CST CST Network Security & Cybersecurity for Surveillance

Question 1

Which protocol is recommended for encrypting video streams transmitted over an IP surveillance network?

Accepted Answer

RTSP over TLS (RTSPS)

Answer

RTSPS (RTSP over TLS) encrypts the video stream to prevent interception on IP surveillance networks.

Question 2

What is the primary purpose of placing surveillance cameras and NVRs on a separate VLAN?

Accepted Answer

To isolate surveillance traffic and limit unauthorized access

Answer

A dedicated VLAN isolates surveillance devices from the general network, reducing the attack surface and preventing unauthorized access.

Question 3

Which of the following is the BEST practice when setting up default credentials on new IP cameras?

Accepted Answer

Change default usernames and passwords immediately

Answer

Default credentials are publicly known and must be changed immediately to prevent unauthorized access to surveillance devices.

Question 4

What does a network intrusion detection system (NIDS) do in a surveillance environment?

Accepted Answer

Monitors network traffic for suspicious or malicious activity

Answer

A NIDS monitors network packets in real time and alerts administrators to potential intrusions or anomalous behavior.

Question 5

Which port should be closed or filtered on surveillance network devices if Telnet is not required?

Accepted Answer

Port 23

Answer

Telnet operates on port 23 and transmits data in plain text, making it a security risk that should be disabled if not needed.

(CST) Certified Surveillance Technician Practice Test