Correct Answer:
Explanation:
For a ratio, width and height , so . That gives , which also multiplies to 12 megapixels.
Incorrect! Try again.
51For 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.Low optical dpi, saved as GIF
B.High interpolated dpi, saved as JPEG
C.High optical dpi, saved as TIFF
D.Screen-resolution capture, saved as PNG-8
Correct Answer: High optical dpi, saved as TIFF
Explanation:
Optical (true hardware) resolution captures real detail, unlike interpolated resolution which invents pixels. TIFF stores data losslessly, making high optical dpi + TIFF the best archival combination. JPEG would introduce lossy artifacts.
Incorrect! Try again.
52A 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.Interpolation converts the image to grayscale, hiding fine color detail
B.The scanner ignores any dpi setting above its optical minimum
C.The higher dpi setting automatically compresses the image more heavily
D.Interpolated resolution mathematically invents pixels between real samples rather than capturing new detail
Correct Answer: Interpolated resolution mathematically invents pixels between real samples rather than capturing new detail
Explanation:
Optical resolution is limited by the sensor's physical sampling. Interpolation upsamples by estimating in-between pixels, enlarging the file but adding no true detail beyond what the optical resolution captured.
Incorrect! Try again.
53A 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 raster editor for both tasks
D.A page-layout program for the photo and a raster editor for the icon
Correct Answer: A raster editor (e.g., Photoshop) for the photo and a vector editor (e.g., Illustrator) for the icon
Explanation:
Photo editing with layers and pixel adjustments is a raster task. A scalable icon requires path-based vector editing. Matching each task to the right tool type gives the best result.
Incorrect! Try again.
54In 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?
B.Raster programs discard color data on enlargement, while vectors add color
C.Raster images are always lossy, while vector images are always lossless
D.Raster images store fixed pixels that get enlarged, while vectors store equations recalculated at any size
Correct Answer: Raster images store fixed pixels that get enlarged, while vectors store equations recalculated at any size
Explanation:
A bitmap has a fixed grid of pixels; enlarging it stretches each pixel into visible blocks. Vector art stores geometric definitions that are re-rendered mathematically at the target size, staying sharp at any scale.
Incorrect! Try again.
55An 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.Adjustment (non-destructive) layers
B.Applying filters directly to the background layer
Adjustment layers apply corrections as a separate, re-editable instruction over the pixels without changing them. This lets the editor tweak or remove the effect anytime, unlike destructive edits baked directly into the pixel data.
Incorrect! Try again.
56Why is CMYK the appropriate working color mode for artwork destined for commercial print, whereas RGB suits screen output?
Graphics Software
Hard
A.CMYK has a wider gamut than RGB, capturing more printable colors
B.CMYK is a subtractive model matching ink on paper, while RGB is additive matching emitted light
C.CMYK uses fewer channels, so it renders faster on monitors
D.RGB is lossy while CMYK is lossless, so print needs CMYK
Correct Answer: CMYK is a subtractive model matching ink on paper, while RGB is additive matching emitted light
Explanation:
Printing lays down cyan, magenta, yellow, and black inks that subtract light reflected off paper. Monitors emit and add red, green, and blue light. Working in the mode that matches the output device gives predictable color.
Incorrect! Try again.
57One 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
Correct Answer: About MB
Explanation:
Bytes bytes MB. This is why lossy codecs like MP3 are used for distribution.
Incorrect! Try again.
58A student confuses a video "container" (like MP4) with a "codec" (like H.264). Which statement correctly distinguishes them?
Multimedia Basics
Hard
A.A codec is the file extension while a container is the internal resolution setting
B.A container is a wrapper holding streams and metadata, while a codec defines how the media is encoded and decoded
C.A container is always lossless while a codec is always lossy
D.A container compresses audio while a codec compresses video, and both are required
Correct Answer: A container is a wrapper holding streams and metadata, while a codec defines how the media is encoded and decoded
Explanation:
The container (e.g., MP4, MKV) packages video, audio, subtitle streams and metadata together. The codec (e.g., H.264, AAC) is the algorithm that encodes/decodes each stream. One container can hold streams using different codecs.
Incorrect! Try again.
59A raw video is , 24-bit color, at 30 frames per second. What is its approximate uncompressed bitrate?
Multimedia Basics
Hard
A.About Mbps
B.About Mbps
C.About Mbps
D.About Gbps
Correct Answer: About Gbps
Explanation:
Bits per frame Mbit. At 30 fps that is Gbps. Such enormous rates are why video codecs and compression are essential for storage and streaming.
Incorrect! Try again.
60In 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 and B-frames are reconstructed relative to the I-frame, so losing the reference breaks all frames that depend on it
B.I-frames are always the last frame in a group, so damage propagates backward
C.I-frames store audio data that all later frames need to render
D.P-frames are stored independently and never reference other frames
Correct Answer: P-frames and B-frames are reconstructed relative to the I-frame, so losing the reference breaks all frames that depend on it
Explanation:
An I-frame is a complete self-contained image; the P/B-frames in its group of pictures store only changes relative to it. If the reference I-frame is lost, every dependent frame in that group cannot be correctly rebuilt.
Incorrect! Try again.
Did this save you a night before the exam?
LPU Notes is free, and it stays free. Ads cover part of the server bill.
The rest comes out of a student's own pocket: the domain, the storage,
and keeping the site up through the weeks everyone needs it at once.
The payment button didn't load. An ad blocker or a filtered network is the usual reason.
to try again.
Nothing here is ever locked, and nothing unlocks. Chip in only if it was worth it.
What it pays for →