单选题
Which of the following is the standard aspect ratio for HDTV？（）
2.35：1
4：3
1.33：1
1.78：1
单选题
An optical cable is used to transmit：（）
digital audio from a component to a receiver.
analog video from a component to a receiver.
analog audio from a component to a receiver.
digital video from a component to a receiver.
单选题
Which of the following is the correct signal flow for an analog multi-room audio system？（）
Source，Volume Control，Speaker，Amp
Source，Amp，Volume Control，Speaker
Amp，Source，Volume Control，Speaker
Speaker，Amp，Volume Control，Source
单选题
When certifying a CAT5 cable installation the integrator must perform which of the following tests？（）
Measure Impedance
Calculate Latency
Measure Attenuation
Measure Resistance
单选题
Which of the following video outputs from a media PC provide the BEST picture quality， when connecting the media PC to a projector？（）
SVGA
VGA
S-Video
DVI
单选题
Which of the following is the recommended placement of the rear surround speakers in a 5.1 surround installation？（）
Directly to the left and right and slightly in front of the listener
Directly to the left and right and slightly behind the listener
Above and behind the listener
Directly behind the listener
单选题
The native resolution for 1080i is（）
1920×1280
1920×1080
1280×1080
1280×720
单选题
Which of the following would be the impedance of an 8 ohm and a 4 ohm speaker that are wired in parallel？（）
2.66 ohms
Less than 1 ohm
4 ohms
12 ohms
单选题
A customer notifies the integrator that the system keypad reports trouble at a window. Upon inspection， the customer finds the window closed and locked； the customer resets the system and it fails to correct the issue. Which of the following steps should the integrator take to resolve the issue？（）
Check that the sensor is not misaligned.
Clean the space between the sensor and the plate.
Toggle the tamper switch to reset the sensor.
Bypass the zone.
单选题
Which of the following cabling would be MOST commonly used with digital volume controls？（）
Unshielded twisted pair
RJ-59
16/4 solid conductors
Speaker Wire
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