CompTIA Updated 220-1102 Exam Questions and Answers by aylah

Comprehensive and Detailed In-Depth Explanation:

A rogue wireless access point is an unauthorized wireless network set up by an attacker or mistakenly by an employee. If the rogue AP has the same SSID as the legitimate network, users may unknowingly connect to it, causing security risks and preventing access to internal network resources.

A. Unreachable DNS server – Incorrect. A DNS issue would prevent access to websites, not just file share servers.

B. Virtual local area network (VLAN) misconfiguration – Incorrect. VLAN misconfiguration could restrict network access, but it would not involve an unsecured network with the same name.

C. Incorrect IP address – Incorrect. An incorrect IP could prevent network access but would not explain the presence of an unsecured network.

When a single user is experiencing network issues while others are unaffected, the first step should always be to check the physical connectivity. This includes verifying that the Ethernet cable is plugged in properly, the NIC is enabled, and the link lights are active.

Option B (Reboot the router): Affects all users and is not necessary since others are not experiencing the issue.

Option C (Disable IPv6): Unlikely to resolve the problem unless you’re troubleshooting a specific IPv6-related issue.

Option D (Check the DNS settings): A valid step if internet access is limited to name resolution problems, but start with physical connectivity first.

? Reference:

CompTIA A+ 220-1102 Exam Objective 2.3 – "Given a scenario, troubleshoot common networking issues."

CompTIA Troubleshooting Methodology – Step 1: Identify the problem.

Comprehensive and Detailed In-Depth Explanation:

When a mobile OS is updated, some applications may become incompatible or corrupted due to changes in system files. The best solution is to update the failed software, as the app developer may have released a patch to resolve compatibility issues.

B. Registering the smartphone with an MDM solution – Incorrect. MDM (Mobile Device Management) helps with security policies but does not fix application compatibility issues.

C. Installing a third-party client – Incorrect. Using a different app may work but does not resolve the root cause of the issue.

D. Clearing the cache partition – While clearing the cache can help with performance, it is unlikely to resolve an application not opening due to an OS update.

Malware infections are commonly prevented by having updated endpoint protection software (antivirus/antimalware). Keeping this software updated ensures it can detect and remove the latest threats effectively before they cause damage. Restore points and preinstallation environments are recovery methods but do not prevent malware infections. Disabling System Restore removes the ability to roll back system changes, which is counterproductive. Endpoint protection software is a fundamental security control in Core 2 security domains and is critical in maintaining system integrity and preventing infections. Regular updates to antivirus definitions and endpoint software are a proactive defense aligned with security best practices covered in the official CompTIA materials.