Core A Test Flashcards
A technician asks you how to get a computer’s processor to run faster than it currently does. What is he trying to achieve?
a) Multicore support
b) Hyperthreading
c) Overclocking
d) Virtualization
Overclocking
Overclocking is when someone sets the speed of the processor to run faster than it was rated for. While overclocking can make a computer faster, it can also cause the processor to overheat, and it voids the warranty. Hyperthreading allows for a processor core to handle on a computer. Multicore means that the processor has more than one core it’s not a configurable option.
Exam Objective 3.5
You have just purchased a motherboard that has an LGA 1156 socket for an Intel Pentium processor. What type of memory modules will you most likely need for this motherboard?
a) DIP
b) SIMM
c) DIMM
d) SODIMM
DIMM
Pentium processors in a desktop always use DIMMs.
DIP and SIMMs are earlier forms of memory that have been obsolete for many years.
SODIMMs are used in laptops.
Exam Objective 3.3
Intel and AMD have integrated which of the following into their Atom and APU processor lines that had not been integrated before?
a) Math coprocessor
b) FSB
c) RAM controller
d) GPU
GPU
These CPUs integrate the graphics processing units (GPU).
The Core i7 before them integrated the memory controller, eliminating the FSB.
Math coprocessors have been integrated since the 80486DX.
Exam Objective 3.5
You are installing a new video card into a PCIe slot. What is the combined total throughput of a PCIe 2.0 x16 slot?
a) 500 MBps
b) 32 GBps
c) 16 GBps
d) 1 GBps
16 GBps
The PCIe 1.1 specification provided 250 MBps of throughput per lane per direction. With the 2.x versions of PCIe, this rate was doubled to 500 MBps. As a result, each v2.0 lane is capable of a combined 1 GBps. A x16 slot consits of 16 lanes, for a total bidirectional throughput of 16 GBps.
Exam Objectives 3.3
You are told by a technician over the phone that you need to bring replacement DDR SDRAM memory. What type of packaging is used for DDR SDRAM memory?
a) 240-pin DIMM
b) 168-pin DIMM
c) 224-pin DIMM
d) 184-pin DIMM
184-pin DIMM
DDR SDRAM is manufactured on a 184-pin DIMM.
DIMMs with 168 pins were used for SDR SDRAM
224-pin DIMMs do not exist.
DIMMs with 240 pins are used for DDR2 and DDR3 SDRAM.
Exam Objective 3.3
A client wants you to build a new PC for her, with a smaller case and lower power requirements. When selecting a motherboard, which form factor should you choose for a smaller size and lower power consumption?
a) ATX
b) ITX
c) Micro ATX
d) AT
ITX
The ITX motherboard family consists of smaller boards that fit in a standard or miniature cases and use less power than their larger counterparts.
ATX are “standard” sized motherboards in today’s world.
AT is a legacy form factor that was bigger than ATX.
Micro ATX is smaller than ATX but larger than ITX motherboards.
Exam Objective 3.5
Which of the following allows you to perform the most complete restart of the computer without removing power?
a) Start > Hibernate
b) Reset button
c) Power button
d) Start > Restart
Reset button
The reset button causes the computer to return to nearly the same point it is in when you power it on, but without the need for power cycling.
Using Restart in the Start menu does not reboot as deeply as the reset button.
Hibernation is a power state that completely removes power after saving the contents of RAM to the hard drive; pressing the power button is required to resume the session in the same manner as starting the computer after a complete shutdown.
The power button cannot be used as a method of restarting the system.
Exam Objective 3.5
You find out that a disgruntled ex-employee’s computer has a boot password that must be entered before the operating system is ever loaded. There is also a password preventing your access to the BIOS utility. Which of the following motherboard components can most likely be used to return the computer to a state that will allow you to boot the system without knowing the password?
a) Power reset connector
b) Cable header
c) Jumper
d) Toggle switch
Jumper
Most motherboards have a jumper or similar momentary closure mechanism that will allow you to clear the CMOS memory of any user settings and cause the BIOS to use factory defaults, including no user or supervisor passwords.
Exam Objective 3.5
You are assembling a new computer and are looking at new cooling systems. Which of the following cooling systems requires the use of a pump?
a) Heat sink
b) Heat sink plus fan
c) Liquid
d) Thermal paste
Liquid
Liquid cooling systems require a reservoir of liquid and a pump to circulate the liquid. It’s possible that the system could malfunction, causing a mess inside the computer. Thermal paste is used to adhere a heat sink to a processor.
Heat sinks and fans do not use pumps.
Exam Objective 3.5
You have just replaced a processor in a computer and now need to add a cooling mechanism. What should you use to attach the cooling system to the processor?
a) Thermal paste
b) Fan
c) Superglue
d) Heat sink
Thermal paste
Thermal paste is used to attach heat sinks and fans to processors.
A heat sink usually gets attached to the processor using thermal paste, and then the fan is attached to the heat sink.
Superglue would make it adhere, but id does not transfer heat properly; it would likely melt and cause a mess.
Exam Objective 3.5
Your Core i5 fan has a four-pin connector, but your motherboard only has a single three-pin header with the CPU_FAN label. Which of the following will be the easiest solution to get the necessary cooling for your CPU?
a) Leave the plug disconnected and use only the heat sink.
b) Buy a four-pin to three-pin adapter.
c) Plug the four-pin connector into the three-pin header.
d) Add an extra chassis fan.
Plug the four-pin connector into the three-pin header.
The easiest solution that works to cool your CPU is to connect the four-pin connector into the three-pin header. The missing pin allows you to control the speed of the fan. Without it, the fan will run at top speed, which is fine, albeit a little noisier.
There is no four-pin to three-pin power adapter.
The heat sink alone should not be relied upon for proper cooling of modern CPUs, and an extra chassis fan isn’t designed to specifically help cool the CPU.
Exam Objective 3.5
You need to install a new video card into a desktop computer. What type of expansion slot is preferred today for high-performance graphics adapters?
a) SATA
b) PCI
c) PCIe
d) AGP
PCIe
PCIe is the newest and fastest slot for video cards.
AGP and PCI are legacy technologies.
SATA is for hard drives.
Exam Objective 3.5
You are installing a new computer, and the user wants to use virtualization. Which two hardware components need to support virtual technology for this to work properly?
Each correct answer represents a complete solution. Choose two.
a) RAM
b) Motherboard
c) CPU
d) BIOS
CPU
BIOS
For virtualization to work, both the CPU and BIOS need to support it. The operating system does as well. Virtualization support may need to be manually enabled in the BIOS.
RAM does not need to support virtualization, and neither does the motherboard (except for the BIOS)
Exam Objective 3.5
You are replacing a motherboard in a computer that uses an AMD Ryzen 3 processor. Which CPU socket type do you need to ensure that the motherboard has?
a) AM3
b) AM2
c) LGA 1151
d) AM4
AM 4
The AMD Ryzen 3, Ryzen 5, and Ryzen 7 CPUs use Socket AM4.
AM2 and AM3 are used for older processors, such as the Phenom II, Athlon II, Sempron, and Opteron.
Any socket that starts with LGA in its socket name is for Intel processors.
Exam Objective 3.5
You have just found out that a new BIOS upgrade exists for your computer, and you obtain a copy to install it. Which of the following is most helpful when flashing the BIOS on a desktop computer system.
a) Internet connection
b) Uninterruptable power supply
c) DVD-ROM
d) Windows administrator password
Uninterruptable power supply
None of the option are required, but a UPS is by far the most helpful among the answers in that loss of power during this procedure can range from annoying to devastating.
Exam Objective 3.5
