Answer:
1000 bytes
Explanation:
There is a new (confusing) definition that differentiates two views on the matter:
1 kB = kilobyte = 1000 bytes
1 KiB = kibibyte = 1024 bytes
In the old definition, 1 kB = 1024 (=2¹⁰) bytes.
So, you have to find out if whoever is asking this question wants the old-school answer or the new-school answer!
Also, use the correct casing on the letters (lower k, upper B, or Ki).
https://en.wikipedia.org/wiki/Kilobyte