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165 Cards in this Set
- Front
- Back
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what are the numbers for fixed cameras
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1-2
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what are the numbers for fixed dome
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3-4
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what are the numbers for PTZ
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5-6
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What is the F-stop?
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describes the light sensitivity.
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What is the aperture?
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size of the lens opening
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What controls the size of the aperture?
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Iris
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What is a fixed Iris
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Doesn't move
Only used in constant light |
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What is a DC-iris?
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motor-driven, automatically adjustable iris
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What is a P-iris?
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limits the closing of the iris to avoid blur and diffraction using special software.
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What is depth of field?
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The area before and after the focal point where an image appears to be in focus
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What is a fixed lens
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offers fixed focal length
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What is a wide angle lens?
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offers wide view
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What is a zoom/tele lens?
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offers range of focal length
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What is a varifocal lens?
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offers a range of focal length. think of in between fixed and zoom lens.
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What is chromatic aberrations?
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a lens fails to focus all colors to the same convergence point.
Typically caused by poor quality lens |
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What is lens flare?
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colored patches, ghost images, haloes, haze over entire image
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What range wave length is viewable?
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~750nm, camera works best in this range.
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What is a semi-covert illuminator?
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~850nm, visibly looks like a cigarette but a spot light to the camera
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What is a covert illuminator?
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~950nm, not visible to the eye but a spotlight to the camera.
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What is white balance in a camera?
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adjustment of the primary colors to achieve the correct color representation
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What is the number for video encoders?
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7
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What is the number for system products?
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8
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what is the number for accessories?
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9
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What is light measured by?
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lux, 1 lux = 1 lumen per square meter
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What is the inverse square law of light?
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double the distance - requires four times the light
ie 1m = 64 lux, 2m = 16 lux, 4m = 4 lux, 8m = 1 lux |
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what was first camera to have light finder?
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q1602
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What was first camera to have WDR - Dynamic Capture?
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Q1604
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What camera series does gatekeeper?
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Q1750 series
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What is a pixel?
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Picture element. The smallest unit of information in a digital image.
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What are the pixel requirements for detection, recognition, and identification?
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detection = 3 pixels
recognition = 16 pixels identification = 80 pixels measured in pixels in a line from ear to ear |
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What is the average width of the human face?
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6.3 inches
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What pixel count is needed to identification?
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80 pixels/6.3 inches = 12.5 pixels per inch
12.5 pixels per inch X 12 inches = 150 pixels per foot |
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What happens when you change the mm of a lens?
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as you increase the lens mm it zooms in, as you decrease the lens mm it zooms out.
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What is Onvif?
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Industry standards for digital video
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Who created HDTV?
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SMPTE - Society of Motion Picture and Television Engineers
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What 4 things do HDTV standards affect?
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1. color
2. resolution 3. frame rate 4. wide screen format |
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What are the minimum HDTV standards?
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1. resolution 1280x720p or 1920X1080p
2. full frame rate 25-30 and/or 50-60 fps 3. 16X9 4. wide color spectrum |
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What is the p in 720p or 1080p?
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progressive
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What does IP stand for?
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Ingress Protection
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what do the 2 numbers in an IP rating represent?
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first number is dust, second number is water
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What are the 2 types of compression?
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Lossless compression - like a zip file
Lossy compression - removes data permanently. |
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What is significant about the NetEye 200?
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first digital surveillance camera in the world.
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What is special about the Q1765?
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gatekeeper.
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What four variables make up video bandwidth?
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1. video codec
2. scene complexity 3. frame rate 4. resolution |
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What is a last number in a product name of 1?
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VGA - 640x480
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What is a last number in a product name of 2?
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4CIF - 104x480
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What is a last number in a product name of 3?
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SVGA - 800x600
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What is a last number in a product name of 4?
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HDTV 720 - 1280x720
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What is a last number in a product name of 5?
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HDTV 1080 - 1920x1080
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What is a last number in a product name of 6?
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3MP - 2048x1536
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What is a last number in a product name of 7?
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5MP - 2560x1920
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What is a last number in a product name of 8?
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4K Ultra HD - 3840x2160
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What is the extension if a product name -C?
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Cooling enclosure
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What is the extension if a product name -E?
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Outdoor enclosure
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What is the extension if a product name -L
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LED Illumination
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What is the extension if a product name -P
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Panoramic view 360
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What is the extension if a product name -R
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Rugged
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What is the extension if a product name -V
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Vandal resistant
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What is the extension if a product name -W
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Wireless
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What is the extension if a product name -S
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Stainless Steel
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What is the first letter in a product name M
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most affordable
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What is the first letter in a product name P
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Most versatile
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What is the first letter in a product name Q
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High-end, full functionality
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What is the first letter in a product name T
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Anything not a camera/encoder
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What does the last number in a product name represent?
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resolution for cameras, # of channels for encoders
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What is the an IP rating?
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Ingress Protection
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what is the IP rating for an outdoor camera?
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IP-66
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What is an IK rating?
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determines resistance
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What is the only Axis wireless camera series?
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M10
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What is unique about the M11 series of cameras?
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ability to change the lens
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What is the size of an SDHC card?
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32 gig
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What is the size of an SDXC card?
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64 gig
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What storage card is used for Axis firmware below 5.40?
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SDHC
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What storage card is used for Axis firmware above 5.40?
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SDXC
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what class of SD cards does Axis use?
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Class 10
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What is the maximum length of cable for the Axis P12 covert style camera series?
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26ft
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What is lightfinder?
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color in extreme low light
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What camera introduced lightfinder?
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Q1602
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What camera introduced WDR - Dynamic Capture?
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Q1604
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What Axis camera series introduced gatekeeper?
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Q17
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What was the world's first surveillance camera to do HD?
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Q1755
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What is the most popular Axis camera series in North America?
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P33 series
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What is the Automatic IR cut filter?
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physically moving light filter
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What are 2 steps to setting up a Corridor convert?
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1. physically turn camera
2. adjust software |
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Which camera series first offered optical zoom straight in and out?
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Q17
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What camera series introduced advanced gatekeeper and what is that?
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P55 - gatekeeper plus PTZ
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What is active gatekeeper?
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advanced gatekeeper plus auto-track
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What camera series offers 360 spin PTZ?
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Q60
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What is MJPEG and H.264?
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MJEPG sends full image video in frames
H.264 sends 1 full image (I-frame) then frames with only moving objects (p-frame) |
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What is an I-frame?
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Intra-coded
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What is a P-frame?
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Predictive coded
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What is the distance from I-frame to P-frame?
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GOV length - group of video
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When should you not use H.264?
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a PTZ that is constantly moving. The processing power necessary for converting the P-frames isn't worth the small amount of bandwidth.
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What is a Privacy Mask?
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deleting a section of video that isn't needed to save bandwidth and storage space. i.e. ceiling
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What is gain?
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measure of amplification of electrical signals
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What are the effects of increasing gain?
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increased noise
increased bandwidth better handling of motion more light |
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What is failover with edge storage?
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If the system goes down storage happens locally and replaces when the system comes back up.
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What camera series offers Arctic Temperature control?
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Q60
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What is the thermal series camera?
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Q19
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What material can thermal not see through?
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Glass
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What is the chassis series that doesn't follow the Axis naming convention?
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Q7920
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What is the Q7920 capacity?
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14 encoders, 4 ethernet ports
6 channel encoders - 84 total channels (requires 84 IP addresses) |
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What is the handheld system tool that simplifies field installation?
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T8414
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What 4 OSI layers does Axis operate in?
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1. Physical
2. Data Link - Switch 3. Network - Router 4. Transport |
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What are the 3 elements of a data packet?
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1. Header (destination/origination)
2. data 3. Trailer (stop and error detection) |
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What are the 2 most common transport protocols?
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1. TCP - waits for handshake
2. UDP - just sends it |
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What's the maximum distance for twisted pair cable?
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100m
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What are the two types of fiber and which one goes furthest distance?
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single-mode (furthest)
multi-mode |
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What cable reduces electromagnetic emission?
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STP - Shielded Twisted Pair
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What device besides cable operates at layer 1?
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Hub (never use)
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What device operates at layer 2 for Axis purposes?
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Switch (cannot get out of network)
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What are 2 router classifications and what layer do they operate?
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Subnet - Layer 3
VLAN - Layer 2 |
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What do the 2 octets in a MAC address identify?
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00-40-8C-71-04-CB
OUI - Organizationally Unique Identifier 00-40-8C-71-04-CB Product Unique Identifier |
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What is Axis' OUI?
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00-40-8C
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What is the Axis default IP address?
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192.168.0.90
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What is a DNS?
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Domain Name Server
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What is and ARP and what does it do?
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Address Resolution Protocol
resolves the IP address to the corresponding MAC address |
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What is DDNS and what does it do?
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Dynamic Domain Name Service
Allows DHCP addresses to act as if they were static |
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What is NAT and what does it do?
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Network Address Translation
translation of an IP address used within one network to a different IP address know within another network. |
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What is Port Forwarding and what does it do?
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technique of translating the address or port number of a packet to a new destination.
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What are the 3 IPv4 address classes and what are the ranges of each Net-ID?
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Class A = 1-126
Class B = 128-191 Class C = 192-223 |
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What are the IPv4 default subnet masks?
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Class A = 255.0.0.0
Class B = 255.255.0.0 Class C = 255.255.255.0 |
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What is the default port for DNS
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53
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What is the default port for HTTP
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80
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What is the default port for HTTPS
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443
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What is the default port for SMTP
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25
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What is the default port for FTP
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21
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What is RAID?
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Redundant Array of Independent Disks
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What are the characteristics of RAID 0
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uses striping, data distributed over several disks, no redundancy, high performance
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What are the characteristics of RAID 1
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mirroring, identical data on 2 disks, redundancy, lower capacity
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What are the characteristics of RAID 5
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Data and parity is spread over 3 or more disks, hot swappable, can cope with single disk failure
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What is the max wattage of an IEE802.3af powering switch/midspan?
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15.4 W
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What is the max wattage of an IEEE 802.3at PoE+ powering switch/midspan?
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30.0 W
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What are the Power over Ethernet classes and characteristics?
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Class, Type, Min @ source, Max @ device
0, 802.3af, 15.4W, 12.95W 1, 802.3af, 4.0W, 3.84W 2, 802.3af, 7.0W, 6.49W 3, 802.3af, 15.4W, 12.95W 4, 802.3at PoE+, 30W, 25.5W N/A, High PoE, 60W, 51W (use min@source for budgeting power) |
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What is the AXIS Camera Application Platform? |
ACAP - Open source application platform for loading analytics on the camera. Where you get the analytics and where you get them. |
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What is Digital Autotracking? |
Camera tracks movement within a frame digitally |
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What is Cross-line Detection? |
Triggers event when something crosses a line. |
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What is it called when the camera records before an event with Camera Tampering analytic? |
Pre-buffer |
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What is used to activate built in motion trigger? |
Included window and exclude windows. identifies areas areas that will and will not trigger an event. |
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What 3 settings can you adjust on built in motion trigger? |
1. Object size 2. History 3. Sensitivity |
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What is history on motion detecting? |
low - objects will trigger for a short period of time high - objects will trigger for a long period of time |
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What is a guard tour? |
preset motion of a PTZ to cover an area. |
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What 2 shapes can you make with built-in motion detection? |
Square and Rectangle. |
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What unique feature did Video Motion Detection 2.1 introduce? |
free flow shapes on auto-detection |
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What is an event called within a camera? |
Action Rule |
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What is VAPIX? |
It's the AXIS API. |
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What is ARTPEC? |
Axis' chip found within the camera. |
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What is interlaced video? |
"Painting" video images on screen by scanning or displaying each line or row of pixels. |
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What are the techniques for deinterlacing? |
1. blending 2. Adaptive interpolation 3. Motion adaptive interpolation |
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What is progressive scan? |
values obtained for each pixel on the sensor and each line of image data is scanned sequentially. |
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What do you need for encoders? |
75 ohms |
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What is the 291-1U? |
Chassis, 3 blade, 18 channels, 1 ethernet port |
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What is Axis Camera Management? |
An installation, configuration, and management tool designed to manage Axis video products. |
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What can you do with Axis Camera Management? |
1. find Axis cameras on the network 2. assign IP address 3. user management (set credentials) 4. upgrade firmware 5. Parameter Management |
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what are the 2 firmware upgrade options? |
parallel or sequence |
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What is Parameter Management? |
creating mass settings at one time and push it out to all cameras on the network. |
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What is Axis Media Control? |
ActiveX component for playing media streams, cameras, and video servers. controls any function of the camera IE is the only supported browser |
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What are the 6 steps to manually focus? |
1. open iris 2. hit reset 3. manually get close to focus 4. select fine tune focus automatically 5. re-enable iris 6. select advanced tab |
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What 3 steps should you take in troubleshooting? |
1. firmware update 2. AXIS Media Control update 3. factory default settings |
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What is the purpose of a lens? |
To define your field of view |
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What wireless security protocol does Axis recommend? |
WPA2 |
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What are the pixel requirements for detection, recognition, and identification on thermal cameras? |
Detection = 1.5 pixels Recognition = 6 pixels Identification = 12 pixels |
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What are the 3 priorities for H.264? |
none, Frame Rate, Image Quality |
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What 3 H.264 characteristics effect bandwidth? |
GOV length Target bit rate Prioritization |
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What is the only audio I/O module? |
P8221 |
