220-1102 exam dumps: questions 601 to 700 of 828

Correct answer: A

• A. Correct.

  Correct. If a Bluetooth headset pairs but does not show up as an audio playback device, a common real-world cause is that the required Bluetooth audio services/profiles were not bound correctly during pairing. Removing the device and pairing it again is an appropriate first troubleshooting step because it is quick, low risk, and often causes Windows to reinstall the headset as an audio endpoint using the correct Bluetooth services.

• B. Incorrect.

  Incorrect. Disabling the internal speakers does not fix the underlying issue that the headset is not registered as an available audio playback device. Windows cannot send sound to a headset that is paired but not properly installed with the necessary audio function. This is a plausible choice because users often think output routing is the only problem, but here the headset is missing from playback devices entirely.

• C. Incorrect.

  Incorrect. BIOS updates can help with some hardware compatibility issues, but they are not the first step for a headset that was previously working and is now pairing without exposing audio playback. This would be overly invasive and time-consuming compared with re-pairing the Bluetooth device.

• D. Incorrect.

  Incorrect. Windows does not provide a standard setting to manually increase Bluetooth transmit power for this purpose, and range/power is not the symptom described. The headset is already discoverable and pairing completes, so the problem is not basic radio detection.

Correct answer: A

• A. Correct.

  Correct. Some older laptops and wireless adapters do not support WPA3-Personal, and they may misleadingly display an authentication or incorrect password error even when the credentials are correct. Setting the router to WPA2/WPA3 mixed mode allows newer devices to use WPA3 while permitting legacy clients to connect with WPA2. This is a common compatibility solution that preserves better security than falling back to open Wi-Fi.

• B. Incorrect.

  Incorrect. Disabling encryption would reduce security significantly and expose company traffic to interception. It also does not address the likely root cause, which is client incompatibility with WPA3. In a business environment, removing encryption is not an appropriate troubleshooting fix except perhaps in a tightly controlled temporary test, and even then it would not be the best action.

• C. Incorrect.

  Incorrect. Changing the SSID may force clients to treat the network as new and can help in cases involving corrupted saved profiles, but the scenario already states the password is verified and multiple laptops are affected after a router replacement. The more likely issue is the security mode mismatch, not the network name itself.

• D. Incorrect.

  Incorrect. MAC filtering controls which devices are permitted to associate based on hardware address, but it does not resolve authentication failures caused by unsupported security protocols. This option might seem useful for access control, but it is unrelated to the reported incorrect password symptom.

Correct answer: A

• A. Correct.

  Correct. Near-field communication (NFC) is the short-range wireless technology used for tap-to-pay, badge emulation, and other close-proximity exchanges. If NFC is disabled, the phone will not communicate with access readers or compatible payment terminals, even if the wallet app is installed and other radios such as Bluetooth or Wi-Fi are enabled.

• B. Incorrect.

  Incorrect. Bluetooth is a different wireless technology and typically requires pairing for ongoing communication over longer distances than NFC. Building access readers and contactless payment terminals that use tap functionality generally rely on NFC, not Bluetooth pairing.

• C. Incorrect.

  Incorrect. Wi-Fi connectivity is not required for the phone to establish the immediate close-range radio link used by NFC readers. Some wallet services may need network access at other times for provisioning or account updates, but the failure described during the tap interaction most directly points to NFC being disabled.

• D. Incorrect.

  Incorrect. Location services may be required by some apps for policy, nearby-device features, or regional functionality, but they are not the core radio technology used for tap-based NFC communication. Enabling location would not by itself allow the phone to exchange data with an NFC reader.

Correct answer: A

• A. Correct.

  Correct. Automatic screen rotation on a 2-in-1 depends on orientation sensors such as the accelerometer/gyroscope and their drivers. Because manual rotation still works, the display itself is functioning. Since the problem began after a driver update, the most likely first fix is to roll back or reinstall the sensor-related driver in Device Manager.

• B. Incorrect.

  Incorrect. The LCD panel displays the image but does not normally determine device orientation. Since the screen can still rotate manually and touchscreen input works, this points away from a failed display panel and toward the orientation sensor or its driver.

• C. Incorrect.

  Incorrect. A screen lock password does not control whether Windows can use autorotation. Someone might choose this if they confuse lock screen settings with rotation lock, but authentication settings are unrelated to the sensor-based orientation feature.

• D. Incorrect.

  Incorrect. Refresh rate affects how often the display updates, not whether Windows receives orientation data from the device's sensors. This is a plausible-sounding but unrelated display setting.

Correct answer: C

• A. Incorrect.

  This is not the best first step. A factory reset may remove the malicious app, but it is more disruptive than necessary and can cause data loss or require full device reconfiguration. In a realistic support scenario, the technician should first remove the suspicious application and any elevated privileges it obtained. A reset may be appropriate later if the device remains compromised.

• B. Incorrect.

  This is incorrect and would weaken security. Encryption protects data at rest and is not related to stopping adware or malicious mobile apps. Disabling encryption does not help remediate the infection and creates additional security risk.

• C. Correct.

  This is correct. The scenario strongly suggests a malicious or unwanted app: it came from a third-party source, displays persistent ads, drains the battery, and requested excessive permissions including device administrator access. Best practice is to remove the app and revoke elevated privileges first, because some malicious Android apps use administrator privileges to resist uninstallation. This addresses the most likely cause directly and with the least disruption.

• D. Incorrect.

  This is incorrect. While pop-ups can come from a browser, the key clues point to a malicious mobile app rather than normal web activity: ads appear even without a browser open, battery usage increased, and the app requested unrelated permissions. Clearing browser data would not address the root cause.