Hackers are not limited to attack vectors such as network vulnerabilities and social engineering. one way hackers can intercept transmissions is through emi emissions. the government studied this technique, and based on this study, a style of room was created to combat emi emanations.
what is the room type called?

Tempest room

Explanation:

Tempest room is defined as the type of room created with the shielding and layers to reduce the heavy signal strength to great extent.It is build with the high security shield towards the electromagnetic(EM) emissions to secure the information and data centers.

b and c ( ip address and port number)