1.) What is a statistical database? Why might it be necessary to deny certain overlapping queries from such databases?

1.) What is a statistical database? Why might it be necessary to deny certain overlapping queries from such databases?

2.) Digital signature does not provide protection against:

(a) Repudiation

(b) Re- play

(c) Eavesdropping

(d) Falsification of data.

Circle all correct answers and explain your selection.

3.) In the context of biometric security, what is the difference between verification and identification?