CompTIA A+ Certification Exam: Core 2 220-1202 Practice Questions

Answer : D

The correct answer is D. Enabling HTTPS-Only Mode, because HTTPS ensures that all communication between the browser and websites is encrypted using TLS (Transport Layer Security). This protects sensitive information such as usernames, passwords, and payment details from interception.

According to the Quentin Docter -- CompTIA A+ Complete Study Guide, HTTPS encrypts data in transit, preventing attackers from eavesdropping or modifying communications. HTTPS-only modes in modern browsers block or warn users when a site does not support secure connections.

The Travis Everett & Andrew Hutz -- All-in-One Exam Guide emphasizes that HTTPS is essential for protecting authentication credentials and financial information, especially on public or untrusted networks. Enforcing HTTPS-only connections ensures users cannot accidentally submit data over unencrypted HTTP.

The Mike Meyers / Mark Soper Lab Manual clarifies that disabling cookies or JavaScript may break website functionality but does not guarantee encryption. Pop-up blockers address nuisance behavior, not data security.

Because the objective is to encrypt browser communications and protect sensitive data, enabling HTTPS-Only Mode is the most effective and direct solution, making D the correct answer.

Answer : C

When a Windows service suddenly stops and then fails to start manually, one of the first places to confirm why it cannot start is the service logon context. A very common root cause is that the account configured on the service cannot authenticate anymore---often because the password changed or the account is locked. Quentin Docter notes that if the service fails due to misconfiguration, ''the most likely cause is the user account the service is configured to start with,'' and you should ensure ''the user account is not locked out.'' This aligns with standard service troubleshooting: check Event Viewer (Service Control Manager events) for login failures, then validate the service's Log On tab configuration and the account state.

The All-in-One guide also reinforces validating services via the Services console and correcting service settings when services fail to start.

Therefore, the best cause given the options is that the service account is locked out (C).

Answer : B

Single sign-on (SSO)allows users to authenticate once and gain access to multiple systems without re-entering credentials, which significantly enhances user convenience while maintaining security.

FromQuentin Docter -- CompTIA A+ Complete Study Guide:

''Single sign-on streamlines authentication by allowing users to log in once and access all authorized resources, reducing credential fatigue and improving security.''

Answer : C

With integrated graphics, ''VRAM'' is often not dedicated memory on a discrete card---graphics may instead borrow system RAM. Quentin Docter explains this directly: if the video card is built into the motherboard, it ''likely won't have its own memory but will share system memory,'' meaning the total system RAM is split between the OS and video usage. Docter then answers the key ''where do I change this?'' question: ''Shared

memory is configured in the system BIOS/UEFI,'' and some BIOS/UEFI setups allow you to set aside a specific amount (example given: 512 MB) for video memory.

That is exactly why the machine can have plenty of DRAM yet fail a VRAM check: the BIOS/UEFI allocation for integrated graphics may be set too low. Adjusting BIOS/UEFI settings to reserve more memory for the integrated GPU is the most direct way to attempt meeting a VRAM requirement (when supported). Device Manager and System Configuration won't change reserved video memory allocation, and ''Virtual RAM'' (paging) is unrelated to VRAM. Therefore, BIOS options is correct.

Answer : A

Extra icons in the system tray after an update often indicate new background apps loading at startup, increasing boot time. The Mike Meyers Lab Manual explains that ''autostarting programs will slow down your system,'' and Windows provides control through Task Manager's Startup tab to enable/disable startup programs---specifically calling this out as useful ''especially if Windows is slow to load.'' The All-in-One Exam Guide gives the same practical step: open Task Manager's Startup tab and ''review the enabled applications for any you don't need,'' then disable unnecessary ones to regain speed.

Importantly, the All-in-One answer guidance explicitly notes that disabling unnecessary startup programs is the least disruptive first action: ''Andre's best option would be to disable unnecessary startup programs... A system restore might help... but it'll be much slower and more disruptive.''

Uninstalling the update or restoring the system are more disruptive and should come later if simpler optimization fails. Antivirus scanning can be appropriate if no obvious cause exists, but the clear clue here is new startup items (system tray icons).

Answer : A

The correct answer is A. Use a virtual machine to emulate an older OS, because virtualization is the most reliable method for running legacy applications that are incompatible with modern operating systems or hardware. When a new computer does not meet an application's requirements---such as OS version, driver support, or system libraries---the issue is typically software compatibility, not system performance.

According to the Quentin Docter -- CompTIA A+ Complete Study Guide, virtualization allows technicians to install an older operating system inside a virtual machine (VM) while still using modern hardware. This approach isolates the legacy application in a controlled environment that exactly matches its original requirements, without compromising the security or stability of the host OS.

The Travis Everett & Andrew Hutz -- All-in-One Exam Guide explains that virtual machines are a preferred solution when organizations must maintain access to older business-critical software that cannot be updated. Running installers in Safe Mode or increasing swap space does not resolve OS-level incompatibility issues.

The Mike Meyers / Mark Soper Lab Manual further reinforces that compatibility toolkits can help with minor application issues, but they cannot fully emulate missing OS components or deprecated system calls. Virtualization provides complete compatibility by recreating the expected environment.

Therefore, using a virtual machine with an older OS is the most effective and exam-correct solution.

Answer : D

This is likely arogue antivirusor scareware tactic. The user shouldnot click 'OK'and instead check Windows Security (or third-party antivirus) status and ensure real-time protection is enabled.

FromMark Soper -- Mike Meyers' Lab Manual:

''Users should verify security center settings if receiving suspicious pop-ups. Clicking unknown software updates can install malware. It's safer to validate protection through legitimate system tools.''