CST Network Security & Cybersecurity for Surveillance Flashcards
6 cards from real CST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CST Network Security & Cybersecurity for Surveillance flashcards as text
Which protocol is recommended for encrypting video streams transmitted over an IP surveillance network?
Answer: RTSP over TLS (RTSPS)
RTSPS (RTSP over TLS) encrypts the video stream to prevent interception on IP surveillance networks.
What is the primary purpose of placing surveillance cameras and NVRs on a separate VLAN?
Answer: To isolate surveillance traffic and limit unauthorized access
A dedicated VLAN isolates surveillance devices from the general network, reducing the attack surface and preventing unauthorized access.
Which of the following is the BEST practice when setting up default credentials on new IP cameras?
Answer: Change default usernames and passwords immediately
Default credentials are publicly known and must be changed immediately to prevent unauthorized access to surveillance devices.
What does a network intrusion detection system (NIDS) do in a surveillance environment?
Answer: Monitors network traffic for suspicious or malicious activity
A NIDS monitors network packets in real time and alerts administrators to potential intrusions or anomalous behavior.
Which port should be closed or filtered on surveillance network devices if Telnet is not required?
Answer: Port 23
Telnet operates on port 23 and transmits data in plain text, making it a security risk that should be disabled if not needed.
What security measure ensures that only authorized devices can connect to a surveillance network switch port?
Answer: Port security / 802.1X authentication
802.1X port-based network access control authenticates devices before allowing them onto the network switch port.