A periodic update that corrects problems in one version of a product is called a

A.
Hotfix

B.
Overhaul

C.
Service pack

D.
Security update

Explanation:
A service pack is a collection of updates and hotfixes that address a number of software issues, as well as new software features. It is released periodically by the
vendor.
Incorrect Answers:
A: A hotfix is a single-issue update that addresses a single software problem. It is released immediately in response to a newly discovered vulnerability.
B: A system overhaul is not an update. It is the creation of a new version of the system.
D: A security update is similar to a hotfix in that it addresses a single problem and is released immediately in response to a newly discovered vulnerability

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, Sixth Edition, Sybex, Indianapolis, 2014, p 220
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp 231-