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Assam ASSEB HS Multimedia and Web Technology study materials
Assam ASSEB HS Multimedia and Web Technology study resources

Assam ASSEB HS Multimedia and Web Technology practice questions

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Question 1Multimedia Fundamentals and Authoring

In a bitmap image, what does the term resolution primarily describe?

  1. The physical size of the monitor used to view it
  2. The compression ratio applied when the file is saved
  3. The number of pixels the image contains horizontally and vertically Correct answer.
  4. The number of colours stored in the image palette

Explanation

Bitmap resolution counts the pixel grid, usually written as width by height, so it fixes how much detail the image can hold. Display size and file size depend on other settings such as DPI and compression, not on the pixel count alone.

Question 2Multimedia Fundamentals and Authoring

A designer saves a logo that must scale to a billboard without pixelation. Which graphics format is most suitable?

  1. Raster graphics
  2. Indexed-colour GIF
  3. Vector graphics Correct answer.
  4. JPEG photograph

Explanation

Vector graphics store shapes as mathematical paths, so they can be enlarged indefinitely without losing sharpness. Raster formats store a fixed pixel grid and show blocky edges when scaled far beyond their native size.

Question 3Multimedia Fundamentals and Authoring

Which colour model is subtractive and is used when mixing inks for printed multimedia posters?

  1. HSV
  2. HSL
  3. CMYK Correct answer.
  4. RGB

Explanation

CMYK is a subtractive model because cyan, magenta and yellow pigments absorb light and subtract it from white paper, with black added for depth. RGB is additive and is used for screens that emit light.

Question 4Multimedia Fundamentals and Authoring

What is the main purpose of keyframe animation in multimedia authoring?

  1. To record every frame manually without any interpolation
  2. To define important positions and let software interpolate intermediate frames Correct answer.
  3. To compress audio streams alongside video
  4. To convert vector shapes into bitmap images

Explanation

In keyframe animation the author sets key poses and the software calculates the in-between frames by interpolation. This greatly reduces the number of frames that must be drawn by hand.

Question 5Multimedia Fundamentals and Authoring

Which sampling rate is standard for audio CDs and therefore common in high-quality multimedia projects?

  1. 44.1 kHz Correct answer.
  2. 8 kHz
  3. 22.05 kHz
  4. 96 kHz

Explanation

Audio CDs use a sampling rate of 44,100 samples per second, which comfortably covers the audible range up to about 20 kHz. Higher rates such as 96 kHz are used in professional recording but are not the CD standard.

Question 6Multimedia Fundamentals and Authoring

In a multimedia title, what does the term storyboard refer to?

  1. The copyright licence attached to assets
  2. A sequence of sketches showing planned scenes and transitions Correct answer.
  3. The final compressed video export
  4. A list of file formats used in the project

Explanation

A storyboard is a visual plan that sketches each scene in order together with navigation and transition notes. It helps the team agree on structure before production begins.

Question 7Multimedia Fundamentals and Authoring

Which file format supports lossless compression and transparency in a single web graphic?

  1. AVI
  2. JPEG
  3. MP3
  4. PNG Correct answer.

Explanation

PNG uses lossless compression and carries an alpha channel, so it supports smooth transparency. JPEG is lossy and lacks transparency, while MP3 and AVI are audio and video containers.

Question 8Multimedia Fundamentals and Authoring

What is the function of a plug-in in a multimedia authoring environment?

  1. It permanently replaces the authoring software
  2. It converts the operating system to a different platform
  3. It stores the project's source assets
  4. It extends the host application with extra features such as new codecs or effects Correct answer.

Explanation

A plug-in is an add-on module that adds capabilities to a host program, for example extra video codecs or effect filters. It works inside the host rather than replacing it.

Question 9Multimedia Fundamentals and Authoring

A 10-second stereo audio clip is recorded at 44.1 kHz with 16-bit samples. Approximately how much uncompressed data does it contain?

  1. About 0.44 MB
  2. About 7.05 MB
  3. About 1.76 MB Correct answer.
  4. About 3.53 MB

Explanation

Each second needs 44,100 samples times 16 bits times 2 channels, which is 1,411,200 bits or about 176,400 bytes. For 10 seconds this gives roughly 1.76 MB of uncompressed data.

Question 10Multimedia Fundamentals and Authoring

When rendering a 25 fps animation, how many frames are needed for a 4-second sequence?

  1. 50 frames
  2. 100 frames Correct answer.
  3. 25 frames
  4. 400 frames

Explanation

Frame count equals frame rate multiplied by duration, so 25 frames per second times 4 seconds gives 100 frames. This figure is used to plan rendering time and storage.

Question 11Multimedia Fundamentals and Authoring

Which authoring approach gives the author the most direct control over timing and interactivity logic?

  1. Automatic wizard generation
  2. Scripting or timeline-based authoring Correct answer.
  3. Passive video playback
  4. Template-based slide authoring

Explanation

Scripting and timeline authoring expose frame timing, events and conditional logic to the author. Templates and wizards hide these details, limiting precise control.

Question 12Multimedia Fundamentals and Authoring

In a multimedia project, which element is best described as non-linear navigation?

  1. A menu that lets the learner jump to any chapter in any order Correct answer.
  2. A video that plays from start to finish automatically
  3. A slide that advances after a fixed delay
  4. An audio track that loops continuously

Explanation

Non-linear navigation lets users choose their own path through content rather than following a fixed sequence. A branching menu with free jumps is the clearest example.

Question 13Multimedia Fundamentals and Authoring

Which statement correctly distinguishes GIF from JPEG for web use?

  1. GIF supports millions of colours, while JPEG is limited to 256 colours
  2. Both formats are lossless and support animation
  3. GIF supports simple animation and a 256-colour palette, while JPEG supports millions of colours but no animation Correct answer.
  4. JPEG supports transparency and animation, while GIF does not

Explanation

GIF is an indexed format limited to 256 colours per frame but can store multiple frames for simple animation. JPEG stores continuous-tone colour with lossy compression but has no animation support.

Question 14Multimedia Fundamentals and Authoring

What does the alpha channel of an image control?

  1. The audio synchronisation offset
  2. The opacity of each pixel Correct answer.
  3. The frame rate of the animation
  4. The hue rotation of the image

Explanation

An alpha channel stores a per-pixel transparency value, allowing smooth blending over backgrounds. Colour information is held separately in the colour channels.

Question 15Multimedia Fundamentals and Authoring

A video editor wants smaller files with minimal visible quality loss for web streaming. Which choice is most appropriate?

  1. BMP image sequence with WAV audio
  2. Uncompressed AVI with PCM audio
  3. H.264 video with AAC audio in an MP4 container Correct answer.
  4. Animated GIF with no audio track

Explanation

H.264 provides efficient lossy compression for video and AAC does the same for audio, and both fit neatly in an MP4 container for streaming. The other options either waste bandwidth or cannot carry synchronised sound efficiently.

Question 16Multimedia Fundamentals and Authoring

Which property of a colour is described by its saturation?

  1. Its transparency level
  2. Its perceived brightness
  3. Its position on the colour wheel
  4. Its purity or intensity, ranging from grey to vivid Correct answer.

Explanation

Saturation measures how pure or intense a colour is; low saturation moves toward grey while high saturation is vivid. Hue describes position on the wheel and value or lightness describes brightness.

Question 17Multimedia Fundamentals and Authoring

A student needs to place a small looping background sound in a web page without using a heavy video container. Which format is most suitable?

  1. MP3 audio file Correct answer.
  2. SVG vector file
  3. PNG image file
  4. MP4 video file

Explanation

MP3 is a compact audio format widely supported by browsers and ideal for short looping background sound. The other formats either carry video or store images rather than sound.

Question 18Multimedia Fundamentals and Authoring

What is the main trade-off when increasing colour depth from 8-bit to 24-bit in an image?

  1. Resolution increases while the file shrinks
  2. The image becomes vector-based
  3. More colours are available but the file becomes larger Correct answer.
  4. Fewer colours are available and the file shrinks

Explanation

Higher colour depth stores more bits per pixel, so the palette grows to millions of colours but memory and file size rise accordingly. Resolution and vector status are separate properties.

Question 19Multimedia Fundamentals and Authoring

In multimedia authoring, what is a sprite?

  1. The master audio track of a project
  2. The background layer of a scene
  3. The export preset used for publishing
  4. A small independent graphic object that can be moved and animated on its own Correct answer.

Explanation

A sprite is a discrete graphical object with its own position and animation behaviour, commonly used for characters or objects. It is managed separately from the static background.

Question 20Multimedia Fundamentals and Authoring

Which statement best explains why lossy compression is unsuitable for repeated editing of a master audio file?

  1. It removes the need for a sampling rate
  2. It makes the file larger with every save
  3. It converts the audio into a video stream
  4. Each save discards more data, so artefacts accumulate over generations Correct answer.

Explanation

Lossy codecs permanently discard information that cannot be recovered, so repeated decode-edit-encode cycles compound the loss. Masters are therefore kept in lossless formats until final export.

Question 21Multimedia Fundamentals and Authoring

An authoring team must deliver interactive content that runs identically on many devices without installing a player. Which technology choice fits best?

  1. An uncompressed video file on a disc
  2. A proprietary runtime that requires a separate installer
  3. A native desktop executable
  4. HTML5 with JavaScript and CSS Correct answer.

Explanation

HTML5 with JavaScript and CSS runs in standard browsers on many devices without extra installation, making it the most portable interactive choice. Native executables and proprietary runtimes depend on a specific platform or installer.

Question 22Multimedia Fundamentals and Authoring

A 30-second video is compressed to 6 MB. What is its approximate average bitrate?

  1. 160 Mbps
  2. 16 Mbps
  3. 0.16 Mbps
  4. 1.6 Mbps Correct answer.

Explanation

Bitrate equals file size in bits divided by duration in seconds. Six megabytes is about 48 megabits, and dividing by 30 seconds gives roughly 1.6 megabits per second.

Question 23Multimedia Fundamentals and Authoring

Why does an authoring tool benefit from separating the project file from exported media assets?

  1. It converts all assets to vector format automatically
  2. It removes the need for compression on export
  3. The project keeps editable structure and links, while exports are flattened for delivery Correct answer.
  4. It guarantees the project cannot be edited again

Explanation

The project file preserves layers, timelines and editable references, whereas an export bakes everything into a deliverable format for playback. This separation lets the author revise work without losing structure.

Question 24Multimedia Fundamentals and Authoring

An animation uses motion tweening between two keyframes. Which change would most likely break the tween?

  1. Replacing the symbol in the end keyframe with a different symbol instance Correct answer.
  2. Moving the end keyframe later on the timeline
  3. Changing the tween's rotation setting
  4. Adjusting the easing curve of the tween

Explanation

Motion tweens interpolate properties of the same symbol instance, so swapping in a different symbol breaks the continuity the tween relies on. Easing, timing and rotation settings are all tween parameters that can be adjusted safely.

Question 25Multimedia Fundamentals and Authoring

A team must synchronise narration with on-screen captions in a timeline-based authoring tool. Which approach gives the most reliable sync?

  1. Letting each element autoplay with independent random delays
  2. Converting the narration to a static image sequence
  3. Placing audio and caption events on the same timeline and aligning them to shared time markers Correct answer.
  4. Exporting audio and captions separately and hoping they start together

Explanation

A shared timeline with common time markers keeps audio and caption events locked to the same clock, so edits stay synchronised. Independent playback or separate exports drift apart easily.

Question 26Multimedia Fundamentals and Authoring

In multimedia authoring, which characteristic distinguishes vector graphics from raster graphics?

  1. Vector graphics store each pixel as a fixed colour value in a grid.
  2. Vector graphics store images as mathematical descriptions of shapes and paths. Correct answer.
  3. Vector graphics lose sharpness whenever they are enlarged.
  4. Vector graphics are limited to a maximum of 256 colours per file.

Explanation

Vector graphics describe shapes through geometric primitives such as points, lines and curves, so the renderer recalculates the image at whatever size is needed. Raster graphics instead record a fixed grid of pixels, which is why they show blockiness when scaled up. This difference makes vector art preferable for logos and interface elements that must stay crisp at many sizes.

Question 27Multimedia Fundamentals and Authoring

A designer must prepare a short animated banner where several independently moving objects overlap and each needs its own timing. Which authoring concept directly supports this requirement?

  1. A higher colour depth applied to the exported file.
  2. One long frame that holds all objects for the whole duration.
  3. A single static background bitmap placed on the main timeline.
  4. Layers with separate keyframe sequences for each animated object. Correct answer.

Explanation

Timeline-based authoring uses layers so that each object can have its own keyframes, duration and stacking order while sharing one playback timeline. Overlapping objects are resolved by layer order, and independent timing is achieved by placing keyframes on separate layers. Colour depth affects visual quality only and has no bearing on animation timing.

Question 28Multimedia Fundamentals and Authoring

Which statement correctly describes the role of the sample rate when digitising sound?

  1. It determines how many volume levels the playback device can output.
  2. It fixes the maximum file size allowed for the audio clip.
  3. It sets the number of bits used to store each amplitude value.
  4. It sets how many amplitude measurements are captured per second. Correct answer.

Explanation

Sample rate is the number of amplitude snapshots taken each second, expressed in hertz; a higher rate captures faster changes in the waveform and supports higher frequencies. Bit depth, by contrast, sets the number of discrete levels used for each captured value. The two parameters together determine the fidelity and the resulting data size.

Question 29Multimedia Fundamentals and Authoring

Which authoring model is most suitable for a title whose content is organised as pages linked by navigation buttons with no fixed playback order?

  1. Script-only procedural generation
  2. Linear video editing
  3. Frame-by-frame timeline animation
  4. Card-and-page based authoring Correct answer.

Explanation

Card-and-page authoring structures a title as discrete screens connected by links, so the user chooses the path and there is no fixed playback order. This matches reference material, kiosks and simple interactive lessons. Timeline animation and linear video editing both impose a predetermined sequence.

Question 30Multimedia Fundamentals and Authoring

An author imports a 4000 x 3000 pixel photograph but displays it in a 400 x 300 pixel area of the final title. What is the most effective step to reduce memory use during playback without visible quality loss?

  1. Increase the colour depth of the imported photograph.
  2. Resample the image to roughly the display size before importing. Correct answer.
  3. Store the original image and let the player scale it each frame.
  4. Convert the photograph to a vector format for scaling.

Explanation

An oversized bitmap occupies memory in proportion to its pixel count, and scaling it down at run time still requires the full image to be held and processed. Resampling to about the display size removes pixels that can never be shown, cutting memory and decoding cost with no visible change. The original should be kept as a master outside the delivered title.

Question 31Graphics, Image Editing and Digital Animation

A designer needs to enlarge a company logo many times without any loss of edge sharpness. Which source format is most appropriate?

  1. A BMP saved at screen resolution
  2. A JPEG photograph of the logo
  3. A GIF with a transparent background
  4. A vector format such as SVG Correct answer.

Explanation

Vector graphics store shapes as mathematical paths, so they can be scaled to any size and re-rendered with clean edges. Raster formats such as JPEG, GIF and BMP store a fixed pixel grid that becomes visibly blocky when enlarged.

Question 32Graphics, Image Editing and Digital Animation

Which colour model is subtractive and is therefore used when preparing artwork for CMYK printing?

  1. RGB
  2. HSL
  3. HSV
  4. CMYK Correct answer.

Explanation

CMYK works by subtracting light: cyan, magenta and yellow inks absorb parts of white light and black adds density. RGB is additive because it mixes emitted light, and HSV and HSL are descriptive colour-space models rather than ink-mixing systems.

Question 33Graphics, Image Editing and Digital Animation

What is the main purpose of a layer mask in image-editing software?

  1. To permanently delete selected pixels from the layer
  2. To merge all layers into a single background
  3. To convert the document from RGB to CMYK
  4. To hide or reveal parts of a layer non-destructively Correct answer.

Explanation

A layer mask uses stored greyscale values to control visibility, so black hides and white reveals while the original pixels stay intact. Because the change is non-destructive, the mask can be edited or removed later without losing image data.

Question 34Graphics, Image Editing and Digital Animation

In animation, what does the term 'keyframe' refer to?

  1. A frame where the animator defines a significant change in a property Correct answer.
  2. The frame rate setting applied to the timeline
  3. A frame that is automatically generated between two drawn poses
  4. The final rendered frame of the whole sequence

Explanation

A keyframe marks a point where the animator sets a property such as position, scale or opacity, and the software fills the intervals between keyframes. Those filled intervals are the in-between frames, which are computed rather than drawn by hand.

Question 35Graphics, Image Editing and Digital Animation

Which file format supports lossless compression and also allows an alpha channel with smooth partial transparency?

  1. GIF
  2. PNG Correct answer.
  3. BMP
  4. JPEG

Explanation

PNG uses lossless compression and stores an alpha channel, so edges can fade smoothly against any background. GIF offers only binary transparency, while JPEG and standard BMP provide no alpha transparency at all.

Question 36Graphics, Image Editing and Digital Animation

A 600 by 400 pixel image is printed at 300 pixels per inch. What physical width will the print have?

  1. 3 inches
  2. 2 inches Correct answer.
  3. 1 inch
  4. 6 inches

Explanation

Print size equals pixel count divided by pixels per inch, so 600 pixels divided by 300 ppi gives 2 inches. The height would be 400 divided by 300, about 1.33 inches, confirming the same rule applies to both dimensions.

Question 37Graphics, Image Editing and Digital Animation

In a 2D animation timeline, what is the effect of setting a layer's interpolation to 'ease in and ease out'?

  1. The motion jumps instantly to the end value with no intermediate frames
  2. The motion reverses direction at the midpoint of the tween
  3. The motion starts slowly, speeds up in the middle and slows near the end Correct answer.
  4. The motion proceeds at a constant speed from start to finish

Explanation

Ease in and ease out adjusts the velocity curve so the change accelerates after the first keyframe and decelerates before the second. Constant speed is linear interpolation, which produces a mechanical look by comparison.

Question 38Graphics, Image Editing and Digital Animation

Why is a GIF often a poor choice for a photographic web banner?

  1. It cannot be displayed inside a web browser
  2. It always produces larger files than uncompressed BMP
  3. It is limited to 256 colours per frame and may show banding Correct answer.
  4. It cannot store more than one frame

Explanation

The GIF palette holds at most 256 colours, so smooth photographic gradients get mapped to a small set of tones and show visible banding. Photographic banners are therefore better served by JPEG or by formats with broader colour support.

Question 39Graphics, Image Editing and Digital Animation

An animator wants a bouncing ball to squash as it hits the ground and stretch as it rises. Which animation principle is being applied?

  1. Anticipation
  2. Squash and stretch Correct answer.
  3. Staging
  4. Follow through

Explanation

Squash and stretch deforms the object along its motion to convey weight, impact and elasticity while preserving its apparent volume. Anticipation prepares an action before it happens, and follow through continues motion after the main action ends.

Question 40Graphics, Image Editing and Digital Animation

A student converts a 24-bit RGB image to an 8-bit indexed palette. What is the most likely visible result?

  1. The image becomes a vector graphic
  2. The image gains additional colour detail
  3. The pixel dimensions double automatically
  4. Smooth gradients may show banding and dithering Correct answer.

Explanation

Reducing to an indexed palette limits the image to 256 colours, so gradual tonal transitions must be approximated, producing banding that dithering tries to disguise. Pixel dimensions and the raster nature of the image remain unchanged.

Question 41Graphics, Image Editing and Digital Animation

Which adjustment is most suitable for correcting a photograph whose shadows are too dark while the highlights are already well exposed?

  1. Apply a strong global contrast increase
  2. Increase overall brightness on the whole image
  3. Raise the shadow or blacks slider while leaving highlights unchanged Correct answer.
  4. Convert the image to greyscale

Explanation

A targeted shadow adjustment lifts only the darker tonal range, which recovers detail without pushing already-correct highlights toward clipping. A global brightness or contrast change would affect every tone, including the highlights.

Question 42Graphics, Image Editing and Digital Animation

What does the 'G' in the RGBA colour notation used by web and canvas graphics represent?

  1. Gradient position
  2. Green channel intensity Correct answer.
  3. Gamma correction value
  4. Greyscale luminance

Explanation

RGBA stands for red, green, blue and alpha, so G is the green channel intensity expressed on a 0 to 255 or 0 to 1 scale. The alpha value separately controls opacity, and gamma and gradients are unrelated concepts.

Question 43Graphics, Image Editing and Digital Animation

In a vector illustration, what happens to a path when its anchor points are moved while the handles stay fixed?

  1. The fill colour is automatically removed
  2. The path is converted into a bitmap
  3. The stroke width is reset to zero
  4. The path's curve shape changes while remaining editable Correct answer.

Explanation

Anchor points and their handles jointly define a Bezier path, so moving an anchor reshapes the curve while the object stays mathematically editable. Fill and stroke attributes are independent of anchor geometry.

Question 44Graphics, Image Editing and Digital Animation

A designer exports a print-ready PDF and is warned that the document contains RGB images. Why does this matter?

  1. RGB images always increase the file size beyond the limit
  2. The printer's CMYK workflow may reproduce the colours differently from the screen Correct answer.
  3. RGB images cannot be embedded in a PDF at all
  4. PDF does not support image data

Explanation

RGB is a screen-oriented additive space whose gamut differs from the subtractive CMYK gamut of printing presses, so unconverted images may shift in hue or saturation. Converting to CMYK with an appropriate profile keeps the printed result closer to expectation.

Question 45Graphics, Image Editing and Digital Animation

Which practice best preserves editability when assembling a composite image from several photographs?

  1. Applying destructive erasing to hide unwanted areas
  2. Keeping source layers intact and applying adjustments through masks and adjustment layers Correct answer.
  3. Flattening all layers after each adjustment
  4. Saving only a final JPEG copy

Explanation

Non-destructive workflows keep original pixels and store changes in masks and adjustment layers that can be revised later. Flattening, destructive erasing and saving only a final JPEG all discard the information needed for future edits.

Question 46Graphics, Image Editing and Digital Animation

An animator sets a symbol's position at frame 1 and frame 24 and applies a motion tween. What determines the intermediate positions?

  1. The animator must draw each intermediate pose by hand
  2. The software interpolates values between the two keyframes Correct answer.
  3. The frame rate alone determines the positions
  4. The symbol's registration point is randomised each frame

Explanation

A motion tween interpolates property values between keyframes, so intermediate positions are computed from the start and end values. Hand-drawing every pose describes traditional frame-by-frame animation rather than tweening.

Question 47Graphics, Image Editing and Digital Animation

A web page shows a photograph that looks correct on screen but appears too dark and dull in the printed brochure. Which explanation is most plausible?

  1. The image was prepared in RGB, whose bright saturated colours fall outside the CMYK gamut Correct answer.
  2. The image was prepared in CMYK and printed in RGB
  3. The image resolution was too high for the printer
  4. The printer applied lossless compression

Explanation

Many vivid RGB colours cannot be reproduced with CMYK inks, and naive conversion can leave the printed result darker and less saturated. Proofing with the printer's CMYK profile before printing reveals and compensates for these gamut shifts.

Question 48Graphics, Image Editing and Digital Animation

A designer needs a small file for a flat logo with few solid colours on a website. Which format choice is most efficient?

  1. A 24-bit uncompressed BMP
  2. A PNG-8 with a reduced palette Correct answer.
  3. A maximum-quality JPEG
  4. A 16-bit TIFF

Explanation

PNG-8 stores indexed colour losslessly and compresses well, which suits flat artwork with few tones and keeps edges crisp. Uncompressed BMP and 16-bit TIFF are large, and JPEG introduces artefacts around hard edges.

Question 49Graphics, Image Editing and Digital Animation

In a 12-frame-per-second animation, a ball moves 120 pixels across 12 frames with linear interpolation. How far does it move between frame 4 and frame 5?

  1. 12 pixels
  2. 10 pixels Correct answer.
  3. 5 pixels
  4. 120 pixels

Explanation

Linear interpolation spreads the total change evenly, so 120 pixels over 12 frames gives 10 pixels per frame interval. Every consecutive pair of frames therefore differs by the same amount.

Question 50Graphics, Image Editing and Digital Animation

A 3000 by 2000 pixel image is required to print at 300 ppi. Which statement about its maximum print size is correct?

  1. It prints 3 by 2 inches at 300 ppi
  2. It prints 30 by 20 inches at 300 ppi
  3. It prints 300 by 200 inches at 300 ppi
  4. It prints 10 by 6.67 inches at 300 ppi Correct answer.

Explanation

Dividing each pixel dimension by 300 ppi gives 10 inches by about 6.67 inches. The pixel count stays fixed, so increasing the print size would lower the effective resolution proportionally.