Which of the following statements about a riser card is true?
A. It is used to connect a computer in a network.
B. It is used to connect extra microprocessors.
C. It provides extra memory for expansion cards.
D. It is used to extend slots for expansion cards.
Riser card is a circuit board that is used to extend slots for expansion cards and provides the
ability to connect additional expansion cards to the computer. These cards are used with LPX
motherboards. With the introduction of ATX motherboards, riser cards are rarely used. In ATX
motherboards, the expansion cards connect directly to the computer motherboard instead of
using riser cards.
What is LPX?
LPX is a motherboard form or that is used in some desktop computers. In LPX motherboards,
expansion cards are inserted into a riser card that contains several slots. Unlike other common
form ors such as AT and ATX, the expansion cards in LPX are not vertical, but parallel to the
The LPX form or is designed for smaller cases, and usually it is used for connecting two or three
Which of the following devices is used for accessing the data on Secure Digital (SD) card, MMC
card, and CompactFlash (CF)?
A. E-book reader
B. Memory card reader
C. Smart card reader
D. Barcode reader
A memory card reader is a device, typically having a USB interface, for accessing the data on a
memory card such as a CompactFlash (CF),
Secure Digital (SD) or MultiMediaCard (MMC).
Answer option C is incorrect. Smart card readers are used to read smart cards. It is used as a
communications medium between the smart card and a host.
Answer option D is incorrect. A barcode reader (or barcode scanner) is an electronic device for
reading printed barcodes.
Answer option A is incorrect. There is no such device as e-book reader.
Which of the following can be used to accomplish authentication?
Each correct answer represents a complete solution. Choose all that apply.