hn is the IT manager at a mid$-$sized company. He has been tasked with improving the physical security of the company's server room.

hich of the following actions would be the MOST effective in enhancing the physical security of the server room?

Implementing a sign$-$in$/$sign$-$out sheet for the server room

Implementing a policy that requires all employees to wear ID badges

Installing a biometric access control system

Placing a CCTV camera outside the server room