WorksheetsSurveillance Technology Quiz 3 (SDL)
Total questions: 18
Worksheet time: 16mins
Label the parts of a coaxial cable.
Center conductor
Copper shield
Protective plastic
Dielectric
RG-59/U, RG-6/U and RG-11/U cables have an impedance of ______ ohms.
25
50
75
100
In a coaxial cable, the larger the diameter of the copper conductor, the ______ is the signal loss.
higher
lower
An AWG 24 cable is thicker than an AWG 20 cable. True or False.
* AWG = American Wire Gauge
True
False
A properly grounded copper shield of a coaxial cable will ______.
improve cable strength
reduce EMI interference
improve current conduction
improve signal strength
Coaxial cable
Ethernet cable
Fiber Optic cable
Earphone Audio cable
The twisting of the ethernet cable is to ______
improve the cable strength.
reduce EMI or crosstalk interference.
make the cable looks nicer.
group the same colored cables together.
A video balun allows us to ______
extend the range of coaxial cable.
convert analog camera to IP camera
inject power into coaxial cables
use UTP cable on analog CCTV cameras
Advantages of UTP cable over coaxial cables are ______
Select all that applies.
UTP is cheaper.
UTP has lower frequency lost.
UTP is smaller in diameter.
UTP is reduced in electromagnetic interference.
Fiber optics cable uses ______ to transmit data.
sound
vibration
electricity
light
Organize these options into the correct category for fiber optical cables
Resistance to EMI
Long cable runs
High bandwidth
Resistance to lightning
Fragile
More expensive
Which of the below are Video Analytics functions?
Select all that applies.
Tamper detection
intelligent motion detection
Loitering detection
Object detection
People counting
What are the advantages of distributed video analytics as compared to centralised video analytics?
Select all that applies.
Real-time Analysis and Response
Reduced Labor Costs
Decrease in Server Workload, Storage Space and Bandwidth Usage
Scalability and Integration
Stripping
Mirroring
Stripping with Parity
Given the following:
Images size = 2000KB
FPS = 12
No. of camera (N) = 10
Recording hours per day (R) = 12
HDD Storage = 30
What is the required storage?
211.04 TB
215.04 TB
311.04 TB
315.04 TB
Given the following:
Images size = 2000KB
FPS = 8
No. of camera (N) = 10
Recording hours per day (R) = 12
HDD Storage = 30
What is the required storage?
201.04 TB
205.04 TB
207.36 TB
215.36 TB
Given the following:
Image size = 1000KB
FPS = 20
No. of cameras (N) = 2
Recording hours per day (R) = 8
HDD size: 10 TB
How many days can this system store?
8.68
8.98
9.99
9.89
