Which of the following is the number of bits in a byte of data?
A byte consists of exactly 8 bits. Bits (binary digits) are the smallest unit of data, and eight of them grouped together form one byte, which is used to represent characters and numbers in digital systems.
''A byte is made up of 8 bits and is the standard unit of data used to represent information such as characters in computing.'' --- CompTIA ITF+ Fundamentals
Correct answe r: C
A user needs to reconfigure local storage on an OS. Which of the following should be used?
Disk management is the OS feature used to create, delete, format, or partition storage devices. It allows users to manage drives and volumes locally.
''Disk management tools are used to manage and configure storage devices, including creating and formatting partitions and volumes.'' --- CompTIA ITF+ Operating System Features
Correct answe r: D
A user attempts to log in to a website and receives a prompt to update their password. Which of the following is this an example of?
This scenario describes a policy where the system enforces password expiration, prompting users to update passwords after a defined period.
''Password expiration is a security policy that requires users to reset their passwords periodically---commonly 30, 60, or 90 days---to mitigate the risk of compromised credentials.'' --- CompTIA ITF+ Objectives
Password privacy refers to keeping the password confidential.
Password history restricts reuse of old passwords.
Password complexity enforces character rules (e.g., uppercase, numbers, symbols).
Correct answer: D
A user's device is experiencing slow processing performance when multiple applications are running at the same time. Which of the following components is causing this issue?
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 user is testing new speakers on a laptop, but the user does not hear any sounds. The speakers are plugged in and turned on, and the correct driver is updated. Which of the following would most likely cause the issue?
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