allocation vs quota

allocation and quota both are nouns.

Word	Noun	Adjective	Verb	Adverb
allocation	Yes	No	No	No
quota	Yes	No	No	No

As nouns, quota is a hyponym of allocation; that is, quota is a word with a more specific, narrower meaning than allocation:

Other hyponyms of allocation include reallocation.

allocation (noun)	quota (noun)
the act of distributing by allotting or apportioning; distribution according to a plan	a limitation on imports
(computer science) the assignment of particular areas of a magnetic disk to particular data or instructions	a proportional share assigned to each participant
a share set aside for a specific purpose	a prescribed number