Protective barriers

          What are protective barriers, and what should they entail?(1 paragraph 5lines and heading required for every question) What is an entry-control station?(1 paragraph 5lines and heading required for every question) What mitigation procedures can be used to ensure the resiliency of protective barriers?(1 paragraph 5lines and heading required for every question) What is the significance of access and corrective controls?(1 paragraph 5lines and heading required for every question) Describe and explain some of the hardening methods of entry control.(1 paragraph 5lines and heading required for every question)