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Exam N10-008 topic 1 question 210 discussion

Actual exam question from CompTIA's N10-008
Question #: 210
Topic #: 1
[All N10-008 Questions]

A Fortune 500 firm is deciding on the kind of data center equipment to install given its five-year budget outlook. The Chief Information Officer is comparing equipment based on the life expectancy of different models. Which of the following concepts BEST represents this metric?

  • A. MTBF
  • B. MTTR
  • C. RPO
  • D. RTO
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Suggested Answer: A 🗳️
by chael88 at Sept. 8, 2022, 4:27 p.m.

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JakeCharles
Highly Voted 1 year, 3 months ago
Selected Answer: A
Mean Time Between Failures (MTBF) represents the life expectancy of equipment, it is a metric that predicts the time interval between two failure events of a device. It is typically measured in hours and it is used to predict the reliability of a device over time. MTTR (Mean Time To Recovery), RPO (Recovery Point Objective), and RTO (Recovery Time Objective) are related to disaster recovery and business continuity, they don't represent the life expectancy of equipment. MTTR is the average time to repair a failed component, RPO is the maximum acceptable period in which data might be lost from an IT service due to a major incident, and RTO is the target time within which an IT service should be restored after a disaster or disruption.
upvoted 19 times
JakeCharles
1 year, 3 months ago
RPO: A company that stores sensitive customer data may have a RPO of zero, meaning that it cannot afford to lose any data in the event of a disaster. This company would likely implement a backup and disaster recovery plan that includes real-time replication of data across multiple sites or use a cloud-based disaster recovery service. RTO: A company that operates a critical e-commerce website may have an RTO of one hour, meaning that it needs to be able to restore its website within one hour in the event of a disaster. This company would likely implement a disaster recovery plan that includes the use of a disaster recovery site with a pre-configured infrastructure, pre-tested procedures and with a quick response team.
upvoted 3 times
JakeCharles
1 year, 3 months ago
RPO (Recovery Point Objective) is the point in time to which data must be recovered, it represents the maximum acceptable amount of data loss. For example, if a company's RPO is 2 hours, it means that it is acceptable for the company to lose up to 2 hours of data in the event of a disaster. RTO (Recovery Time Objective) is the amount of time that it takes to restore the system after a disaster. It represents the amount of time that a system or service can be down before it causes harm to the business. For example, if a company's RTO is 4 hours, it means that the company needs to be able to restore its service within 4 hours in the event of a disaster.
upvoted 3 times
Eumousten
1 year, 1 month ago
Great example...
upvoted 1 times
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Mehsotopes
Most Recent 5 months, 1 week ago
Selected Answer: A
Metrics of Availability of network devices: Mean Time To Repair (MTTR) = Measures average time it takes to repair a network device when it breaks (everything breaks eventually). Mean Time Between Failures (MTBF) = Measures average time between when failures occur on a device. Metrics of availability of the network: Recovery Point Objective (RPO) = Acceptable time relapsed since most recent reliable backup. Recovery Time Objective (RTO) =Acceptable amount of time for restoring a network in the event of a disaster.
upvoted 2 times
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famco
1 year ago
Shouldn't MTTF also be considered as an answer (it is not in the list)
upvoted 1 times
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Iamboolean
1 year, 5 months ago
Selected Answer: A
MTBF is a crucial maintenance metric to measure performance, safety, and equipment design, especially for critical or complex assets, like generators or airplanes. It is also used to determine the reliability of an asset.
upvoted 1 times
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chael88
1 year, 7 months ago
Mean time between failures (MTBF) is the average time between system breakdowns.
upvoted 1 times
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