A(n) _____ device failure is one of the hardest things for a technician to diagnose

What property of a hash function means that collisions are not a security problem. That is, why can an attacker not capitalize on collisions and change the underlying plaintext to another form whose value collides with the hash value of the original plaintext?

What will be an ideal response?

String method __________ returns a String with uppercase letters.

a) Upper b) Uppercase c) ConvertToUpper d) ToUpper