Most programming languges allow you to write __________ functions that return either True or False.

In order for logical logging to work, a logical database operation must have a logical inverse operation. Give an example of a database operation that has no inverse. Suggest a procedure involving logical logging that can handle this case.

What will be an ideal response?

_________ is a hybrid cryptosystem that combines some of the best available cryptographic algorithms and has become the open-source de facto standard for encryption and authentication of e-mail and file storage applications.

A. PGP B. DES C. AH D. ESP