pdated- CompTia A+ (220-1001)
Certification- Correctly Solved Exam
Question and Answers [100% Correct]
2025/2026
What is the maximum transfer speed of USB 3.1 Gen 2?
10 Gbps
5 Gbps
480 Mbps
20 Gbps
Which type of device uses PoE (Power over Ethernet) to receive both data ...
Updated- CompTia A+ (220-1001)
Certification- Correctly Solved Exam
Question and Answers [100% Correct]
2025/2026
What is the maximum transfer speed of USB 3.1 Gen 2?
10 Gbps
5 Gbps
480 Mbps
20 Gbps
Which type of device uses PoE (Power over Ethernet) to receive both data and power through a single
Ethernet cable?
IP Camera
Laptop
USB Hub
Hard Drive
What technology enables a computer to use storage over a network as if it were a local drive?
Network Attached Storage (NAS)
SAN (Storage Area Network)
iSCSI (Internet Small Computer Systems Interface)
RAID
When connecting to a secure wireless network, which protocol would provide the strongest encryption?
WEP
WPA
WPA2
1
,What is the function of the power supply in a computer?
The power supply provides electrical power to the internal components of the computer,
converting AC power from the wall outlet into DC power used by the system.
Explain the difference between SSD and HDD.
SSD (Solid State Drive) uses flash memory to store data, providing faster read/write speeds and
durability, while HDD (Hard Disk Drive) uses spinning magnetic disks and offers larger storage capacities
at a lower cost but slower performance.
What is the purpose of a motherboard in a computer system?
The motherboard connects all the computer's components, allowing them to communicate with
each other, and houses the CPU, memory, and essential expansion slots.
Describe the role of RAM in a computer.
RAM (Random Access Memory) temporarily stores data and instructions that the CPU needs to
access quickly, improving system performance during active processes.
What is the difference between USB 2.0 and USB 3.0?
USB 3.0 offers faster data transfer rates (up to 5 Gbps) compared to USB 2.0 (up to 480 Mbps),
and it is also capable of providing more power to connected devices.
What is an IP address and what is its role in a network?
An IP address uniquely identifies a device on a network, enabling it to communicate with other
devices by routing data to and from the correct location.
What is a typical use case for the HDMI port on a computer?
The HDMI port is used to transmit high-definition video and audio from the computer to an
external display or monitor, such as a television or projector.
What does POST stand for, and why is it important?
2
, POST stands for Power-On Self-Test, and it is a diagnostic process that occurs when a computer is
powered on, ensuring that critical hardware components are functioning correctly before the operating
system loads.
What is the difference between a 32-bit and a 64-bit operating system?
A 64-bit operating system can handle more memory (RAM) and process data more efficiently
than a 32-bit operating system, which is limited to addressing smaller amounts of memory.
How do you troubleshoot a computer that is not booting?
Troubleshooting steps may include checking the power supply, ensuring all cables and
connections are secure, performing a hardware diagnostic test, and attempting to boot from a recovery
disk.
What is a device driver, and why is it important?
A device driver is software that allows the operating system to communicate with hardware
components. Without the correct drivers, hardware devices may not function properly.
What is the function of a GPU in a computer?
The GPU (Graphics Processing Unit) is responsible for rendering graphics and handling video
output, offloading graphical processing tasks from the CPU to improve overall performance, especially in
gaming and multimedia applications.
What is the difference between dynamic and static IP addresses?
A dynamic IP address is automatically assigned by a DHCP server and can change periodically,
while a static IP address is manually configured and remains fixed.
Explain the purpose of a router in a home network.
A router connects multiple devices in a local network to the internet, assigning IP addresses and
directing traffic between the internal network and external networks.
What is RAID, and why is it used?
3
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