Pass the CompTIA A+ 220-1202 Questions and answers with ExamsMirror

Comprehensive and Detailed Explanation From Exact Extract:

The correct answer isVNC (Virtual Network Computing). VNC is a graphical desktop-sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer. It is platform-independent and widely supported on Linux, which makes it ideal for providinginteractive remote support for a Linux-based operating system. It allows the technician not only to view the remote desktop session but also tocontrol it, fulfilling the need to see and interact with the user’s session.

A. VPN(Virtual Private Network) creates a secure tunnel to a network but doesnot provide desktop sharing or session controlby itself.

C. SSH(Secure Shell) provides secure command-line access to Unix/Linux systems but does not offergraphical desktop interaction, which is a requirement in this case.

D. RDP(Remote Desktop Protocol) is primarily a Microsoft protocol, and although it can be made to work on Linux, it isnot natively supported on legacy Linux systems, and thusless suitablethan VNC in this scenario.

CompTIA A+ 220-1102 Core 2 Objective Reference:

Objective 1.8 – Given a scenario, use features and tools of the operating system.

Under this objective, candidates are expected to be familiar with remote access technologies, includingRDP, SSH, and VNC, and understand their appropriate uses and limitations on different platforms such as Windows and Linux.

Comprehensive and Detailed Explanation From Exact Extract:

BitLocker is Microsoft’s full disk encryption technology built into Windows Pro and Enterprise editions. It encrypts the entire drive, protecting data if the device is lost or stolen. BitLocker can use TPM (Trusted Platform Module) and can be configured with PINs or USB keys for added security.

A. Active Directory is for centralized user and policy management in domains.

B. NTFS is the file system format and doesn't provide encryption by itself.

C. EFS (Encrypting File System) encrypts individual files or folders, not the entire drive.

Comprehensive and Detailed Explanation From Exact Extract:

To prevent external access, the technician should avoid exposing the surveillance system’s port to the public internet. Port mapping (also known as port forwarding) is the method used to control which internal devices and ports are accessible from the outside. By not configuring port forwarding for the device, external login attempts are effectively blocked.

B. Subnetting organizes IP addresses but doesn't directly restrict access.

C. A static IP ensures consistent addressing but does not secure access.

D. Content filtering is used to restrict web content, not to block access to a web interface.

Comprehensive and Detailed Explanation From Exact Extract:

When a spreadsheet becomes very large, opening and processing it requires more memory (RAM). If the system doesn't have sufficient memory, it may fail to load the file properly. Upgrading or increasing the available RAM can resolve performance and loading issues with very large files.

A. Restore points roll back system settings, not individual file content.

C. Defragmentation optimizes disk performance but won’t help with memory issues.

D. Network speed has no effect if the file is stored and opened locally.

Comprehensive and Detailed Explanation From Exact Extract:

Operating systems periodically reach a status known as "end of life" (EOL), at which point the developer (e.g., Microsoft, Apple) ceases to provide security updates, patches, or technical support. When this happens, the OS becomes vulnerable and non-compliant with security best practices, which is why organizations typically receive advance notifications from vendors or support teams.

A. Manufacturer support expiration only applies to hardware, not OS patching.

C. Security software may be upgraded or removed, but that does not affect patching the OS itself.

D. The release of a new version doesn’t automatically stop updates for the current version.

Comprehensive and Detailed Explanation From Exact Extract:

Content filtering allows administrators to block or allow access to websites based on categories (e.g., social media, adult content, streaming). On a SOHO (Small Office/Home Office) router, this is often built-in or available via DNS-level filtering, and is the most appropriate method for enforcing browsing policies without needing to touch each individual device.

A. Secure management access protects router admin interfaces but doesn’t control user browsing.

B. Group Policy Editor is a Windows tool, not used on routers.

D. A firewall can block specific IPs or ports, but it doesn't categorize web content.

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.”

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.”

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.

Comprehensive and Detailed Explanation From Exact Extract:

These symptoms strongly suggest malware activity—likely from the newly installed app. The first action should be torun a malware scanto detect and isolate malicious software.

FromQuentin Docter – CompTIA A+ Study Guide:

“Signs of malware infection include rapid battery drain and overheating. The first step should be a malware scan using trusted mobile antivirus apps.”