What type of security measure involves checking appearance and authorization before allowing entry?

The chosen answer highlights an essential aspect of security procedures that focus on verifying individuals before they gain access to a secured area. In the context of security measures, access/clearance involves assessing both the appearance and the authorization of individuals seeking entry. This often includes checking identification, credentials, or other forms of verification that demonstrate the individual is permitted to enter a certain location.

This approach ensures that only those with the proper clearance can access sensitive or restricted areas, thereby providing a layer of security that helps prevent unauthorized access and potential security threats. Ensuring that personnel adhere to established criteria for entry not only protects property and assets but also enhances overall safety within the environment being secured.

Other options, while related to different aspects of security, do not encapsulate the specific combination of appearance and authorization checks that define access/clearance procedures. Random inspection might involve checking items without prior notice but does not necessarily focus on individual authorization. Surveillance monitoring pertains more to passive observation rather than actively verifying who can enter a space. Performance assessment usually refers to evaluating the effectiveness of security measures or personnel, rather than directly managing access control.