Mastering Networking for CompTIA A+ 220-1001 Final Exam Elaboration *Q&A* (100% Correct) 2025/2026 |VERIFIED|
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Module
CompTIA
Institution
CompTIA
Mastering Networking for CompTIA A+
220-1001 Final Exam Elaboration *Q&A*
(100% Correct) 2025/2026 |VERIFIED|
What is the primary purpose of a network router?
To route traffic between different networks.
What is the function of a switch in a network?
To forward data packets within the s...
Mastering Networking for CompTIA A+
220-1001 Final Exam Elaboration *Q&A*
(100% Correct) 2025/2026 |VERIFIED|
What is the primary purpose of a network router?
To route traffic between different networks.
What is the function of a switch in a network?
To forward data packets within the same network based on MAC addresses.
What does the acronym DNS stand for, and what is its primary function?
Domain Name System, responsible for translating domain names into IP addresses.
What type of device is used to connect multiple devices on a network and operate at the data link layer?
A switch.
What is the difference between a hub and a switch in networking?
A hub broadcasts data to all devices, while a switch forwards data only to the intended device
based on MAC addresses.
What is an IP address and what is its purpose?
An IP address uniquely identifies a device on a network and allows it to communicate with other
devices.
What does DHCP stand for, and what does it do?
Dynamic Host Configuration Protocol, which automatically assigns IP addresses to devices on a
network.
What is the difference between IPv4 and IPv6?
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, IPv4 uses 32-bit addresses, while IPv6 uses 128-bit addresses, allowing for a larger number of
unique IP addresses.
What is a subnet mask and why is it important in networking?
A subnet mask determines the range of IP addresses within a network and helps route traffic
properly.
What is the role of a firewall in a network?
A firewall monitors and controls incoming and outgoing network traffic to protect against
unauthorized access.
What is the purpose of the OSI model in networking?
The OSI model provides a framework for understanding and designing network protocols, divided
into seven layers.
What is the maximum range of a Wi-Fi 802.11b network?
Approximately 100-150 feet indoors.
What is a VPN, and how does it enhance network security?
A Virtual Private Network encrypts data to provide a secure connection over the internet.
What is a MAC address, and why is it important?
A Media Access Control address is a unique identifier assigned to network interfaces for
communication on the data link layer.
What does the term "latency" refer to in a network?
Latency is the delay before a transfer of data begins following an instruction for its transfer.
What is the primary difference between TCP and UDP protocols?
TCP is connection-oriented and reliable, while UDP is connectionless and faster but less reliable.
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