Cybersecurity & Digital Surveillance Flashcards
7 cards from real CSP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Cybersecurity & Digital Surveillance flashcards as text
What is the purpose of 802.1X authentication in a surveillance network?
Answer: To control which devices are allowed to connect to the network
IEEE 802.1X is a port-based network access control standard that authenticates devices before allowing them to connect to a network, preventing unauthorized devices from joining.
An attacker floods a surveillance NVR with traffic, making it unable to record video. This is an example of which attack?
Answer: Denial of Service (DoS) attack
A Denial of Service attack overwhelms a target system with excessive traffic or requests, rendering it unavailable for legitimate use such as recording video.
Which of the following best describes 'two-factor authentication' (2FA) as applied to surveillance system access?
Answer: Requiring both a password and a second verification factor such as a token or biometric
Two-factor authentication requires users to present two distinct types of credentials — typically something they know (password) and something they have or are — to verify identity.
In digital video surveillance, what is a 'replay attack'?
Answer: An attacker capturing and retransmitting valid video or authentication data to deceive the system
In a replay attack, a malicious actor captures legitimate network transmissions and retransmits them to trick systems into accepting them as valid, such as reusing an authentication token.
What is the role of a Security Information and Event Management (SIEM) system in a surveillance infrastructure?
Answer: To collect, correlate, and analyze security event logs from across the network in real time
A SIEM aggregates log data from multiple systems, correlates events, and generates alerts to help security teams detect and respond to threats across the network.
Why is it critical to disable Universal Plug and Play (UPnP) on routers used in surveillance networks?
Answer: UPnP can allow devices to automatically open ports, exposing cameras to the internet without administrator knowledge
UPnP can automatically configure port forwarding, potentially exposing surveillance devices directly to the internet without explicit administrator approval, creating serious security risks.
Which encryption standard is currently recommended for protecting data at rest on surveillance video storage systems?
Answer: AES-256 (Advanced Encryption Standard)
AES-256 is the current industry-recommended symmetric encryption algorithm for protecting sensitive data at rest, providing strong security with a 256-bit key length.