Conferencing software (e.g., Zoom, Microsoft Teams, Webex) enables users to conduct meetings online using audio, video, and screen sharing.

“Conferencing software facilitates real-time communication and collaboration over the internet through audio and video.” — CompTIA ITF+ Applications and Software

Correct answer: D

The CompTIA troubleshooting methodology is clearly outlined:

" Once a theory of probable cause has been established, the next step is to test that theory. "

Testing confirms whether the identified potential cause is correct before proceeding with action planning, repairs, or documentation.

The requirement to change passwords every 60 days is a policy known as password expiration . It is part of enforcing secure authentication by limiting the amount of time a password is valid.

“Password expiration is a security measure that requires users to change their passwords after a specific period, such as every 60 or 90 days, to reduce the risk of compromised credentials being used over time.” — CompTIA ITF+ Official Guide

Password complexity refers to rules about what characters are required.

Password management refers to overall policies and tools for handling passwords.

Password privacy relates to confidentiality but not periodic resets.

Thus, the correct choice is C.

The CompTIA Tech+ Study Guide clearly defines:

“To talk to the hardware, operating systems use specialized programs called device drivers, or drivers for short. A driver tells the OS how to talk to the specific piece of hardware and how to use its features. If there is no driver for that OS, then the hardware will not be compatible with it.”

Hence, drivers are the software components that control and enable communication between the OS and hardware devices.

Verified Reference:

Chapter 4: Operating Systems — “Coordinating Users and Hardware” (pp. 208–209).

Fiber optic internet provides the fastest residential internet speeds due to its use of light for data transmission. The CompTIA ITF+ FC0-U71 Official Study Guide explains:

" Fiber-optic cabling provides very high-speed data transfer using light signals, with much greater bandwidth and lower latency compared to DSL, cable, or satellite. "

" DSL and cable are slower and often shared among users, while satellite suffers from high latency. "

RAM allows multiple applications to run simultaneously. Insufficient RAM causes performance drops:

“When several applications are open, the system relies heavily on RAM for temporary storage of active processes.”

Storage, motherboard, or NIC do not directly handle temporary application memory while multitasking.

A MAC (Media Access Control) address is a hardware address assigned to a network interface card. It follows a 48-bit hexadecimal format usually displayed as six pairs separated by colons or hyphens:

“MAC addresses typically appear as 00:50:09:2D:4D:94.”

192.68.10.24 is an IPv4 address, fe80:102d:cd62:5434:82ae is an IPv6 address, and 0x3476 is simply a hexadecimal number, not a MAC address.