CompTIA Security+ Question J-35

Environmental control measures include which of the following?

A. Access list
B. Lighting
C. Motion detection
D. EMI shielding

Answer: D

Explanation:
Environmental controls include HVAC, Fire Suppression, EMI Shielding, Hot and Cold Aisles, Environmental monitoring as well as Temperature and Humidity controls.

CompTIA Security+ Question H-37

Which of the following fire suppression systems is MOST likely used in a datacenter?

A. FM-200
B. Dry-pipe
C. Wet-pipe
D. Vacuum

Answer: A

Explanation:
FM200 is a gas and the principle of a gas system is that it displaces the oxygen in the room, thereby removing this essential component of a fi re. in a data center is is the preferred choice of fire suppressant.

CompTIA Security+ Question G-46

When implementing fire suppression controls in a datacenter it is important to:

A. Select a fire suppression system which protects equipment but may harm technicians.
B. Ensure proper placement of sprinkler lines to avoid accidental leakage onto servers.
C. Integrate maintenance procedures to include regularly discharging the system.
D. Use a system with audible alarms to ensure technicians have 20 minutes to evacuate.

Answer: B

Explanation:
Water-based systems can cause serious damage to all electrical equipment and the sprinkler lines in a fire suppression control system should be placed in such a way so as not to leak onto computers when it do get activated because it works with overhead nozzles.

CompTIA Security+ Question F-76

The datacenter manager is reviewing a problem with a humidity factor that is too low. Which of the following environmental problems may occur?

A. EMI emanations
B. Static electricity
C. Condensation
D. Dry-pipe fire suppression

Answer: B

Explanation:
Humidity control prevents the buildup of static electricity in the environment. If the humidity drops much below 50 percent, electronic components are extremely vulnerable to damage from electrostatic shock.

CompTIA Security+ Question C-16

Which of the following is an effective way to ensure the BEST temperature for all equipment within a datacenter?

A. Fire suppression
B. Raised floor implementation
C. EMI shielding
D. Hot or cool aisle containment

Answer: D

Explanation:
There are often multiple rows of servers located in racks in server rooms. The rows of servers are known as aisles, and they can be cooled as hot aisles and cold aisles. With a hot aisle, hot air outlets are used to cool the equipment, whereas with cold aisles, cold air intake is used to cool the equipment. Combining the two, you have cold air intake from below the aisle and hot air outtake above it, providing constant circulation. This is a more effective way of controlling temperature to safeguard your equipment in a data center.

CompTIA Security+ Question B-97

Which of the following is an attack vector that can cause extensive physical damage to a datacenter without physical access?

A. CCTV system access
B. Dial-up access
C. Changing environmental controls
D. Ping of death

Answer: C

Explanation:
Environmental systems include heating, air conditioning, humidity control, fire suppression, and power systems. All of these functions are critical to a well-designed physical plant. A computer room will typically require full-time environmental control. Changing any of these controls (when it was set to its optimum values) will result in damage.

CompTIA Security+ Question B-83

A company that purchased an HVAC system for the datacenter is MOST concerned with which of the following?

A. Availability
B. Integrity
C. Confidentiality
D. Fire suppression

Answer: A

Explanation:
Availability means simply to make sure that the data and systems are available for authorized users. Data backups, redundant systems, and disaster recovery plans all support availability; as does environmental support by means of HVAC.

CompTIA Network+ Question B-40

An organization is moving to a new datacenter. During the move, several technicians raise concerns about a system that could potentially remove oxygen from the server room and result in suffocation. Which of the following systems are they MOST likely discussing?

A. Fire suppression
B. Mantraps at the entry
C. HVAC
D. UPS and battery backups

Correct Answer: A

Explanation:
Fire suppression systems are often deployed in server rooms to prevent a fire destroying all the I.T. equipment. Different fire suppression systems work in different
ways. Obviously a fire suppression system that sprays water onto the fire is no good for a server room as the water would do as much damage as the fire. A common fire suppression system used in server rooms is one that suppresses the fire by starving it of oxygen. One way the oxygen can be removed from the server room is to fill the server room with an inert gas such as carbon dioxide.

CompTIA Network+ Question A-89

Which of the following would be the BEST addition to a business continuity plan that would protect business from a catastrophic event such as a fire, tornado, or earthquake?

A. UPS and battery backups
B. Fire suppression systems
C. Building generator
D. Hot sites or cold sites
E. NAS and tape backups

Correct Answer: D

CompTIA Network+ Question A-41

A company is selecting a fire suppression system for their new datacenter and wants to minimize the IT system recovery period in the event of a fire. Which of the following is the best choice for the fire suppression system?

A. Portable extinguishers
B. Wet Pipe
C. Clean Gas
D. Dry Pipe

Correct Answer: C