CompTIA A+ CERTIFICATION EXAM REVIEW QUESTONS AND ANSWERS

CompTIA A+ CERTIFICATION EXAM REVIEW QUESTONS AND ANSWERS archive attribute - Answer-A file attribute set by the OS when a file is created or modified. Backup software often removes this attribute when backing up a file in order to mark it as a backed-up file. arithmetic logic unit - Answer-A component of a CPU that is responsible for all logical and mathematical operations in the system. aspect ratio - Answer-The proportion between an image's width and height. Traditional CRT monitors have an aspect ratio of 4:3. Widescreen displays have an aspect ratio of 16:9. asymmetrical digital subscriber line - Answer-A type of DSL service in which the download speed is higher than the upload speed. asynchronous transfer mode - Answer-A type of switched network used by phone companies. ATA Packet Interface - Answer-The protocol for connecting optical drives and tape drives to an ATA channel. attended installation - Answer-An installation of Windows that is not automated, where the user is required to pay attention throughout the entire process to provide information and to respond to messages. Also called a manual installation. ATV12V - Answer-A power supply standard that has both the 20-pin connector for the motherboard and a 4-pin 12 V connector. ATX power supply - Answer-A power supply form factor that pairs with an ATX motherboard and case. audio modem riser - Answer-A small expansion card introduced in the late 1990s that plugs into a special slot on a motherboard and uses the CPU to perform modem functions and sound functions. It is not plug and play compatible.