Adobe After Effects Visual Effects and Compositing

Question 1

Which After Effects effect is most commonly used to remove a green or blue screen background?

Accepted Answer

Keylight (1.2)

Answer

Luma Matte

Answer

Extract

Answer

Linear Color Key

Question 2

What is a 'Track Matte' in After Effects?

Accepted Answer

A layer that controls the transparency of the layer directly below it

Answer

A motion tracking data file

Answer

A type of adjustment layer

Answer

A mask applied to an effects layer

Question 3

What does the 'Collapse Transformations' switch do for a pre-composed layer?

Accepted Answer

Passes the pre-comp's transformations and frame size through to the parent composition

Answer

Removes all transformations applied to the pre-comp layer

Answer

Collapses the pre-comp into a single flat image

Answer

Disables motion blur on the pre-comp layer

Question 4

Which blending mode makes black pixels transparent and white pixels fully opaque?

Accepted Answer

Screen

Answer

Multiply

Answer

Overlay

Answer

Hard Light

Question 5

What is a 'Pre-composition' (pre-comp) in After Effects?

Accepted Answer

A nested composition used as a single layer within another composition

Answer

A rough draft composition before final rendering

Answer

A composition exported at lower resolution for preview

Answer

A template composition saved for reuse

Question 6

Which After Effects feature allows you to apply an effect to all layers in a composition without pre-composing?

Accepted Answer

Adjustment Layer

Answer

Guide Layer

Answer

Null Object

Answer

Shape Layer