What is APES? AP Environmental Science (APES) is a year-long course that is the equivalent to a one semester college level Environmental Science course. Students will be expected to take the AP Environmental Science test in May 2016.
RAID is basically a group of disks, usually with one or both characteristics of parity and striping. Parity is redundancy of your blocks of data on the disks; striping allows the individual drive speeds and feeds to add up, giving you more performance than a single disk could provide.
Security groups are a named collection of network access rules that provide Rackspace Public Cloud users the ability to specify the types of traffic that are allowed to pass through, to and from ports (Public/ServiceNet) on a Cloud server instance. A security group is a container for security group rules.