ユーザーのワイヤレス ヘッドセットは、電源を入れると「接続済み」ステータスが表示されますが、ユーザーの電話の Bluetooth リストにはヘッドセットが「未接続」と表示されます。技術者は次のうちどれを行う必要がありますか?
正解:C
Comprehensive and Detailed In-Depth Explanation: When a device shows as not connected even though it previously paired, the most effective action is to re- pair the devices. This resets the Bluetooth connection, clears any corruption in pairing profiles, and re- establishes communication. * Option A: Entering a PIN is only relevant during initial pairing and may not be prompted again. * Option B: Turning off Wi-Fi doesn't typically affect Bluetooth; they operate on similar frequencies but don't conflict this way in normal use. * Option D: If Bluetooth were disabled, the device wouldn't appear at all, not just show as "not connected." CompTIA A+ Core 1 Exam Objective Reference: * Objective 1.5: Given a scenario, connect and configure accessories and ports of mobile devices.