Comprehensive and Detailed Explanation From Exact Extract:
In secure or isolated network segments, DHCP may be disabled to reduce the risk of unauthorized device connections or to maintain strict IP assignment control. In such cases, the help desk technician must manually configure IP settings (including IP address, subnet mask, gateway, and DNS servers). This ensures the workstation communicates properly within that segment.
A: DNS server restriction is unrelated to manual IP configuration.
B: Allow lists refer to traffic access, but manual IP assignment is due to lack of DHCP, not allow lists.
D: NAC servers control access but don't replace the need for IP addressing.
Reference:
CompTIA A+ 220-1102 Objective 1.7: Given a scenario, troubleshoot common operating system and network issues.
Study Guide Section: IP configuration and DHCP-related deployment scenarios

Comprehensive and Detailed Explanation From Exact Extract:
Mobile Device Management (MDM) is used to control, monitor, and enforce policies on mobile devices. It allows IT teams to restrict app installations, push approved apps, and monitor device compliance. Deploying MDM would prevent unauthorized applications, such as password crackers, from being installed on company- managed devices.
A: Group Policy is for managing Windows environments and not applicable to smartphones.
B: PAM (Privileged Access Management) controls administrative access, not app installation.
C: Anti-malware can help detect malicious apps but doesn't prevent their installation proactively.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast common security measures and tools.
Study Guide Section: Mobile Device Management (MDM) capabilities - app control, security enforcement

Comprehensive and Detailed Explanation From Exact Extract:
Standard Operating Procedures (SOPs) define the mandatory steps and expectations technicians must follow during support calls. This includes documentation standards such as logging user info, asset details, and issue descriptions in the ticketing system. Implementing SOPs ensures consistency and accountability.
A: SLAs define response/resolution times but not documentation practices.
B: Call categories organize types of issues but don't guide technician actions.
D: Knowledge base articles provide solutions to known problems but don't ensure proper ticket documentation.
Reference:
CompTIA A+ 220-1102 Objective 4.2: Summarize best practices associated with types of documentation and support systems information.
Study Guide Section: Documentation practices, SOPs, ticketing protocols

Comprehensive and Detailed Explanation From Exact Extract:
PXE (Preboot Execution Environment) allows workstations to boot over the network and download an OS image from a server. It is ideal for automating mass deployments using baseline images across many machines without the need for physical media.
A: An ISO is a disk image file but requires mounting or physical media.
B: Secure Boot is a security feature, not a method of deploying OS images.
C: USB requires manual installation and is not suitable for automated deployment at scale.
Reference:
CompTIA A+ 220-1102 Objective 1.4: Given a scenario, use appropriate Microsoft operating system installation methods.
Study Guide Section: Remote installation methods - PXE boot deployment

Comprehensive and Detailed Explanation From Exact Extract:
Multifactor authentication (MFA) is considered one of the most effective security measures for cloud environments. It requires users to verify their identity using two or more factors (e.g., password + phone app code), making it significantly harder for external attackers to gain access, even if the primary password is compromised.
B: Encryption is important for data protection but doesn't prevent unauthorized logins.
C: Backups protect against data loss but don't stop breaches.
D: Strong passwords are helpful but can still be phished or cracked - MFA adds a critical extra layer.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast authentication technologies.
Study Guide Section: Cloud security best practices - MFA and access control