Hardware (7) Flashcards
Which RAM feature can detect and possibly fix errors within memory?
Parity
ECC
Non-ECC
ECC
If memory supports ECC, check bits are generated and stored with the data. If one of the eight memory bits is in error, ECC can correct the error
You have a client who needs a hot-swappable, nonvolatile, long-term storage technology that lets him conveniently carry data with him from one location to another in his pocket. Which technologies can you recommend? (Choose two)
USB flash drive
Hybrid SSD
PATA
SD
USB flash drive
SD
USB flash drives and SD cards are hot swappable. (In the case of USB, be sure that the flash drive does not contain key file system files needed for the computer to run!) Hybrid SSDs might or might not be hot swappable and are larger than USB and SD drives. PATA devices are generally not hot swappable
You have been asked to assemble 20 new desktop PCs for a client. When you look at the first motherboard, you see four memory slots. The one closest to the CPU is coloured blue. Then in order they are white, blue, and white. Which of the following are true? (Choose two)
This is a quad-channel motherboard
This is a dual-channel motherboard
For optimal performance, you should install RAM modules into the two slots closest to the CPU
For optimal performance, you should install RAM modules into the two blue slots
This is a dual-channel motherboard
For optimal performance, you should install RAM modules into the two blue slots
Dual-channel motherboards have two banks of two RAM slots. They are color coded such that the two slots of the same color belong to the same channel. Sometimes the like-colored slots are adjacent to each other, but other times they alternate. For optimal performance, fill one channel completely
One of your Windows 8 users has a file she wants to print as a PDF file, but the application she is using does not support printing to PDF, what would be her best option?
There is no way to print to PDF if the application does not support it
Use the Windows 8 native feature to print to PDF
Install a third-party app that installs support for printing to PDF
Install a third-party app that installs support for printing to PDF
Install an application that provides support for printing to .pdf. Then, when the user opens the print window, she can choose the PDF option
You have a computer running Windows 8. Every time you boot, the computer insists on trying to boot from the DVD-ROM drive. Where can you change the setting to have the system boot to the hard drive first?
BIOS
System manager
Device manager
BIOS
The boot sequence of a computer is changed in the BIOS settings
Which of the following types of connectors are generally found on the front or top panel of the computer? (Choose two)
Hard drive
Optical disk
Power button
USB
Power button
USB
Typical front- or top-panel connectors include USB, audio, power button, power light, drive activity lights, and the reset button. Hard drives and optical disk players generally connect to the motherboard
Your manager is excited because he just purchased a fast USB 3.0 external hard drive for his work team. He wants to set it in the middle of the cubicles and let everyone have access to it. Some of the cubicles are about 15 feet away from each other. What is the recommended maximum cable length for this type of device?
3 meters
5 meters
10 meters
3 meters
USB 3.0 has a cable length limitation of 3 meters. USB 2.0 cables can be up to 5 meters in length
A technician has just installed a duplexer on a laser printer. The duplexer was sold by the manufacturer and is compatible with the printer. However, the printer properties will not let anyone choose to print on both sides of the paper. What might resolve this issue?
Turning the printer off and on again
Upgrading the printer’s firmware
Stopping and restarting the spooler service
Upgrading the printer’s firmware
Printer firmware upgrades can offer newer features that are not available on previous versions
You have a desktop computer with three PCI expansion slots. What will happen when you mix cards of different speeds on the same motherboard?
The cards will operate at their original speeds
The cards will operate at the faster speed
The cards will operate at the slower speed
The cards will operate at the slower speed
PCI is a shared-bus topology, so mixing 33 MHz and 66 MHz adapters in a 66 MHz system will slow all adapters to 33 MHz
Which of the following statements accurately explains what happens during the exposing step in the laser printer printing process?
A laser reduces areas of the drum from a strong negative charge to a slight positive charge
A laser reduces areas of the drum from a strong negative charge to a slight negative charge
A laser increases areas of the drum from a slight negative charge to a strong negative charge
A laser reduces areas of the drum from a strong negative charge to a slight negative charge
In the exposing step, the image is written to the photosensitive imaging drum. Wherever the laser beam touches, the photosensitive drum’s charge is severely reduced from –600 VDC to a slight negative charge (around –100 VDC). As the drum rotates, a pattern of exposed areas is formed, representing the image to be printed
Which of the following is the defining characteristic of a passive cooling system for a CPU?
It uses water
It uses liquid nitrogen or helium
It does not require a fan or power
It does not require a fan or power
Passive cooling systems come in a variety of models, and some are very effective. The defining characteristic is that they do not use a fan or require a power source
You have an older laptop with a CD burner in it. What is the approximate capacity of the CDs you will be able to create with this device?
350 MB
700 MB
1.4 GB
700 MB
Compact discs have a capacity of approximately 700 MB. Other CD standards support capacities of 650 MB, 800 MB, and 900 MB
Which of the following system settings are configurable in the BIOS? (Choose two)
Date and time
Enabling and disabling services
Enabling and disabling devices
System cooling fan speeds
Date and time
Enabling and disabling devices
The BIOS configures many hardware components and settings, such as system date and time, boot sequence, enabling and disabling devices, clock speeds, virtualization support, and BIOS security
64-bit SODIMM modules come in which pin configurations? (Choose two)
184-pin
200-pin
204-pin
240-pin
200-pin
204-pin
64-bit SODIMMs come in 144-pin SDR, 200-pin DDR and DDR2, and 204-pin DDR3 varieties. DDR DIMMs have 184 pins, and DDR2 and DDR3 DIMMS have 240 pins
Which level of cache is typically the smallest and closest to the processor die in a computer?
L1
L2
L3
L1
The typical increasing order of capacity and distance from the processor die is L1 cache, L2 cache, L3 cache, RAM, and HDD/SSD. Currently, there is no L4 cache
