Audio and Video Systems

What does HDMI stand for?

• High Definiton Multimedia Interface

• High Digital Multimedia Interface

• High Definiton Media Input

• High Digital Media Input

Which of the following is a common audio format used for surround sound?

• MP3

• PCM

• Dolby Digital

• WAV

What is the primary purpose of a video switcher in an audio-video system?

• To amplify audio signals

• To mix different video sources

• To decode audio formats

• To control ligh7ng systems

Which of the following components is essential for wireless audio transmission?

• HDMI cable

• Receiver

• Modulator

• Power amplifier

What is the typical sampling rate for CD audio?

• 22.05 kHz

• 44.1 kHz

• 48 kHz

• 96 kHz

What type of cable is commonly used to connect speakers to an audio system?

• Coaxial cable

• RCA cable

• Speaker wire

• Op7cal cable

What is the purpose of a digital-to-analog converter (DAC) in an audio system?

• To amplify sound signals

• To convert digital audio signals into analog format

• To encode audio for streaming

• To filter noise from audio signals

Which of the following video resolutions is considered 4K?

• 1920 x 1080

• 2560 x 1440

• 3840 x 2160

• 1280 x 720

What is the primary function of an audio mixer in an audio-video system?

• To store video files

• To adjust audio levels and effects

• To connect different video sources

• To encode video for streaming

Which of the following is a feature of a smart TV?

• Limited screen size

• Built-in Wi-Fi connec7vity

• No app support

• Only supports standard defini7on