Which of the following allows an administrator to reference performance and configuration information if there is a problem on the network?

When a logic bomb is set to go off at a specific date or time, it is a ________ bomb

A) date B) time C) Trojan D) specified

Which of the following is NOT true when deciding when to use a surrogate key?

A) The advantage with a surrogate key is that it can help prevent some cascading changes from primary to foreign key errors. B) A surrogate key can increase the file size and require more joins. C) If the key never has a foreign key, you need a surrogate key. D) If you have a primary key with a foreign key that may need to be changed frequently or more than normal, a surrogate key should be considered.