CompTia A+: Chapter 2 Flashcards
You are installing a new graphics adapter in a Windows 10 system. Which of the following expansion slots is designed for high speed, 3D graphics adapters?
PCIe [Although technically PCI could be used for graphics adapters, PCIe supports high speed, 3D graphic video cards. PCIe offers better performance than older graphics adapters. USB can stream video, but it is not used for attachment of internal graphics adapters. NVMe is an SSD communications interface.]
You need to install a new hard drive into a desktop computer. Which of the following is not one of the three major components of a hard drive disk system?
Drive Interface [ A conventional hard disk drive system consists of the hard disk and its often-integrated controller as well as a host adapter to gain access to the rest of the computer system. The drive interface is a common component of the controller and the host adapter.]
You install a new NIC for a user, and he asks what it does. Which of the following best characterizes the functions of this device?
Communications [It enables the computer to talk to other computers on a network. It does not provide multimedia, input/output, or storage capabilities.]
A client wants to ensure that their server does not lose power if their power supply fails. Which of the following best describes the type of power supply needed in this situation?
Redundant Power Supply [To protect against a power supply failure, use a redundant power supply, which is basically two PSU’s in one unit. More Wattage will not help if the power supply fails. There are no Voltage output selectors on PSU’s.]
A client is looking for a desktop storage technology that provides the fastest possible data transfers. Which technology should you recommend?
NVMe [ SATA 10000rmp and 15000rpm refer to the conventional hard drive spin rates, and SSDs will always be faster than hard drives.]
You are choosing an optical drive format for a client. Which optical drive format supports a data capacity of 25GB?
Blu-ray discs [A double-sided, single-layer DVD can store about 9.4GB, and a double-sided double-layer DVD can store about 17 GB.]
Which of the following best describes the concept of hot-swappable devices?
Devices that can be removed while the power of the system is still on. [ Warm swappable devices need to be stopped in the operating system before being removed. The term has nothing to do with the heat level of the device.]
Of the following voltage pairings, which one accurately represents the input and output, respectively, of power supplies and AC adapters?
AC in, DC out [Power supplies and AC adapters use standard wall outlets for input of AC voltage, which they convert to the DC voltages required by the components to which they supply power.]
What are the output voltages that have been commonly produced by PC power supplies over the years?
+3.3VDC, +5VDC, -5VDC, +12VDC, and -12 VDC [These are the voltages produced by PC power supplies from 110 VAC input]
You are installing a new power supply in a desktop computer. Which of the following statements about power supplies is true?
PC power accepts AC input and DC output [Europe requires that the voltage selector switch be set to a higher setting. SATA drives most often use a specific power connector that is not compatible with the MOLEX connector used by PATA drives. ATX motherboards can have a 20 or 24 pin connector but do not always need an adapter.]
You have been asked to install a new hard drive for a client. Which of the following is not a consideration when installing an internal storage card?
You need to install an external power source since the internal one is not capable of powering the hard drive [Today’s hard drives, regardless of rpm, have standard internal power connections. The other options are valid concerns when installing an internal drive.]
A client just bought a new digital camera for his photography business. Which of the following is specifically designed as an internal storage device for cameras?
SD Cards [ Memory cards such as SD cards were designed for devices such as cameras. Optical discs are larger and used mostly for laptops. Flash drives are USB. mSATA is a laptop expansion card technology.]
When installing multiple add-on cards of the same type, which type of cards might you need to bridge together to function as a single unit?
PCIe video cards [ PCIe video cards may be bridged together, enabling two cards to function as one system. Sounds cards and I/O expansion cards such as USB and eSATA cards do not have bridging capabilities]
You are purchasing a new video card for a desktop computer. For the best performance, which type of video card should you purchase?
PCIe x16 [ For a video card, the best standard currently available is PCIe, and the widest channel width is x16. There are no PCI x16 or PCI x128 slots, nor is there a PCIe x128 slot. AGP is an older video expansion standard that is now obsolete.]
Which of the following is NOT a consideration when purchasing power supplies?
You might find your case has a non-removable power supply. [ Personal computers do not have permanently installed power supplies. Like other electronic components, power supplies can and do fail on a regular basis. Permanently mounting a power supply to a chassis would be a disservice to the consumer. You should consider the cumulative power needs of your installed components, and you may have to obtain adapters and splitters if you don’t have enough or you have the wrong types of connectors coming from the power supply]
