To help human readers understand why a method’s statements are there, good programmers insert explanatory ____ into their methods.

In the Venetian Blind schema design if a namespace is attached to the schema, only the root element needs to be qualified in the instance document.

Answer the following statement true (T) or false (F)

Which of the following does not occur when sending a message using a digital envelope?

(a) The message is encrypted using a symmetric secret key. (b) The secret key is encrypted using public-key encryption. (c) A courier is used to transmit the symmetric secret keys between parties. (d) All of the above occur when sending a message using a digital envelope.