Comprehensive and Detailed Explanation From Exact Extract:
The net use command in Windows is used to map (assign) a shared drive from the command line. The syntax typically looks like: net use X: \server\share where X is the drive letter and \server\share is the network path.
A). pathping tests network latency and packet loss.
B). nslookup is used for DNS troubleshooting.
D). tracert shows the route packets take to reach a destination - not for drive mapping.
Reference:
CompTIA A+ 220-1102 Objective 1.7: Given a scenario, troubleshoot common operating system problems.
Study Guide Section: Command-line tools - net use for drive mapping

Comprehensive and Detailed Explanation From Exact Extract:
Authenticator apps (e.g., Microsoft Authenticator, Google Authenticator, Duo) often support push notifications. When the user logs in, the app sends a push to their mobile device, prompting the user to approve or deny the authentication request - a common and user-friendly form of multi-factor authentication (MFA).
A). Phone call verification is a separate method involving voice-based confirmation.
C). Hardware tokens generate one-time codes but do not send push notifications.
D). SMS sends a text message with a code - again, no push mechanism.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast multi-factor authentication methods.
Study Guide Section: Authentication apps and push notification verification

Comprehensive and Detailed Explanation From Exact Extract:
Carbon fiber filamentcan producefine particles or fumesduring printing, which may be harmful when inhaled.
Wearing anair filter maskis essential to protect the respiratory system.
FromQuentin Docter - CompTIA A+ Complete Study Guide:
"When working with advanced materials like carbon fiber, always use appropriate personal protective equipment such as air filter masks to prevent inhalation of dangerous particles."

Comprehensive and Detailed Explanation From Exact Extract:
Facial recognition is a biometric authentication method that ties access to a unique physical feature of the user. Unlike passcodes or pattern locks-which can be easily shared-facial recognition provides a more secure and non-transferable form of access. It also enhances user convenience and is widely supported by modern smartphones.
A: Pattern locks can still be shared and are less secure.
C: Device encryption protects data but does not prevent screen access if a passcode is shared.
D: Multifactor authentication typically applies to app or account access, not basic phone unlocking.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast common security measures and authentication technologies.
Study Guide Section: Biometric screen lock technologies (e.g., facial recognition, fingerprint)

Comprehensive and Detailed Explanation From Exact Extract:
Managed Detection and Response (MDR)involves outsourcing security monitoring to a third-party that uses multiple tools and analytics.
FromTravis Everett - All-in-One Exam Guide:
"MDR providers handle threat detection and response using a combination of advanced tools, analytics, and expert personnel."