CCTV CCTV Network & IP Camera Configuration 3

Question 1

What is the purpose of MAC address filtering on a CCTV network switch?

Accepted Answer

To allow only pre-approved devices to connect to the network

Answer

MAC address filtering restricts network access to only devices whose hardware addresses are whitelisted, preventing unauthorized cameras or devices from joining the CCTV network.

Question 2

What is multicast streaming and when is it used in CCTV systems?

Accepted Answer

Sending one video stream to multiple clients simultaneously without duplicating bandwidth

Answer

Multicast allows a single camera stream to be delivered to multiple viewing stations simultaneously using one stream, conserving network bandwidth compared to multiple unicast connections.

Question 3

What cybersecurity best practice should always be applied to new IP cameras before deployment?

Accepted Answer

Change the default username and password

Answer

Factory default credentials are publicly known and widely exploited, so changing them immediately during setup is the most critical step to prevent unauthorized access.

Question 4

What is the role of a managed network switch in a professional IP CCTV installation?

Accepted Answer

To provide VLAN segmentation, QoS, and PoE management for cameras

Answer

A managed switch gives installers granular control over VLANs, bandwidth prioritization, PoE power budgets, and port monitoring, which are essential for large professional CCTV deployments.

Question 5

Which H.265 advantage over H.264 is most relevant when designing storage for an IP CCTV system?

Accepted Answer

H.265 achieves roughly 50% smaller file sizes at equivalent video quality

Answer

H.265 (HEVC) compression reduces storage requirements by approximately 50% compared to H.264 at the same resolution and quality, significantly lowering drive costs in large systems.

CCTV - Certified CCTV Operator Practice Test

CCTV - Certified CCTV Operator Practice Test

CCTV CCTV Network & IP Camera Configuration 3