EMT Practice Test

1. Question Content...

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Question1: Using bidirectional predictive interframe in H.264 will

Question2: A customer wants to minimize the risk of loosing recordings if there is a disconnect between the camera and the server. What is recommended?

Question3: Which method can be used to make an Axis camera available over the internet?

Question4: The pixel density describes

Question5: An integrator wants to wire an external 12 V relay to the output port of a camera. Which two pins should be used?

Question6: The camera sensors in Axis' multidirectional cameras can be

Question7: The purpose of an IR cut filter is to

Question8: A customer wants his video surveillance system to completely cover the perimeter of his property. For the installer to ensure that the camera system is not subject to sabotage, he should

Question9: The purpose of DHCP is to

Question10: A customer is not getting the storage retention they had expected while using H.264 with an AXIS Q6034-E PTZ camera on a continuous guard tour. What is the most likely cause of the problem?

Question11: Why is germanium used for thermal camera lenses?

Question12: In many places 24 V AC has been popular as a power source but now 12 V and 24 V DC is increasing in popularity because

Question13: For AXIS P3247-LVE, the last digit represents

Question14: In what way does VAPIX help integrators?

Question15: A camera's recording stream has a bitrate of 8 Mbit/s. How much storage is used per hour?

Question16: Which of the following conditions has to be met to use multicast streaming?

Question17: Which of the following are common ways to protect video while using a wireless network? (Choose two)

Question18: If image clarity changes are made within the camera web interface, but are not reflected within a Video Management Software (VMS), what is the most likely cause of the camera not accepting the settings?

Question19: The ONVIF standard gives the end user benefits such as (Choose two)

Question20: Which device allows for displaying digital live video on a monitor?

Question21: When using IR illuminators, which wavelengths would not produce any visible glow?

Question22: While setting up an AXIS Q7404 Video Encoder for control of an analog PTZ using Pelco D protocol, you run into a problem. After uploading of the proper Pelco drivers into the AXIS Q7404 Video Encoder you find that channel 1 is controlling the wrong analog PTZ. Which option below would you adjust to fix this problem so you can avoid changing physical cables?

Question23: Which of the following allows customer to access between 2-4 channels of live and online stored video at any time?

Question24: Which of the following statements are true for H.264? (Choose two)

Question25: As this person enters the scene, what is true about P-frames?

Question26: Which is true about P-iris?

Question27: Which is true about a MAC address? (Select two)

Question28: Two cameras are streaming 6 Mbit/s each. Approximately how much storage is required to record one hour of video from both streams?

Question29: Which is an impact on cameras that are operating above their specified temperature limit?

Question30: In this scene, with a pole-mounted camera, what feature would help reduce the bandwidth for this camera?

Question31: Looking at the picture below, which setting would best address the blurring that's occurring with faster moving objects?

Question32: Which statement is true regarding H.264 and Motion JPEG?

Question33: Which are possible means to extend server storage for video? (Select two)

Question34: What is the primary reason for using a multisensor panoramic camera versus a single-sensor panoramic camera?

Question35: A Day & Night camera automatically removes the IR-cut filter for low light operations. In that mode, the camera becomes sensitive to IR light. Which wavelength is the camera most sensitive to?

Question36: Firmware upgrades are efficiently installed using

Question37: Which certified product line is recommended for hazardous areas?

Question38: What is the appropriate usage for an Axis thermal camera?

Question39: Axis recommends shielded cables for outdoor installations primarily to ensure

Question40: PoE class 3 corresponds to what power level at the PSE?

Question41: An explosion protected camera

Question42: What device is used to forward data from one LAN to another?

Question43: How does the AXIS Design Tool allow users to estimate the effects of scene complexity and motion on bandwidth and storage usage?

Question44: What protocol on layer 3 enables network traffic?

Question45: Which are focus technologies offered by Axis cameras? (Select two)

Question46: which describes an opportunistic attack?

Question47: For which purposes would a thermal network camera be a viable alternative to a standard network camera?
(Choose three)

Question48: Match each function to the correct video surveillance system component. Drag each gray box from the left column to the matching blue box in the right column.

Question49: A video encoder effectively turns an analog camera into a network camera, by (Select two)

Question50: What type of lens does a fixed box camera typically use?

Question51: External (non-integrated) IR illumination can help to (Select two)

Question52: An installation with an AXIS P1344 experiences image flickering. How can this be remedied?

Question53: Session Initiation Protocol (SIP) is used to set up

Question54: If using H.264 compression, in theory, what could a video containing no l-frames look like?

Question55: How can a system designer compare the light sensitivity of network cameras from different manufacturers?

Question56: Which is a tool that enables easy upgrade of device firmware?

Question57: The Axis pixel counter allows a user to

Question58: If a camera is pointed down a hallway with no windows and the color seems "washed out" or faded, which of the following settings should first be adjusted to improve the image?

Question59: Which conditions would lead the system designer to choose a camera with good low light performance over a thermal camera? (Choose two)

Question60: Which of the following statements is a recommended best practice for outdoor installations of Axis cameras?

Question61: A company is looking for a dome designed to withstand vibrations inherent to transportation. Which of the following cameras should be recommended?

Question62: What is 3D privacy masking?

Question63: If an object is placed 1 m (3 ft) away from a light source and the lux level is 3200 lux, what is the lux level at a distance of 8 m (24 ft)?

Question64: What product is best suited for video broadcast?

Question65: An installer needs a camera to monitor a hallway in an office complex. The hallway is 2.5 m (8 ft 2 in) wide.
The customer wants to be able to identify people (80 pixels per face). What is the minimum resolution needed to meet this requirement?

Question66: The purpose of a router is to

Question67: What is one of the main purposes of using AXIS Camera Application Platform?

Question68: In environments with rain or snow, an Axis bullet camera has which benefit?

Question69: A deep learning processing unit (DLPU) in a camera is used to provide

Question70: When would the most noticeable difference between progressive scan and interlaced video be apparent?

Question71: Match the following descriptions to their proper IP rating below. Drag each gray box from the left column to the matching blue box in the right column.

Question72: What is the most efficient method for sending a video stream to multiple recipients simultaneously?

Question73: What feature allows a PTZ camera to maintain a sharp image even when it is pointed above the horizon?

Question74: What is the main purpose of the laser module in Axis PTZ cameras?

Question75: An integrator receives a specification for surveillance cameras for a large project, where the requirements are impossible to live up to. Which of the key numbers below would have to change in order to find a camera to fill the demands?

Question76: Fiber optic cables

Question77: What is a benefit of utilizing external IR illumination with 940 nm?

Question78: Which of the following statements about multicast video streaming are true? (Choose three)

Question79: Which of the following actions can be taken using the AXIS T8414 Installation Display? (Choose two)

Question80: When dealing with a poorly lit scene, which of the following options would most improve image quality?

Question81: What type of lens has better iris control in all lighting conditions?

Question82: How can using PoE to power cameras help keep them running during a power outage?

Question83: An installer is upgrading an installation with several analog PTZ cameras using Axis Q-line encoders. Which of the following options should be checked before proceeding?

Question84: If a surveillance camera is installed in an environment with fluorescent lighting, which effect may this have on the video quality?

Question85: What is this ?

Question86: A PoE switch has a power budget of 90 W. How many class 2 devices can it power?

Question87: What is the red tip used for?

Question88: AXIS Device Manager is

Question89: What advantage does Axis Sharpdome technology provide for PTZs?

Question90: A camera lens with a low f-stop value of 1.2 will outperform a lens with a higher f-stop value due to which one of the parameters below?

Question91: If a customer wants a covert surveillance solution, they should choose

Question92: The video stream from the pole-mounted camera recording this scene has a continuously high bitrate (50 Mbit/s) even in H.265. Which is the most likely explanation?

Question93: Which is a benefit of using VLANs and IP subnets?

Question94: If your PoE switch is unable to supply sufficient power to the network device, which of the following should be used?

Question95: Which camera has the highest resolution?

Question96: 70 m (200 ft) from a light source the light level is 100 lux. What is the light level at 35 m?

Question97: Audio detection can be used

Question98: Two benefits of Axis HDTV cameras supporting the SMTPE standards are

Question99: A customer has strict requirements of 30 fps for recorded video. Which encoder choice would they select if they wanted three streams, per every one encoded channel, of D1 resolution video run at 30 fps in H.264?

Question100: What direction of movement (relative to the camera) do video analytics applications detect more easily?

Question101: Which network features are usually combined to prevent access to the surveillance network?

Question102: In clear weather. Axis specifies, in accordance with Johnson's criteria, an AXIS Q1921 with a 60 mm lens to have detection range of 1200 m (3900 ft) for a person. Based on this estimation which of the following is true?

Question103: AXIS Site Designer has which feature?

Question104: How can existing coaxial cable be leveraged when installing network cameras?

Question105: Low contrast between an object and its background

Question106: Which statement is true for broadcast network traffic?

Question107: This image represents an enlargement of an actual surveillance image. How could you improve the overall quality of the image? (Choose two)

Question108: Which one of the following camera parameters may become a limiting factor for the camera in delivering full frame rate?

Question109: If cameras are at risk of being exposed to a corrosive atmosphere, what type of housing should be used?

Question110: Which API is used to ensure interoperability between products from different vendors?

Question111: A convenience store needs a camera to cover the entrance. Identification is needed at 80 pixels per face. Given that the scene is 2 m (6 ft 7 in) wide, which of these resolutions is the minimum one needed?

Question112: Which feature in Axis cameras allows for a fixed box style camera to tell a PTZ camera to move to a preset?

Question113: Who should be responsible for documenting a video surveillance installation?