TestOut LabSim A+ Certification Practice Exam

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What common features are available through TRS ports on a sound card?

HDMI out; Optical in
Speaker out; Microphone in
USB out; Line in
Line out; Coaxial in

The correct answer is: Speaker out; Microphone in

The common features available through TRS ports on a sound card primarily include speaker output and microphone input. TRS stands for Tip-Ring-Sleeve, which refers to the connector type commonly used for audio signals. In a typical sound card setup, the TRS ports are designed to handle two crucial audio functions: 1. **Speaker Out**: This is where you connect your speakers or headphones. The output from the sound card sends audio signals through these ports to playback sounds from your computer. TRS connectors effectively transmit stereo audio, making them ideal for connecting audio playback devices. 2. **Microphone In**: This input allows users to connect microphones to the sound card, enabling voice recording or communication purposes. The microphone input typically features a lower sensitivity compared to line-level inputs, making it suitable for capturing audio directly from mic sources. These two functions—speaker out and microphone in—are essential for the overall audio experience, enabling both sound output and sound input through the sound card's TRS connections. Other options listed involve connectors that are generally associated with different audio standards or functionalities, which do not align with the common features provided by TRS ports.