220-1102 Exam Dumps - CompTIA A+ Questions and Answers

When a user reports slow performance, a changed home page, and pop-up ads, these are classic signs of malware infection. The first step should be:

Update the antivirus program and run a full system scan: This helps identify and remove any malware present on the system, addressing the root cause of the issues.

Uninstall the suspicious search engine and reset the home page: This addresses the symptom but not the underlying cause, which is likely malware.

Install the latest updates for the operating system: Important for security but secondary to removing malware.

Block the pop-up ads using the web browser settings: Again, addresses the symptom but not the root cause.

When a user experiences slow web page loading on their phone while in the office, the most likely cause is:

High network traffic: In an office environment, many devices are often connected to the network simultaneously, which can lead to congestion and slow internet speeds. High network traffic means more devices are competing for the same bandwidth, causing delays.

Exceeded the data usage limit: This typically applies to cellular data plans, not Wi-Fi in an office setting.

Sluggish response time: This is a symptom rather than a cause and can result from high network traffic.

Degraded network service: While this could be a factor, it is broader and less specific than high network traffic, which is more directly related to the user's experience.

A rollback plan describes the process of reverting a system to its previous state after a failed upgrade or change. This ensures system stability and functionality by restoring known good configurations and is a crucial part of change management to minimize disruptions in case of unsuccessful updates.

When an Android device experiences slow boot times and application crashes after installing apps from a third-party website, scanning the system for malware is a critical first step. Third-party sources can often host malicious software that can compromise device performance and security. A malware scan can identify and remove such threats, potentially resolving the performance issues and application instability. Clearing the web browser cache, enrolling the device in an MDM system, and confirming app compatibility are useful steps but do not address the immediate concern of potential malware introduced by third-party app installations.

The presence of pop-up windows advertising free software and the error message about memory are indicative of spyware infection. Installing and running antispyware software is a practical first step to remove the unwanted software and resolve the issue without resorting to more drastic measures like re-imaging the system.

B. Startup Folder1: The Startup folder is a special folder that contains shortcuts to programs or scripts that will run automatically when a user logs on. The technician can create a shortcut to the script and place it in the Startup folder for the conference room computer or for all users.

E. Task Scheduler23: The Task Scheduler is a tool that allows you to create tasks that run at specified times or events. The technician can create a task that runs the script at logon for the conference room computer or for all users.

The pwd command, which stands for "print working directory," is used in Linux and Unix-like operating systems to display the current directory in which the user is operating. This command outputs the full pathname of the current working directory, helping users to understand their current location in the filesystem hierarchy.

pwd: When executed, it provides the absolute path of the directory you're currently in, which is useful for navigation and scripting purposes.

Other options listed:

dig: This command is used for querying DNS name servers for information about host addresses, mail exchanges, name servers, and related information.

find: This command is used to search for files in a directory hierarchy based on specified criteria (such as name, modification date, size, etc.).

cat: Short for "concatenate," this command is used to read the contents of files and output them to the terminal.

To resolve a BSOD issue on a Windows 10 PC after installing optional Windows updates, the best approach is to Roll back the device drivers (B). BSODs can often be caused by incompatible or faulty drivers introduced during an update. Rolling back the drivers to a previous version can restore system stability and resolve the BSOD issue​​.

When encountering a warning about antivirus protection malfunctioning, the first step should be to isolate the computer from the network to prevent potential spread of malware. Updating the endpoint protection software is also crucial to ensure the latest virus definitions and security features are in place to effectively identify and remove the threat.

When an Android device starts exhibiting issues like frequent crashes and rapid battery drain after downloading an application, the first step should be to address the immediate cause:

Uninstall the game application: Since the issues started after the game application was installed, removing it is a logical first step. Unwanted or malicious applications can cause such symptoms by running harmful processes in the background or exploiting system resources.

Install the latest security patches: Keeping the device updated with the latest security patches is crucial for protecting against vulnerabilities that could be exploited by malicious software. Updating can resolve existing security flaws and improve device stability.

The Hardware Compatibility List (HCL) is a list that indicates hardware components that are compatible with a specific software or operating system. If software installation fails due to incompliance with the HCL, it's most likely due to core hardware components like the Network Interface Card (NIC) or the Central Processing Unit (CPU) not being supported or not meeting the software's minimum hardware requirements. The PSU, KVM, RAM, and DVI are less likely to directly impact software compatibility as defined by the HCL.

Using a password manager is the best way to mitigate the issue of users recording their login information in accessible areas. Password managers securely store and encrypt passwords and login details, reducing the need for users to write down or remember multiple complex passwords. This approach enhances security by encouraging the use of strong, unique passwords for different accounts without the risk of forgetting them or the unsafe practice of writing them down. Trusted sources, valid certificates, and user training are important security measures but do not directly address the problem of managing multiple secure passwords as effectively as a password manager does.

Given that the smartphone's screen was recently repaired and now experiences issues with Wi-Fi connectivity, despite showing that it is connected to a network, the problem could be related to the internal antenna connections that might have been disturbed or disconnected during the repair process.

Internal Antenna Connections: Smartphones use internal antennas for Wi-Fi and cellular connections. If these antennas are not properly connected, the device may show as connected to a Wi-Fi network but fail to transmit data effectively, resulting in no internet access.

Checking static IP settings (B) would be relevant if the device were not obtaining an IP address at all, but the device does have an IP address. Airplane mode (C) would prevent the device from connecting to Wi-Fi networks entirely. Digitizer calibration (D) is related to the touchscreen functionality and would not affect Wi-Fi connectivity.

A system image is a complete snapshot of everything on a device's storage at a given point in time, including the operating system, installed programs, system settings, and all user files. This method is the best way to back up the OS and data comprehensively because it allows for the restoration of a system to its exact state at the time the image was taken. This is particularly useful in disaster recovery scenarios where it's crucial to restore a system quickly and efficiently to minimize downtime.

The Network and Sharing Center in the Control Panel is the central place to manage network connections and settings in Windows. When facing issues with accessing a mapped drive, this utility allows users to review and adjust network settings, making it possible to resolve connectivity problems. It provides options to view network status, set up new connections, change adapter settings, and troubleshoot network problems, which can help in enabling connectivity to the mapped drive on the Windows XP machine.

Group Policy is a feature in Windows that allows network administrators to manage and configure operating system, application settings, and user settings in an Active Directory environment. It can enforce password policies across the network, including password length requirements, making it the best tool for ensuring compliance with security policies.

When a user's cursor is moving on its own and unauthorized data transfer is occurring, the first step a technician should take is to Quarantine the workstation. This involves isolating the affected system from the network to prevent the spread of malware or unauthorized access to other parts of the network. Quarantining helps in containing the threat and provides a safe environment to investigate and remediate the issue without risking further contamination or data loss​​.

The error "This site cannot be reached" often indicates a problem with DNS (Domain Name System) resolution, where the browser is unable to translate a website's domain name into its corresponding IP address. Since the laptop was set to use DHCP (Dynamic Host Configuration Protocol) at home, it's possible that it's not receiving the correct DNS server information from the home network, or the DNS servers it was using at work are not accessible from the home network.

DNS: Checking and possibly correcting the DNS settings to ensure they are appropriate for the home network might resolve the browsing issue. The user can try using public DNS servers like those provided by Google (8.8.8.8 and 8.8.4.4) or Cloudflare (1.1.1.1) if the default DNS servers provided by the home ISP are not working properly.

HTTPS (A) is a protocol for secure communication over a computer network but is not something that needs to be configured on the user's end to solve this type of issue. VLAN (B) stands for Virtual Local Area Network and is more related to network segmentation and management within larger networks, not typically applicable to home internet issues. SMTP (D) stands for Simple Mail Transfer Protocol, which is used for sending emails, not for general web browsing issues.

To mitigate brute-force attacks, implementing a failed log-in lockout feature is effective. This security measure temporarily disables user accounts after a specified number of unsuccessful login attempts, preventing attackers from continuously trying different password combinations to gain unauthorized access.

In the context of a forensic investigation, especially involving sensitive information, preserving the integrity and the chain of custody of the potential evidence is crucial. The step to "Recover and secure the workstation" involves physically securing the workstation to prevent any unauthorized access and logically securing the data by ensuring that no changes are made to the system or files. This step helps maintain the original state of the workstation, which is essential for a legitimate forensic analysis and ensuring that the evidence is admissible in legal proceedings.