Page 1 of 171
CompTIA A+ 220-801 and 220-802
Authorized Cert Guide 3rd Edition by Mark
Edward Soper, David L. Prowse , Scott
Mueller Isbn No: 978-0789748508
||Complete A+ Guide
1. A technician is building a high-end gaming PC. Which
motherboard form factor provides the best expansion
capabilities with support for multiple video cards?
a) Mini-ITX
b) Micro-ATX
c) BTX
d) ATX
,Page 2 of 171
Answer: d) ATX
Rationale: Standard ATX (12" × 9.6") offers more PCIe slots
(4–7) than Micro-ATX or Mini-ITX, ideal for multi-GPU setups.
2. Which chipset component manages communication between
the CPU, RAM, and PCIe video cards?
a) Southbridge
b) I/O Controller Hub
c) Northbridge
d) Super I/O
Answer: c) Northbridge
Rationale: The Northbridge (Memory Controller Hub) handles
high-speed communication. Modern CPUs integrate it.
3. During POST, a computer emits three long beeps then stops.
Most likely issue?
a) Video card failure
b) Keyboard controller failure
,Page 3 of 171
c) Base memory error
d) CMOS battery failure
Answer: a) Video card failure
Rationale: Three long beeps often indicate a video
(EGA/VGA) error depending on BIOS vendor.
4. Where do you enable hardware virtualization for running
multiple VMs?
a) Windows Device Manager
b) BIOS/UEFI firmware
c) MSConfig boot options
d) Motherboard jumpers
Answer: b) BIOS/UEFI firmware
Rationale: Intel VT-x or AMD-V must be enabled in BIOS/UEFI
before the OS can use them.
5. Which CPU socket is designed for Intel Core i7 (LGA 2011
series)?
a) FM2
, Page 4 of 171
b) AM3+
c) LGA 1155
d) LGA 2011
Answer: d) LGA 2011
Rationale: LGA 2011 is for high-end Intel Core i7 (39xx) and
Xeon processors.
6. What is the most critical component to apply correctly when
installing a new CPU to prevent overheating?
a) Thermal paste
b) Case fan
c) CPU shim
d) Liquid cooling reservoir
Answer: a) Thermal paste
Rationale: Thermal paste fills microscopic gaps between CPU
IHS and heatsink for efficient heat transfer.
7. Primary function of BIOS?
a) Manage file system
CompTIA A+ 220-801 and 220-802
Authorized Cert Guide 3rd Edition by Mark
Edward Soper, David L. Prowse , Scott
Mueller Isbn No: 978-0789748508
||Complete A+ Guide
1. A technician is building a high-end gaming PC. Which
motherboard form factor provides the best expansion
capabilities with support for multiple video cards?
a) Mini-ITX
b) Micro-ATX
c) BTX
d) ATX
,Page 2 of 171
Answer: d) ATX
Rationale: Standard ATX (12" × 9.6") offers more PCIe slots
(4–7) than Micro-ATX or Mini-ITX, ideal for multi-GPU setups.
2. Which chipset component manages communication between
the CPU, RAM, and PCIe video cards?
a) Southbridge
b) I/O Controller Hub
c) Northbridge
d) Super I/O
Answer: c) Northbridge
Rationale: The Northbridge (Memory Controller Hub) handles
high-speed communication. Modern CPUs integrate it.
3. During POST, a computer emits three long beeps then stops.
Most likely issue?
a) Video card failure
b) Keyboard controller failure
,Page 3 of 171
c) Base memory error
d) CMOS battery failure
Answer: a) Video card failure
Rationale: Three long beeps often indicate a video
(EGA/VGA) error depending on BIOS vendor.
4. Where do you enable hardware virtualization for running
multiple VMs?
a) Windows Device Manager
b) BIOS/UEFI firmware
c) MSConfig boot options
d) Motherboard jumpers
Answer: b) BIOS/UEFI firmware
Rationale: Intel VT-x or AMD-V must be enabled in BIOS/UEFI
before the OS can use them.
5. Which CPU socket is designed for Intel Core i7 (LGA 2011
series)?
a) FM2
, Page 4 of 171
b) AM3+
c) LGA 1155
d) LGA 2011
Answer: d) LGA 2011
Rationale: LGA 2011 is for high-end Intel Core i7 (39xx) and
Xeon processors.
6. What is the most critical component to apply correctly when
installing a new CPU to prevent overheating?
a) Thermal paste
b) Case fan
c) CPU shim
d) Liquid cooling reservoir
Answer: a) Thermal paste
Rationale: Thermal paste fills microscopic gaps between CPU
IHS and heatsink for efficient heat transfer.
7. Primary function of BIOS?
a) Manage file system
