2.7 Flashcards
Explain the importance of physical security controls.
Also called a mantrap. Is composed of two closely spaced doors that require the user to card through one and then the other sequentially. Makes it nearly impossible to trail through a doorway undetected.
Access control vestibules
The practice of using specialized patterns, colors, and materials to conceal or disguise industrial equipment, machinery, infrastructure, or facilities within their surroundings.
Industrial camouflage
When two different people have to perform respective tasks that are both necessary for an action to occur. A means of checks and balances.
Two-person integrity/control
Is the measurement of biological attributes or processes with the goal of identification of a party possessing those measurements.
Biometrics
Prevents attackers from infecting a device with malware or stealing data through a USB port.
USB data blocker
Is a sensor method that provides a remote means of monitoring everything from water leaks to humidity problems.
Moisture detection
Is a device or component that detects and measures physical phenomena or environmental changes and converts them into electrical signals or digital data for analysis, monitoring, or control purposes.
Sensors
Is a sensor method that listens for specific sounds.
Noise detection
Are sensors that provide a signal at a specified distance. The most common application of these are card readers connected to doors.
Proximity reader
Provide the same utility as computer logs for a security investigation. They act as a record of what was observed at specific points in time.
Visitor logs
An enclosure of conductive material that is grounded. Is used to shield against electromagnetic interference (EMI).
Faraday cages
Is a term used to describe the physical and logical separation of a network from all other networks. This separation is designed to prevent unauthorized data transfers to and from the network.
Air gap
Used in networking to indicate a zone where access controls are not as strict as the inside, or as open as the outside; it’s a place of joint cooperation and controlled risk.
Screened subnet (previously
known as demilitarized zone)
The objective is to prevent any physical damage to the physical layer portion of the system.
Protected cable distribution
Cold air is produced by HVAC equipment, and this cold air is sent to servers. The servers shed their heat, making air hot, which is removed. The aisles keep the hot air from mixing with the cold air, making the cooling efficient.
Hot and cold aisles