All DOI numbers begin with ____ followed by a prefix of a unique combination of four or more digits, then a slash, and finally a suffix that is any alphanumeric combination that identifies the publisher.

Attacks that are launched from multiple zombie computers at the same time are called ________

A) Trojan horses B) distributed denial-of-service attacks (DDoS) C) worms D) script kiddies

Compute the interest factor for both tables.

Consider the relationship between customers who buy high-definition televi- sions and exercise machines as shown in Tables 6.19 and 6.20.