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WorksheetsRevision Exercise
Total questions: 20
Worksheet time: 7mins
Which one of the following is the most commonly used RAID in video surveillance system?
RAID 0/1
RAID 1/3
RAID 5/6
RAID 10/15
Which one of the following devices is used to protect surveillance equipment from lighting?
signal amplifier
signal arrester
signal generator
signa converter
Which one of the following is the latest video compression standard?
mpeg4
h.263
h.264
h.265
Which one of the following devices is used to protect devices from sudden power disruption
midspan
signal arrester
UPS
PoE
Where are the two recommended places to install signal amplifier?
camera end and middle
middle and monitor end
camera end and monitor end
video balun and camera end
Which one of the following can provide power to equipment
POE
Midspan
UPS
Video balun
Video balun can be used to convert
coax cable to networkcable
network cable to fiber optic
serial to parallel port
electrical to light signal
In order to save hard disk storage, we need to consider
number of cameras recording
number of cable used
number of recorder used
number of people operating the cameras
Which one of the following can enable an operator to see multiple cameras installed at different location on a single monitor screen?
quad compressor
video matrix switch
video management server
video sequencer switch
The term Field of View (FoV) means
size of image
what the camera is seeing?
the height of the image
the recording mode
The most important element in order for camera to produce a clear image is
lighting
colour
camera brand
camera model
Which one of the following tools can help to test colour image?
Vildeo filter
ND Filter
polariser
band pass filter
Which one of the following is a term used to describe smallest light needed to produce an image?
Lux
Shutter
Sensitivity
Ambient
Which one of the following is a term to compensate the image processing to handle different lighting range?
Field of View
White balance
WDR
BLC
In analog installation, rolling lines appears as a result of
faulty cables
camera faulty
cable too closed to power sources
monitor pixel faulty
What is the term used to describe testing equipment before installing?
bench test
before test
endure test
stretch test
Which one of the following is used to test colour?
colour wheel
colour chart
picture chart
photograph
Miguel connects all cables to PoE sitch. One day his PTZ has intermittent connection lost. What is a possible cause of this?
Not enough power
his friend unplug the RJ45
he used the wrong cable
he use the wrong camera
Ming noticed on her screen the camera output seems fuzzy, what can go wrong?
wrong cable
the camera too far from the subject
too much power
cable not grounded
Peter wants to see a wide angle with greater detail of an image, what he should do?
reduce the sensitivity
increase the sensitivity
increase the FoV
reduce the foV
