CCTV CCTV Network & IP Camera Configuration 1 — Questions and Answers
Question 1: Which protocol is most commonly used for streaming video from IP cameras?
- RTSP (Correct answer)
- FTP
- SMTP
- SNMP
Correct answer: RTSP
RTSP (Real Time Streaming Protocol) is the standard protocol used to deliver live video streams from IP cameras to recorders and viewing clients.
Question 2: What does ONVIF stand for in the IP camera industry?
- Open Network Video Interface Forum (Correct answer)
- Optical Network Video Integration Framework
- Online Network Visual Interface Format
- Open Node Video Installation Foundation
Correct answer: Open Network Video Interface Forum
ONVIF (Open Network Video Interface Forum) is an industry standard that ensures interoperability between IP-based security products from different manufacturers.
Question 3: What technology allows IP cameras to receive power and data through a single Ethernet cable?
- PoE (Power over Ethernet) (Correct answer)
- HDMI
- Coaxial multiplexing
- RS-485
Correct answer: PoE (Power over Ethernet)
Power over Ethernet (PoE) delivers electrical power alongside data through standard Cat5e/Cat6 cables, eliminating the need for separate power supplies at each camera.
Question 4: What is the default TCP port used by RTSP for IP camera communication?
- 554 (Correct answer)
- 80
- 443
- 8080
Correct answer: 554
RTSP uses TCP port 554 by default for establishing and controlling media streaming sessions between cameras and clients.
Question 5: What is the primary purpose of a VLAN in a CCTV IP network?
- To isolate CCTV traffic from other network traffic for security and performance (Correct answer)
- To increase camera resolution
- To extend cable distances beyond 100 meters
- To compress video streams automatically
Correct answer: To isolate CCTV traffic from other network traffic for security and performance
VLANs (Virtual Local Area Networks) segment CCTV traffic onto its own logical network, preventing unauthorized access from general office networks and reducing broadcast congestion.
Question 6: What does a DHCP server provide to IP cameras when they connect to the network?
- An automatically assigned IP address (Correct answer)
- A video compression codec
- A remote viewing password
- A firmware update
Correct answer: An automatically assigned IP address
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on the network, including IP cameras, removing the need for manual configuration.
CCTV CCTV Network & IP Camera Configuration 1
Which protocol is most commonly used for streaming video from IP cameras?