Which statement about hashing is TRUE?

  1. It can be reversed with a key
  2. It is one-way and gives a fixed-length output
  3. It needs a public key
  4. It is used only for large videos
Answer

B) It is one-way and gives a fixed-length output

A hash cannot be reversed and always has the same length (e.g. SHA-256 = 256 bits). SLO CS-11-A-04

Computer Science MCQ · More Unit 1: Computer Systems MCQs · Practise