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Question 28/42
is the degree to which a system or component is operational and accessibility when required for use.
Correct Answer: D
Availability is the degree to which a system, product or component is operational and accessible when required for use. It is one of the attributes of reliability, which is the ability of a system or component to perform its required functions under stated conditions for a specified period of time. Availability can be calculated as the ratio of the expected value of the uptime (the time when the system is functional) to the total time (uptime plus downtime) of a system or component. Availability can also be influenced by factors such as maintainability, fault tolerance, redundancy, diagnostics, and logistics.
References: EPI Data Centre Professional (CDCP) Preparation Guide, page 8; Availability - Wikipedia; Reliability - ISO 25000.
References: EPI Data Centre Professional (CDCP) Preparation Guide, page 8; Availability - Wikipedia; Reliability - ISO 25000.
- Question List (42q)
- Question 1: Does unplanned downtime of a data centre have an impact on t...
- Question 2: What is the most cost-effective way to avoid EMF issues with...
- Question 3: By what are magnetic fields of the type 'H' or 'B' created?...
- Question 4: What is the current recommended temperature for ICT equipmen...
- Question 5: A fire extinguisher in the data centre is found which is cla...
- Question 6: Which one of the following is a device that uses circulating...
- Question 7: Cost of Downtime can be classified as....
- Question 8: What should be taken into consideration when using patch cab...
- Question 9: Sprinkler heads used in computer rooms activate at what temp...
- Question 10: What is a potential risk when using floor mounted cool air d...
- Question 11: Which is the most damaging type of floor load?...
- Question 12: A UPS has an internal battery tester, do you still need to s...
- Question 13: Which one of the following is the last stage in Stages of Co...
- Question 14: When having two non-synchronized power sources, the ATS / ST...
- Question 15: Which one of the following is an Objective of Data Center Fi...
- Question 16: Which one of the following is an AC Power Quality Anomaly?...
- Question 17: Which source is used in fiber cable to transmit data?...
- Question 18: Which Class of Fire involves combustible metals or combustib...
- Question 19: Which one of the following is an Audible Signaling and Notif...
- Question 20: Which type of Humidifier suspends quartz lamps over an open ...
- Question 21: Which type of copper wire is used for grounding the racks to...
- Question 22: When dealing with glass door racks, cod air is injected into...
- Question 23: Which type of Humidifier rapidly vibrates waster to create a...
- Question 24: Which Class of Fires involves energized electrical equipment...
- Question 25: Which Class of Fires involves cooking appliances?...
- Question 26: Does shielded twisted pair network cabling provide protectio...
- Question 27: Looking from within the Computer room, what should the door-...
- Question 28: is the degree to which a system or component is operational ...
- Question 29: Can Electro Magnetic Fields (EMF) cause data centre failures...
- Question 30: Which formula can be used to define risk?...
- Question 31: Do I need to check the local standards if I already comply t...
- Question 32: What type of heal does ICT equipment generate?...
- Question 33: The temperature and humidity values indicated on the display...
- Question 34: What is the main advantage of busbar trunking compared to st...
- Question 35: Which one of the following is an example of Direct Cost?...
- Question 36: What should be considered when implementing hot- or cold-ais...
- Question 37: Which type of Fire Detection Device is recommended for prote...
- Question 38: Which one of the following represents the three elements (ox...
- Question 39: What is the main difference between an Environmental Monitor...
- Question 40: systems are designed specifically to protect the structure o...
- Question 41: What should be a consideration when having casters (rollers/...
- Question 42: Which one of the following is a Natural Disaster?...
