A protocol for carrier transmission in 802.11 networks. Unlike CSMA/CD (Carrier Sense Multiple Access/Collision Detect) which deals with transmissions after a collision has occurred, CSMA/CA acts to prevent collisions before they happen.

A Web page derived from multiple sources with a defined order of precedence where the definitions of any style element conflict. CSS gives more control over the appearance of a Web page to the page creator than to the browser designer or the viewer. 

CompTIA Advanced Security Practitioner (CASP) by CompTIA

Certified Associate in Software Quality (CASQ) by Quality Assurance Institute (QAI)

Certified Application Security Specialist (CASS) by Information Assurance Certification Review Board

Certified Associate in Software Testing (CAST) by Quality Assurance Institute (QAI)

Certified Allied Telesis Technician (CAT) Enterprise Solution by Allied Telesis

CATIA (computer aided three-dimensional interactive application) is a multi-platform computer-aided design (CAD)/computer-aided manufacturing (CAM)/computer-aided engineering (CAE) software suite developed by Dassault Systèmes. Written in the C++ programming language CATIA delivers the unique ability not only to model any product, but to do so in the context of its real-life behavior: design in the age of experience.

Community Access Television (CATV) commonly known as Cable TV, is one of the most common methods of transmitted television signals to a consumer's home, using radio frequency signals transmitted through coaxial cable. More recently, CATV can also be transmitted using optical fiber, which utilizes pulses of light to transmit a signal.

​​​​Certified Advanced Windows Forensic Examiner (CAWFE) by International Association of Computer Investigative Specialists

Certified Business Architect (CBA) by Pegasystems

Skill Level: Intermediate Status: ActiveFor individuals who work with business intelligence. The ICCP and the TDWI: The Data Warehousing Institute will issue a joint certificate fo this certification.

Certified Biometrics Professional (CBP) by IEEE

Certified Cloud Architect (CCA) by Cloud Institute

Citrix Certified Associate - Apps and Desktops (CCA-AD) by Citrix

Citrix Certified Associate - Networking (CCA-N) by Citrix