CompTIA A+® Certification All-In-One For Dummies®, 2nd Edition

4.6. Answers

1. B. The motherboard will include I/O ports or connectors for a variety of devices, but will not typically include the devices themselves. It will include the ATA controller and also a connector to attach the ATA drive, but not the drive itself. The same would be true of USB drives; the motherboard will include the controller and connector for the USB bus but not the actual device. See "System boards".

2. B. RAM memory is volatile, or nonpermanent, because it loses its contents when power is turned off on the computer. Review "Memory".

3. B, D. Power supplies have leads that supply 3.3V, 5V, or 12V. Check out "Power supply".

4. C. Processors carry out instructions that they receive from the operating system. Peruse "Processor/CPU".

5. D. The normal measurement for RAM is nanoseconds, or billionths of a second. Take a look at "Memory".

6. B, D. Hard drive architectures used with computers are IDE (or ATA), Serial ATA (SATA), SCSI, and Serial Attached SCSI (SAS). Peek at "Storage devices".

7. B. Super Video Graphics Array (SVGA) is the current graphics standard that monitors follow. Look over "Monitor".

8. A. Modems are serial devices, and as such are attached to the serial port. Study "Modem".

9. A, C. Firmware consists of programming code or software that is contained within a hardware component such as a ROM chip. Refer to "Firmware and chipsets".

10. A. BIOS contains the programs that allow the POST to take place. The BIOS is stored on a ROM or an EPROM. See "BIOS".

11. C. Central processing unit. Review ...