Comprehensive and Detailed Explanation From Exact Extract:
Multi-Factor Authentication (MFA) requires at least two different types of authentication factors:
* Something you know (e.g., password or PIN)
* Something you have (e.g., smartphone or hardware token)
* Something you are (e.g., fingerprint or facial recognition)
Option A, sending a code to the user's phone, is an example of "something you have" - a physical device that receives a one-time passcode. Combined with a password, this forms a proper MFA implementation.
B: Date of birth is another knowledge-based factor (like a password), not a second factor type.
C: Solving a math problem is not a recognized authentication factor.
D: A PIN is also "something you know" and does not count as a distinct MFA factor when paired with a password.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast common security measures and authentication technologies.
Study Guide Section: Authentication factors - password, biometrics, tokens, MFA

Screensaver lockshelp protect unattended workstations.
BIOS passwordsprevent unauthorized changes at startup or during boot.
FromQUENTIN DOCTER - COMPTIA A+ COMPLETE study GUIDE:
"Applying a BIOS password adds a pre-boot security layer. Screensaver locks help protect logged-in sessions during idle times."

The correct answer is A. Hashing, because hashing is specifically designed to verify file integrity and detect whether a file has been altered after its original creation or distribution. A hash is a fixed-length value generated by running a file through a hashing algorithm such as SHA-256 or SHA-1. Even a single-bit change in the file will produce a completely different hash value.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, hashing is commonly used to validate downloaded software by comparing the calculated hash of the downloaded file with the hash published by the vendor. If the two values match, the technician can be confident that the file has not been modified or tampered with.
The Travis Everett & Andrew Hutz - All-in-One Exam Guide emphasizes that hashing ensures integrity, not confidentiality or authentication. SSL certificates secure data in transit, but they do not validate files after download. Plug-ins and extensions provide additional browser functionality but have no role in verifying file integrity.
The Mike Meyers / Mark Soper Lab Manual reinforces that hashing is a standard best practice in secure software deployment and malware prevention. It allows technicians to confirm that files are exactly as the publisher intended.
Because the requirement is to confirm that files have not been modified, hashing is the correct and most reliable method, making A the correct answer.

Comprehensive and Detailed Explanation From Exact Extract:
Anincident reportsummarizes what happened during an outage, the timeline, the actions taken, and the resolution, which is exactly what management typically requests post-incident.
FromQuentin Docter - CompTIA A+ Complete Study Guide:
"Incident reports document the events of an IT issue or outage, including detection, response, and resolution.
They are crucial for post-incident review and management accountability."

The correct answers are C. GPT and E. NTFS. The GUID Partition Table (GPT) partitioning scheme is required because it supports more than four primary partitions and disks larger than 2TB. Since the SSD is
4TB and requires at least five primary partitions, MBR is not suitable.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, MBR is limited to four primary partitions and a maximum disk size of 2TB. GPT removes these limitations and is required for modern systems using UEFI firmware, including Windows 11.
The Travis Everett & Andrew Hutz - All-in-One Exam Guide explains that Windows installations on large disks should use GPT in combination with NTFS, which is the preferred Windows file system due to its support for large files, permissions, encryption, and reliability features.
The Mike Meyers / Mark Soper Lab Manual clarifies that FAT16 cannot support large volumes, XFS is a Linux file system, and APFS is designed for Apple systems. None of these are appropriate for a Windows 11 installation.
Because the requirement involves disk size, partition count, and Windows compatibility, the correct combination is GPT for partitioning and NTFS for the file system, making C and E the correct answers.