Which of the following would be good reasons to run NAT? You need to connect to the Internet and your hosts don't have globally unique IP addresses. You change to a new ISP that requires you to renumber your network. You don't want any hosts connecting to the Internet. You require two intranets with duplicate addresses to merge.
Options: 1, 2 and 4, 2 and 4, 3 only, All of the above
Options: Capturing all of the data contained in various operational systems, Capturing a subset of the data contained in various operational systems, Capturing all of the data contained in various decision support systems, Capturing a subset of the data contained in various decision support systems
Which of the following is not true about modifying table columns?
Options: You can drop a column at any time., You can add a column at any time as long as it is a NULL column., You can increase the number of characters in character columns or the number of digits in numeric columns, You cannot increase or decrease the number of decimal places.