Entry level credentials, the AAPC has the CPCA for apprentice and AHIMA has the CCA. Cost of the exam: AAPC charges $300 and you must be a member. AHIMA charges $299 for members, $399 for non-members so pretty much they are the same. What is different is that the number of exam attempts per fee.
The process of allowing root access on a phone and/or other device. The term rooting is most often associated with Android devices. It's often thought of as the Android equivalent of iOS Jailbreaking.
root. 1. the descending and subterranean part of a plant. 2. that portion of an organ, such as a tooth, hair, or nail, that is buried in the tissues, or by which it arises from another structure, or the part of a nerve that is adjacent to the center to which it is connected. Tooth anomalies with variations in root form. From Darby and Walsh, 1994.