Comptia A+ 220-1101
Which of the following is required to take advantage of the performance benefits offered by the multi-
channel memory architecture? ANS: Installing modules in appropriate memory slots (slots of matching
color) on the motherboard, Installing memory modules of matching types, Installing memory modules of
the same capacity, Installing memory modules of matching speeds
What is the peak transfer rate of a DDR3-1600 module? ANS: 12800 MB/s
The term "Synchronous Dynamic Random-Access Memory (SDRAM)" encompasses a broad range of
DRAM modules that rely on a signal sent by the system clock in order to synchronize the memory
operation with other internal PC components. ANS: True
Which memory type can provide a CPU with the fastest access to frequently used data? ANS: Multi-level
cache
Which of the following are characteristics of Dynamic Random-Access Memory (DRAM)? ANS: Volatile
storage media type, Widely used as system's primary storage media (regular RAM modules installed in
memory slots on the motherboard), Slower than Static Random-Access Memory (SRAM), Less expensive
in comparison to Static Random-Access Memory (SRAM)
Which two types of memory packaging are used chiefly in portable computing devices? ANS:
MicroDIMM and SODIMM
Which type of memory is implemented on 288-pin DIMMs? ANS: DDR4 SDRAM and DDR5 SDRAM
Which CPU technology places the pins on the motherboard instead of the chip? ANS: LGA
A motherboard with color-coded memory slots provides support for multi-channel memory
architecture. ANS: True
,What kind of memory modules include registers between the system's memory controller and the
module's memory chips, registers that communicate in series with the memory controller and in parallel
with the memory chips, easing the electrical strain on the memory controller? ANS: Buffered
How many contact pins are used in SODIMM DDR4 SDRAM modules? ANS: 260
Which of the following is the industry name of DDR3-1333 modules ANS: PC3-10600
DDR4-2666 is also known as ANS: PC4-21300
A Small Outline Dual In-Line Memory Module (SODIMM) is a more compact type of computer memory
designed for desktop PCs ANS: False
What is the peak transfer rate of a DDR4-3200 module? ANS: 25600 MB/s
Which of the following terms refers to upgrading the firmware that the BIOS comprises? ANS: Flashing
Despite being smaller and less capable than SSDs, which of the following flash-memory formats can be
used as a built-in storage solution? ANS: eMMC
What is the primary difference between a conventional hard drive and a solid-state drive (SSD)? ANS:
The SSD has no moving parts.
Which of the following is an equivalent term to allocation units, as they relate to hard drive technology?
ANS: Cluster
How many pins do an ATX12V 2.0 power adapter have for the motherboard connector? ANS: 24
, Which of the following is an output voltage of a computer's power supply? ANS: -12VDC
Which of the following technologies requires a minimum of four hard drives? ANS: RAID 10
What is the capacity of a single layer of DVD-based optical media? ANS: 4.7GB
Which RAID implementation produces a non-fault tolerant striped set that allows multiple physical disks
to be treated as a single volume ANS: 0
You have a motherboard with integrated video, and the video fails. You install a video add-on card.
Which of the following statements are the most accurate? ANS: For the card to work properly, you
might need to disable the integrated video in the BIOS, The add-on card will be detected automatically
and function properly if it's PCIe.
What are the output voltages that have been commonly produced by PC power supplies over the years?
ANS: +12VDC, -12VDC, +3.3VDC, -5VDC, +5VDC
Which of the following are characteristics of the type of RAM most commonly used as the main system
memory in desktop PCs? ANS: Dynamic RAM and Non-ECC memory
In the context of computing devices, "overclocking" is a way to increase the performance of a device
(e.g. a CPU, GPU, RAM, or motherboard) by running it at a higher speed than the rate tested and
approved by the device manufacturer. ANS: True
A type of technology that splits a single CPU core into two virtual cores that can be used simultaneously
by an OS is called: ANS: Hyper-threading
A CPU design based on an instruction set that tries to improve speed by utilizing relatively few simple
instructions is referred to as: ANS: RISC
Which of the following is required to take advantage of the performance benefits offered by the multi-
channel memory architecture? ANS: Installing modules in appropriate memory slots (slots of matching
color) on the motherboard, Installing memory modules of matching types, Installing memory modules of
the same capacity, Installing memory modules of matching speeds
What is the peak transfer rate of a DDR3-1600 module? ANS: 12800 MB/s
The term "Synchronous Dynamic Random-Access Memory (SDRAM)" encompasses a broad range of
DRAM modules that rely on a signal sent by the system clock in order to synchronize the memory
operation with other internal PC components. ANS: True
Which memory type can provide a CPU with the fastest access to frequently used data? ANS: Multi-level
cache
Which of the following are characteristics of Dynamic Random-Access Memory (DRAM)? ANS: Volatile
storage media type, Widely used as system's primary storage media (regular RAM modules installed in
memory slots on the motherboard), Slower than Static Random-Access Memory (SRAM), Less expensive
in comparison to Static Random-Access Memory (SRAM)
Which two types of memory packaging are used chiefly in portable computing devices? ANS:
MicroDIMM and SODIMM
Which type of memory is implemented on 288-pin DIMMs? ANS: DDR4 SDRAM and DDR5 SDRAM
Which CPU technology places the pins on the motherboard instead of the chip? ANS: LGA
A motherboard with color-coded memory slots provides support for multi-channel memory
architecture. ANS: True
,What kind of memory modules include registers between the system's memory controller and the
module's memory chips, registers that communicate in series with the memory controller and in parallel
with the memory chips, easing the electrical strain on the memory controller? ANS: Buffered
How many contact pins are used in SODIMM DDR4 SDRAM modules? ANS: 260
Which of the following is the industry name of DDR3-1333 modules ANS: PC3-10600
DDR4-2666 is also known as ANS: PC4-21300
A Small Outline Dual In-Line Memory Module (SODIMM) is a more compact type of computer memory
designed for desktop PCs ANS: False
What is the peak transfer rate of a DDR4-3200 module? ANS: 25600 MB/s
Which of the following terms refers to upgrading the firmware that the BIOS comprises? ANS: Flashing
Despite being smaller and less capable than SSDs, which of the following flash-memory formats can be
used as a built-in storage solution? ANS: eMMC
What is the primary difference between a conventional hard drive and a solid-state drive (SSD)? ANS:
The SSD has no moving parts.
Which of the following is an equivalent term to allocation units, as they relate to hard drive technology?
ANS: Cluster
How many pins do an ATX12V 2.0 power adapter have for the motherboard connector? ANS: 24
, Which of the following is an output voltage of a computer's power supply? ANS: -12VDC
Which of the following technologies requires a minimum of four hard drives? ANS: RAID 10
What is the capacity of a single layer of DVD-based optical media? ANS: 4.7GB
Which RAID implementation produces a non-fault tolerant striped set that allows multiple physical disks
to be treated as a single volume ANS: 0
You have a motherboard with integrated video, and the video fails. You install a video add-on card.
Which of the following statements are the most accurate? ANS: For the card to work properly, you
might need to disable the integrated video in the BIOS, The add-on card will be detected automatically
and function properly if it's PCIe.
What are the output voltages that have been commonly produced by PC power supplies over the years?
ANS: +12VDC, -12VDC, +3.3VDC, -5VDC, +5VDC
Which of the following are characteristics of the type of RAM most commonly used as the main system
memory in desktop PCs? ANS: Dynamic RAM and Non-ECC memory
In the context of computing devices, "overclocking" is a way to increase the performance of a device
(e.g. a CPU, GPU, RAM, or motherboard) by running it at a higher speed than the rate tested and
approved by the device manufacturer. ANS: True
A type of technology that splits a single CPU core into two virtual cores that can be used simultaneously
by an OS is called: ANS: Hyper-threading
A CPU design based on an instruction set that tries to improve speed by utilizing relatively few simple
instructions is referred to as: ANS: RISC
