You can make permanent changes to a table's structure in either Datasheet view or Design view

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

1. Message authentication is a mechanism or service used to verify the integrity of a message. 2. The order in which the frame check sequence and encryption functions are performed is not critical for authentication. 3. The MAC does not provide a digital signature because both sender and receiver share the same key. 4. A recipient in possession of the secret key cannot generate an authentication code to verify the integrity of the message. 5. One means of forming a MAC is to combine a cryptographic hash function in some fashion with a secret key.

The try block is followed by one or more ____ blocks.

A. throw B. finally C. do D. catch