IP Camera & PoE Networking Flashcards

A PoE switch port is rated at 15.4W (802.3af). An IP camera requires 18W. What is the correct solution?

Answer: Replace the switch with one supporting 802.3at (PoE+)

802.3at (PoE+) delivers up to 30W per port, sufficient for cameras requiring more than the 15.4W limit of 802.3af.

What does ONVIF Profile S standardize for IP surveillance cameras?

Answer: PTZ control, video streaming, and event handling

ONVIF Profile S standardizes interoperability for basic IP camera functions including video streaming, PTZ control, and event handling.

Which subnet mask allows up to 254 usable host addresses on a single network segment?

Answer: 255.255.255.0

A /24 mask (255.255.255.0) provides 256 addresses minus 2 reserved, yielding 254 usable hosts.

An IP camera is not discovered by the VMS after installation. The camera has a self-assigned 169.254.x.x address. What is the most likely cause?

Answer: DHCP is unavailable and no static IP was configured

A 169.254.x.x (APIPA) address indicates the camera failed to obtain an IP from DHCP and has no static address configured.

What is the purpose of the RTSP protocol in an IP camera system?

Answer: Streaming live video from cameras to clients

RTSP (Real Time Streaming Protocol) is used to establish and control media sessions for live video streaming from IP cameras.

A technician needs to prevent an IP camera VLAN from accessing the corporate LAN. Which device feature should be configured?

Answer: Inter-VLAN routing ACL or firewall rule

An ACL or firewall rule applied to inter-VLAN routing blocks traffic from the camera VLAN from reaching the corporate network.

What is the maximum cable length specified by TIA-568 for a horizontal Cat5e/Cat6 run in a structured cabling system?

Answer: 90 meters

TIA-568 specifies a maximum 90-meter horizontal cable run, with 10 meters reserved for patch cords, totaling a 100-meter channel.