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This test is run by .
Note that your final mark will not be saved in the system.

B3 Issues relating to transmission of data Categorise

Target Level

Running Total

Attempt

1 of 1

Click on an item, then click on a category to place it. Or, drag and drop the item into the correct category. Organise all items before clicking 'Check'.

Choose whether each refers to lossy or lossless compression.

Lossy

Lossless

Unnecessary data is discarded

Drop in image or audio quality

Some compression to file size, but not as much

Lost data cannot be recovered again

PNG

JPEG

Fewer bits

The original quality can be restored

Data is not lost forever

Can produce very small files

TIFF

Used in zip files

MP3

Used in analogue phones too

This is your 1^st attempt! You get 1 marks for each one you get right first time. Good luck!

Pass Mark

70%