Comprehensive CompTIA A+ 220-901
Final Mock Exam *Q&A* (100% Correct)
2025/2026 |VERIFIED|
How many pins are found in a SATA data cable, which is used for connecting storage devices such as hard
drives and SSDs to the motherboard of a computer? 7
The USB 3.0 standard is capable of s...
Comprehensive CompTIA A+ 220-901
Final Mock Exam *Q&A* (100% Correct)
2025/2026 |VERIFIED|
How many pins are found in a SATA data cable, which is used for connecting storage devices such as hard
drives and SSDs to the motherboard of a computer? 7
The USB 3.0 standard is capable of supporting multiple devices simultaneously. How many devices can
this standard support through a single USB hub connection? 127
When using USB devices in a computer system, what is the standard voltage supplied by a typical USB
port to power connected peripherals, ensuring that devices like keyboards, mice, and external drives
function properly? 5V
Historically, what type of port was traditionally used to connect peripherals such as mice and keyboards
to a computer, providing a reliable connection for input devices before USB ports became more
common? PS/2
In terms of connection distance, what is the maximum allowable length of a USB 2.0 cable between a
device and a computer, ensuring that data can be transmitted without significant loss or signal
degradation? 5m
For Ethernet network connections, what is the standard maximum cable length that ensures the
network's performance does not degrade, allowing for optimal communication between devices across a
local area network (LAN)? 100m
Which category of Unshielded Twisted Pair (UTP) cabling is most commonly used in networking and
supports 1Gbps data transfer speeds, providing a reliable connection for both home and office
networks? Cat5e
1
, Which type of network cabling uses light signals for transmitting data, offering much faster speeds and
greater distance coverage than traditional copper cables, and is commonly used for high-speed, long-
distance communication? Fiber optic
The most commonly used protocol for data transmission on the internet and local area networks (LANs)
today is known for its reliability and efficiency. What is this protocol called? TCP/IP
When browsing the internet or accessing network resources by name, which network service is
responsible for translating domain names (like www.example.com) into their corresponding numerical IP
addresses, allowing devices to locate each other on the network? DNS or Domain Name System
For a network where multiple devices need to connect and communicate, which network service
dynamically assigns unique IP addresses to each device as it joins the network, ensuring smooth and
efficient operation? DHCP
In laptops, which component is most commonly replaced over time due to wear and tear, often due to
the natural degradation of battery cells, which results in a reduced ability to hold a charge?
Battery
What can users adjust in a portable computer to extend battery life, often by optimizing energy
consumption, dimming the display, and reducing power usage of idle components? Power options
Within a CPU, small temporary storage areas are used to store data that is being processed or moved.
What are these storage areas called, which allow for quick access to frequently used information?
Registers
The CPU contains a key component that performs essential mathematical and logical operations. What is
the name of this part of the CPU responsible for carrying out calculations and logical comparisons?
ALU or Arithmetic Logic Unit
To improve performance and enable multitasking, modern CPUs are often designed with multiple
processors, each capable of executing tasks independently. What are these individual processors within a
CPU called? Cores
2
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