What is it called when you compare two documents in a word processor and display the changes between the two documents?

A DHCP enabled computer on the network has been unplugged from the network for a week. In the mean time, several other computers were added to the network. When plugging the computer back into the network the computer is unable to reach network resources. Which of the following is the MOST likely cause?

A. The IP address lease has expired on the DHCP server. B. The DHCP scope needs to be redefined. C. The DHCP pool limit has been reached. D. The DHCP server needs to be restarted

Which clause is used to filter non aggregate data?

a. SELECT b. FROM c. WHERE d. GROUP BY e. HAVING