AXIS NETWORK VIDEO FUNDAMENTALS
PROFESSIONAL SECURITY SYSTEMS PREP
QUESTIONS AND ACCURATE ANSWERS
GRADED A+
●● Temperature contrast in the scene
Answer: When considering a thermal camera, what factors should one
consider?
●● Lens that has adjustable focal length, however needs to be manually
refocused after change
Answer: Varifocal lens
●● Time of light
Answer: Laser Focus
●● Whens lens format is smaller then sensor format
Answer: Vignetting
●● Measure of resistance to dust, and water (Order is important) Ik66 is
the base for most axis cameras, but important to remember that ik66 is
the most common. Actual format is solids, then liquids but we are
measuring for dust and water
,Answer: IP rating
●● The P frames get larger.
Answer: Why does movement cause bit-rate to increase?
●● Proprietary method in which Axis decreases bandwidth usage,
without sacrificing quality or dropping frames. Important to note that
only h.254 and h.256 are zip stream compatible, MJPEG is not
Answer: Zip Stream
●● Rating of which a device can withstand mechanical impacts.
Anything under IK06 is very fragile
Answer: IK Rating
●● Method in which Panoramic cameras can give you a good picture
using multiple sensors
Answer: Dewarping
●● Smog, temperature contrast, and weather or fog
Answer: Deterrent of a Thermal camera
●● Axis Camera Station
Answer: ACS
, ●● Any camera setting in each individual camera can be pulled and
made into a VAPIX command in ACS. (Axis Camera station)
Answer: VAPIX Commands in ACS
●● Proprietary commands from Axis. Essentially their version of
MACROS. It is comprised of 4 parts, in order:
Ip address of device, dir (file directory of where target file is located),
Argument (essentially what am i asking for?) and Value (The end result
of what I am asking for, so for example if the Argument was "resolution"
my Value would be "1920x1080"
Answer: VAPIX
●● Session Initiation Protocol: Basically it does what an old call
operator would do, it starts and makes the connection with the end
person/thing. Then once the connection is made, it steps away. Once the
conversation is done, SIP once again will come back and close the
connection on both ends
Answer: SIP
●● Essentially this protocol established what sound and video codec you
are going to be using during the call. For example, if you are making a
video call, using h.254 and codec G.726 for voice, it will make sure that
the that is the same on the other end of the connection. Same applies if
you are using h.256 and AAC codec. IT knows that you are broadcasting
a high resolution high quality music
PROFESSIONAL SECURITY SYSTEMS PREP
QUESTIONS AND ACCURATE ANSWERS
GRADED A+
●● Temperature contrast in the scene
Answer: When considering a thermal camera, what factors should one
consider?
●● Lens that has adjustable focal length, however needs to be manually
refocused after change
Answer: Varifocal lens
●● Time of light
Answer: Laser Focus
●● Whens lens format is smaller then sensor format
Answer: Vignetting
●● Measure of resistance to dust, and water (Order is important) Ik66 is
the base for most axis cameras, but important to remember that ik66 is
the most common. Actual format is solids, then liquids but we are
measuring for dust and water
,Answer: IP rating
●● The P frames get larger.
Answer: Why does movement cause bit-rate to increase?
●● Proprietary method in which Axis decreases bandwidth usage,
without sacrificing quality or dropping frames. Important to note that
only h.254 and h.256 are zip stream compatible, MJPEG is not
Answer: Zip Stream
●● Rating of which a device can withstand mechanical impacts.
Anything under IK06 is very fragile
Answer: IK Rating
●● Method in which Panoramic cameras can give you a good picture
using multiple sensors
Answer: Dewarping
●● Smog, temperature contrast, and weather or fog
Answer: Deterrent of a Thermal camera
●● Axis Camera Station
Answer: ACS
, ●● Any camera setting in each individual camera can be pulled and
made into a VAPIX command in ACS. (Axis Camera station)
Answer: VAPIX Commands in ACS
●● Proprietary commands from Axis. Essentially their version of
MACROS. It is comprised of 4 parts, in order:
Ip address of device, dir (file directory of where target file is located),
Argument (essentially what am i asking for?) and Value (The end result
of what I am asking for, so for example if the Argument was "resolution"
my Value would be "1920x1080"
Answer: VAPIX
●● Session Initiation Protocol: Basically it does what an old call
operator would do, it starts and makes the connection with the end
person/thing. Then once the connection is made, it steps away. Once the
conversation is done, SIP once again will come back and close the
connection on both ends
Answer: SIP
●● Essentially this protocol established what sound and video codec you
are going to be using during the call. For example, if you are making a
video call, using h.254 and codec G.726 for voice, it will make sure that
the that is the same on the other end of the connection. Same applies if
you are using h.256 and AAC codec. IT knows that you are broadcasting
a high resolution high quality music
