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

Comprehensive and Detailed Explanation From Exact Extract:

To ensure the authenticity of a downloaded application, the most reliable method is to verify the file’s hash (e.g., SHA256, MD5) against the value provided by the legitimate vendor. If the hash values match, the file has not been altered or tampered with. This verification confirms the integrity and authenticity of the executable.

B. Process IDs are dynamic and not unique to specific software.

C. Running in safe mode doesn’t validate legitimacy—it only runs the app in a minimal environment.

D. File names can be spoofed; matching the name does not prove authenticity.

Comprehensive and Detailed Explanation From Exact Extract:

Group Policyis the standard administrative tool for setting user permissions across domain-joined systems.

FromQUENTIN DOCTER – COMPLETE Study Guide:

“Use Group Policy to enforce user rights, including disabling guest account access on domain computers.”

The correct answer is C. The default gateway is not set , and this is clearly indicated by the ipconfig output showing the Default Gateway: 0.0.0.0 . In TCP/IP networking, the default gateway is the router address that allows a workstation to communicate with networks outside its local subnet , including the internet. Without a valid default gateway, a device can only communicate with other devices on the same local network.

According to the Quentin Docter – CompTIA A+ Complete Study Guide , a missing or incorrect default gateway is one of the most common causes of a system being unable to access external resources. The guide explains that when a destination IP address is outside the local subnet, the workstation forwards the traffic to the default gateway. If no gateway is defined, the traffic has nowhere to go and is dropped.

The Travis Everett & Andrew Hutz – CompTIA A+ All-in-One Exam Guide reinforces that an IP address such as 10.203.10.22 with a subnet mask of 255.255.255.0 is valid for internal communication. The DNS suffix comptia.org is also not responsible for routing failures. DNS resolves names to IP addresses, but routing still requires a gateway.

The Mike Meyers / Mark Soper Lab Manual further clarifies that a subnet mask error would prevent even local communication, which is not indicated here. Because only external websites are unreachable, the absence of a default gateway is the definitive root cause.

Comprehensive and Detailed Explanation From Exact Extract:

Event Viewer is the primary tool used to investigate system-level errors and logs, including BSODs. When a BSOD occurs, Windows logs the error codes and associated system behavior under “System” logs in Event Viewer. This allows the technician to review crash events, identify error codes (e.g., STOP codes), and pinpoint hardware or driver issues.

B. Performance Monitor is used for real-time performance tracking and trend analysis, not crash logs.

C. System Information displays system specs but not crash logs or events.

D. Device Manager shows device status and driver issues but doesn’t retain error logs related to BSODs.

The correct answer is B. Turn off notifications in the browser , because the described behavior matches browser notification abuse , not traditional pop-ups. Modern browsers allow websites to request permission to send notifications. If a user previously allowed notifications from a retail site, the site can continue sending onscreen alerts even when pop-up blockers are enabled.

According to the Quentin Docter – CompTIA A+ Complete Study Guide , browser notification permissions are separate from pop-up blocking settings. Pop-up blockers prevent new browser windows or tabs from opening, but they do not block push notifications that were previously approved by the user. These notifications can persist long after visiting a site.

The Travis Everett & Andrew Hutz – All-in-One Exam Guide explains that one of the first troubleshooting steps for repeated browser messages is to review and disable site notification permissions. This directly targets the root cause without affecting browser configuration or user data.

The Mike Meyers / Mark Soper Lab Manual reinforces that resetting or reinstalling the browser is an excessive step unless configuration corruption is suspected. Clearing cache removes stored files but does not revoke notification permissions.

Because the messages originate from previously allowed browser notifications, the most appropriate and targeted fix is to disable notifications in the browser , making B the correct answer.

This scenario involves a mismatch in device time settings, which can affect synchronization and authentication across the network. Using a Network Time Protocol (NTP) server ensures all networked devices maintain accurate and synchronized clocks.

From Travis Everett – All-in-One Exam Guide :

“NTP servers keep all devices on a network in sync. This prevents time drift, which can cause authentication issues with domain logins, certificates, and applications.” .

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:

The amount of installed RAM is the key factor in determining whether a 64-bit OS is needed. A 32-bit operating system cannot effectively address more than 4GB of RAM. Since this system has 16GB of RAM, a 64-bit OS is required to utilize the full memory.

B. An Intel i7 CPU supports both 32-bit and 64-bit OS installations, so it alone doesn’t determine the need.

C. HDD size does not influence OS architecture selection.

D. Ethernet speed is a network consideration and not related to OS architecture.

Comprehensive and Detailed Explanation From Exact Extract:

Public Wi-Fi networks often usecaptive portals, which require accepting terms or authenticating via the pop-up page before full access is granted. Closing it prematurely stops full connection.

FromTravis Everett – All-in-One Exam Guide:

“Captive portals intercept the first HTTP request and present a login or acknowledgment screen. Without completing it, access is denied.”

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.