Alarms are physical security devices that use sensors such as laser beams or touch sensors to detect movement or intrusion. These devices are used to alert the user of any unauthorized activity in the area. Alarms can also be used in combination with CCTV cameras to provide a comprehensive security system.
Question 2
Which one of the following is a disadvantage of Water Cooled System?
Options:
A.
All components are located inside the CRAC
B.
Condenser water piping loops long distances
C.
Usage of the building's condenser water is less expensive than chilled water
D.
Introduces an additional source of liquid
Answer:
D
Explanation:
Explanation:
Water cooled systems introduce an additional source of liquid, which can be a potential source of contamination and damage to the IT equipment. Additionally, water cooled systems require more maintenance than air cooled systems and are more expensive to install due to the additional cost of the cooling tower, piping, and pumps.
Question 3
What is a Data Center?
Options:
A.
A building or portion of a building whose primary function is to research new data.
B.
A room in a building dedicated to monitoring data and information.
C.
A building or a portion of a building whose primary function is to house a computer room and its related support areas
D.
A building or a portion of a building where debugging takes place
Answer:
C
Explanation:
Explanation:
A building or a portion of a building whose primary function is to house a computer room and its related support areas. A Data Center is a secure, temperature-controlled environment that houses computer systems, equipment, and associated components. It is typically used to store, process, and distribute large amounts of data and information. Data Centers typically include server racks, storage arrays, network switches, firewalls, and other components necessary for the operation of computer systems.