The HTML5 ____________tag groups content by designating it as information appearing at the top of a page or section of a page.

When a cell formula is being edited, pressing the ________ key changes the selected cell reference from relative to absolute

Fill in the blank(s) with the appropriate word(s).

Remote control malware was found on a client device, and an unknown attacker was manipulating the network from afar. The attack resulted in the network switches reverting to flooding mode, thereby enabling the attacker to eavesdrop on a significant portion of network communications. After reviewing IDS and traffic logs, you determine that this was accomplished by an attack utility which generated a constant Ethernet frames with random source MAC addresses. What can be done to prevent this attack from occurring in the future?

A Restrict access to DHCP. B Use a static HOSTS file. C Use MAC limiting on the switch ports. D Implement an ARP monitor.