chap 1 Flashcards
- In which situation would an ESD strike potentially cause harm to the PC?
when replacing a mechanical hard drive with an M.2 SSD
when installing an additional display in a workplace cubicle
when using a grounded mat and working on a computer on an ungrounded workbench
when installing a dual-voltage power supply
Other case
when installing an additional display in a workplace cubicle
when replacing high voltage laser printer parts
while attaching speakers to a surround sound card
when installing a UPS
when installing RAM
15
- A person has started a new technical job. In which situation would ESD be an issue?
when installing a processor
when using a grounded mat and working on a computer on an ungrounded workbench
when installing a dual-voltage power supply
while exchanging one laptop AC adapter with one that is not from the original equipment manufacturer
Other case
when installing RAM
when installing an additional display in a workplace cubicle
when replacing high voltage laser printer parts
while attaching speakers to a surround sound card
11
- A technician is about to begin preventive maintenance on a company PC. In which situation would ESD be an issue?
when replacing a motherboard
while attaching speakers to a surround sound card
when using a grounded mat and working on a computer on an ungrounded workbench
when installing a dual-voltage power supply
1
- An instructor has given a student an assignment to assemble a PC. In which situation should the student be aware that ESD is an issue?
when installing RAM
when working in a corporate environment that has carpet installed under tower PCs
when using a grounded mat and working on a computer on an ungrounded workbench
when installing a dual-voltage power supply
Case 2:
when walking across a carpeted area and then touching a keyboard that is attached to a tower PC
when installing a UPS
when working in a corporate environment that has carpet installed under tower PCs
when replacing a mechanical hard drive with an M.2 SSD
Case 3:
when using a grounded mat and working on a computer on an ungrounded workbench
when working in a corporate environment that has carpet installed under tower PCs
when installing a processor
when walking across a carpeted area and then touching a keyboard that is attached to a tower PC
143
- What two motherboard components control the system boot operations? (Choose two.)
BIOS chip
UEFI chip
Northbridge chip
Southbridge chip
CPU
12
- A technician is upgrading an ATX motherboard with another ATX motherboard. Which component might be affected by this and need to be upgraded and bought as an additional purchase?
BIOS
chipset
CMOS battery
CPU
PCIe adapter
4
- A customer has requested that a PC be built that will support eSATA. Which component should be checked to be sure that this feature is supported?
CPU
chipset
hard disk
RAM module
2
- Which memory module used to hold instructions for booting a PC and loading the OS, but is still used on adapters even though the memory contents cannot be changed?
RAM
ROM
cache
main memory
2
- What is a characteristic of DDR SDRAM?
It transfers data twice per clock cycle compared to once per clock cycle for SDRAM.
DDR SDRAM modules have double the number of pins of SDRAM memory modules.
It is dynamic memory whereas SDRAM is static memory.
It operates at double the voltage of SDRAM memory.
1
- What are two safety hazards when dealing with laser printers? (Choose two.)
high voltage
hot components
heavy metals
proprietary power bricks
unwieldy card cages
12
- Which component requires a technician to install screws externally through the PC case?
RAM
CPU
motherboard
power supply
4
- A technician is installing an internal HDD. To which motherboard connector will the technician connect the data cable?
ATX
PCI
PWR_SW
SATA
4
- When a PC is being assembled, what component is connected to the motherboard with a SATA cable?
the optical drive
the network interface card
the video card
the power supply
1
- A technician is troubleshooting a computer that is experiencing hardware failure detected by the BIOS. What is one way this failure is indicated?
The computer automatically boots into Safe Mode and displays a warning on the screen.
The screen flashes with a red background and displays a warning message.
The computer emits a pattern of beeps indicating the failing device.
The computer returns an error message that indicates the I/O address of the failing device.
3
- Which three features can be configured in the BIOS settings to secure a computer? (Choose three.)
MAC filtering
drive encryption
TPM
file encryption
TKIP key
passwords
235
- What is the purpose of RAID adapters?
to allow older PCI technology expansion slots to be used
to provide enhanced audio and graphic capabilities
to connect multiple storage devices for redundancy or speed
to connect peripheral devices to a PC to improve performance
3
- When a new motherboard is being installed, between which two components must thermal compound be applied? (Choose two.)
CPU
RAM
chassis
heat sink
chipset
motherboard
14
- What is the purpose of a Safety Data Sheet?
to specify procedures for dealing with potentially hazardous materials
to specify procedures in designing and building common computer systems
to specify procedures for the operation of sensitive components and prevention of electrostatic discharge
to specify procedures in the use of humidity control and prevention of moisture damage
1
- Which negative environmental factor does cleaning the inside of a computer reduce?
dust
EMI
rust
ESD
1
- What is a recommended procedure to follow when cleaning computer components?
Remove the CPU before cleaning.
Blow compressed air on cooling fans so that they will spin when dust is being removed.
Use window cleaner on LCD screens.
Hold cans of compressed air upright while spraying.
4
- On the production floor, a furniture plant has laptops for process monitoring and reporting. The production floor environment is around 80 degrees Fahrenheit (27 degrees Celsius). The humidity level is fairly high around 70 percent. Fans are mounted in the ceiling for air circulation. Wood dust is prevalent. Which condition is most likely to adversely affect a laptop that is used in this environment?
the temperature
the humidity
the air flow
the dust
4
- After a technician tests a theory of probable causes, what two actions should the technician take if the testing did not identify an exact cause? (Choose two.)
Establish a new theory of probable causes.
Randomly replace components one at a time until the problem is solved.
Document each test tried that did not correct the problem.
Verify full system functionality.
Test all remaining possible causes starting with the most complex.
13
- What would happen if a PC that contains a power supply that does not automatically adjust for input voltage is set to 230 volts and attaches to an outlet in the United States?
The power supply would explode.
The PC would not turn on.
The PC would display an error code.
The PC would emit a series of beeps.
2
- Which type of network spans a single building or campus and provides services and applications to people within a common organizational structure?
PAN
WAN
LAN
MAN
3