Final answer:
A PC technician should recommend biometric access control to prevent tailgating as it ensures that entry is granted only to individuals with authorized biometric credentials, which is more effective than the other options.
Step-by-step explanation:
To prevent tailgating in a security context, a PC technician should recommend a security technique that ensures that only authorized personnel can enter a secure area and that tracks when and where they do so. Considering the options provided:
- Biometric access control is an effective method to prevent unauthorized access as it requires unique physical characteristics to permit entry.
- Security guards can physically monitor and control access, preventing tailgating by manually checking credentials.
- RFID badges allow for electronic monitoring of who is accessing the facility, but unless combined with another system, they may not be effective against tailgating if an unauthorized person follows closely behind an authorized one.
- CCTV surveillance can document access but does not actively prevent unauthorized entry through tailgating without real-time monitoring and response protocols.
Therefore, the technician should recommend Biometric access control for its ability to prevent unauthorized access most effectively, potentially in combination with other measures like CCTV surveillance for comprehensive security.