1. What limits upgrade potential for the system processor?
The kind of CPU socket and chipset supplied on the motherboard.
2. How can CPU efficiency be improved?
Overclocking—setting the processor to run at a better clock velocity than it was
designed for.
Three. Why can cache enhance efficiency?
A CPU tends to repeat the identical routines and entry the identical knowledge over-andover
once more. If these routines are saved in quick cache RAM, they are often accessed
extra shortly than directions and knowledge saved in system reminiscence.
Four. What does SMP imply?
Symmetric Multiprocessing—putting in multiple CPU. This requires a
motherboard with a number of CPU sockets.
5. How is the warmth sink and fan meeting connected, and what issues can
happen releasing it?
The warmth sink is connected to the motherboard through a clip or push pins. There’ll
even be an influence connector for the fan. Clip mechanisms might be tough to
launch; push pins at the moment are extra widespread and simply require a half activate every
pin with a screwdriver to launch. One other problem can come up the place an excessive amount of
thermal paste has been utilized, inflicting the warmth sink to stay to the processor.
6. What should you examine when inserting a PGA CPU chip?
That pin 1 is aligned correctly and that the pins on the bundle are aligned with
the holes in the socket. In any other case, you danger damaging the pins when the ZIF
lever is lowered.
7. What is the distinction between a warmth sink and a warmth pipe?
A warmth sink makes use of strong steel fins to dissipate warmth via convection (usually
Helped by utilizing followers to maneuver air throughout the fins). A warmth pipe accommodates fluid
that evaporates in the space over the CPU, cools and condenses in a one other half
of the pipe, after which flows again to the space over the CPU to proceed the cycle.
5-Three
1. What benefits does UEFI have over BIOS?
UEFI helps 64-bit CPU operation and higher hardware Help at boot. UEFI
additionally permits for full GUI system utilities and mouse Help plus higher system
startup safety choices (akin to pre-OS boot authentication).
2. Identify three keys generally used to run a PC’s BIOS/UEFI system setup
program.
Esc, Del, F1, F2, F10.
Three. What broadly supported boot technique is lacking from the following listing? HDD,
FDD, Optical, USB.
Community/PXE (Pre-eXecution Setting)—acquiring boot data from a
specifically configured server over the community.
Four. The place must you launch a typical firmware upgrade utility—from system
setup or from Home windows?
If the possibility is on the market, it’s safer to run a firmware upgrade from the system
setup program because it reduces the danger of another course of interfering with the
replace.
5. If you wish to implement TPM system safety, what different BIOS function ought to
you allow?
A supervisor password to stop the TPM keys from being accessed or cleared.
6. True or false? Processor extensions akin to VT are set by the vendor
relying on the CPU mannequin and can’t be enabled or disabled by the consumer.
Principally false. A function akin to VT is typically disabled on some low-end
fashions, however whether it is accessible as a function of that mannequin, the consumer can select
whether or not it’s enabled or disabled.
7. A consumer’s pc was lately put in with a brand new optical drive. The consumer
now studies a “chassis” error message after the POST sequence. What would possibly
be the trigger?
Intrusion detection is enabled in the BIOS.
Eight. When you find yourself configuring BIOS safety, what’s the distinction between a
supervisor password and a consumer password?
The consumer password permits the boot sequence to proceed, whereas a supervisor
password controls entry to the firmware setup program.
9. What safety system permits system boot to be disabled if the pc is
reported stolen?
LoJack for Laptops (different monitoring software program suites can be found).
5-Four
1. How would you calculate the energy utilized by a element?
Multiply its voltage by the present it attracts (W=V*I).
2. What causes a fuse to blow—extreme voltage or extreme present?
Extra present.
Three. What is the significance of a PSU’s energy output when you find yourself designing a
customized construct PC?
It determines the variety of drives, enlargement playing cards, and peripherals that the
PC can Help (assuming the peripherals don’t have their very own energy
provides).
Four. Can you use a typical ATX12V PSU with a Mini-ITX motherboard?
Sure (assuming it matches in the case you will have chosen).
5. You’ve got an influence provide with an Eight-pin connector on it. What is that this for?
It provides energy to a PCI Specific graphics card.
6. You’re connecting a brand new PSU. The PSU has a sq. Four-pin P4 cable however there
isn’t any sq. Four-pin receptacle on the motherboard. Do you have to go away the
cable disconnected?
No; it would plug into an Eight-pin EPS12V receptacle close to the CPU. You must examine
the motherboard documentation for recommendation about which pins to plug the cable
into.
7. What setting must you examine earlier than putting in a PSU?
That the voltage selector is about to the right voltage (or if there is no such thing as a selector,
that the PSU is appropriate for the voltage utilized by the constructing energy).
Eight. One other technician changed the PSU on a PC. Later the identical day the PC’s proprietor
contacts you to say that the system has been displaying quite a few alerts about
excessive temperature.
What do you suppose is perhaps the trigger?
You would want to open the case to analyze the downside. Maybe when the
upgrade was carried out, considered one of the fan energy connectors was not connected
correctly. If the PSU cabling was not secured with cable ties, it might disrupt air
circulation inside the case, lowering the effectiveness of followers. There might be a fault
with the fan on the new PSU.
5-6
1. What trigger would possibly you believe you studied if a PC experiences intermittent lockups?
Assuming the trigger isn’t latest set up of defective software program or hardware,
then thermal or energy issues are most probably. Unfastened connections or defective
reminiscence or CPU are additionally potentialities.
2. How would possibly you diagnose a thermal downside?
Really feel if the system is scorching to the touch, examine temperature gauges, watch for cyclic
lockup/reboot issues.
Three. What measurement would you anticipate from a multimeter if a fuse is sweet?
Zero ohms.
Four. What would possibly cease a POST from executing?
Defective cabling and connections, poorly-seated chips, defective interfaces and
gadgets, logic errors, defective CPU, motherboard, or PSU.
5-9
1. Which element is prone to be a efficiency bottleneck on a workstation
used to edit digital motion pictures?
The disk subsystem is most probably to trigger the efficiency bottleneck. The recordsdata
might be too massive to be saved utterly in system reminiscence and so should be
streamed from the disk, which can have to be each massive and quick.
2. For what sort of workstation is a CPU with Four or extra cores significantly effectively
suited?
A number of cores profit software program that may make the most of multi-threading.
Examples embody virtualization software program and Speedy Software Growth
(RAD) instruments.
Three. You’re specifying a PC to behave as a house theater. What multimedia outputs
ought to it Help?
Encompass sound audio outputs to the speaker system and HDMI to the TV
display screen.
Four. Which components are most probably to make a PC used for gaming require high-end
cooling?
These PCs use not less than two heavyweight processors: the CPU and GPU. Additionally,
avid gamers are extra seemingly than most different customers to overclock parts to
enhance efficiency. Overclocking requires very efficient thermal
administration options.
5. On a skinny consumer, which element is extra necessary: NIC or HDD?
Skinny purchasers don’t want a lot everlasting storage in any respect—some could make do
with none mass storage. They don’t generate that a lot community visitors
both however that mentioned, the NIC is the extra necessary element right here.
6. Why would possibly high-spec parts (CPU, reminiscence, RAID) not be a good suggestion in
a house theater PC?
These gadgets must function as quietly as doable and utilizing high-spec
parts means warmth, warmth requires cooling, cooling normally means followers, and
followers imply noise.
5-10
1. A consumer wants to have the ability to entry the central worker knowledge repository to
run studies, however doesn’t want entry to any native functions used to
create, edit, and handle the worker knowledge. The worker knowledge is managed
on a server that may be accessed with a log in. What sort of consumer is finest in
this case?
Skinny consumer
Virtualization workstation
Thick consumer
2. June has lately been put in command of making updates to the Human
Useful resource worker advantages web site. She might be publishing a month-to-month
e-newsletter and posting company-wide bulletins, amongst different small
updates and modifications, regularly. All modifications to the web site should be
examined on numerous platforms and net browsers to confirm that the
modifications are right no matter the working system and browser. What
sort of consumer setup would you counsel for her?
Solutions will differ, however will most probably embody a virtualization workstation in order that
she will swap from completely different working programs and check any web site modifications
shortly.
Three. With a purpose to correctly Help the HR worker advantages web site, a brand new server
working consumer VMs has been put in in order that the surroundings that the
software requires might be strictly administered by IT employees. Present PCs will
be used to entry the Shopper VM surroundings that’s configured on the VM
Server. What must be current in any respect PCs that might be accessing this new
server and software?
☐ Appropriately configured VM Shopper.
☐ Quick community connection to server internet hosting the VM surroundings.
☐ Upgrade to video playing cards.
Four. True or False? The HR supervisor’s consumer pc should meet the
really helpful necessities to run Home windows 10 in order that she will entry and
use all of the HR-related functions utilized by the group. On this case,
the finest consumer possibility is a thick consumer.
True
5-11
1. Buyer 1 is utilizing a desktop PC to play house motion pictures and to arrange slide exhibits
to indicate his household their trip images and is having issue with the pc
freezing throughout the motion pictures. He’s trying for an answer that may enable him to retailer
and play his motion pictures seamlessly via a pc. He additionally desires his spouse to be
in a position to entry the photos and flicks from her laptop computer inside the home.
What sort of pc setup would you counsel for this buyer? What
particular questions would possibly you ask this buyer about extra element
wants?
Solutions could differ, however will most probably embody establishing a house server PC for
simple file sharing amongst the family computing gadgets and to offer extra
velocity to play motion pictures from the PC. Chances are you’ll ask if they’re in want of extra
space for storing and if they’re trying for redundancy via a RAID array in
the PC.
2. Buyer 2 is from a small actual property workplace who has lately employed a graphic
designer to provide informational pamphlets and different advertising and marketing supplies for
the company, akin to property drop sheets and round format designs. The workplace
supervisor has requested your organization to find out the hardware and software program
wants for the designer’s workstation in order that it may be ordered and arrange earlier than
their scheduled begin date in two weeks.
What hardware and software program necessities would you counsel for the
graphic designer’s workstation?
Solutions could differ, however will most probably embody a PC with a high-end, multicore
processor, a excessive finish video card, and the most RAM that the motherboard
can deal with. As well as, the motherboard ought to include a number of high-speed
ports for peripherals akin to exterior onerous drives or extra video playing cards. The
functions will most probably embody Adobe’s Inventive Cloud or related graphicdesign
software program.
324 | The Official CompTIA® A+® Core 1 and Core 2 Scholar Information (Exams 220-1001 and 220-1002)
Lesson 5: Putting in, Configuring, and Troubleshooting Inner System Parts | Subject E
LICENSED FOR USE ONLY BY: MICHAEL NGUYEN-IBANEZ ・ 23370021 ・ JAN 27 2022
Three. Buyer Three is trying to make the swap from a standard TV cable field and DVD
participant to a house theater PC, in order that she will stream Netflix and report exhibits and
motion pictures from her TV. She already bought a pc from an area house
leisure retailer however can’t determine why she can’t join the cable TV
wire into the pc.
What would you examine for first?
She must have a TV tuner card put in in the pc. The tuner card
offers the port to attach the cable from the supplier to the pc. You
would additionally need to confirm that the tuner card is appropriately configured, and that every one
machine drivers are put in and up-to-date.
