Why is the claim that "product X is 99.99% reliable" inaccurate?
A. No tier level has been stated.
B. 99.99% is theoretically impossible.
C. A timeframe has not been provided.
D. Reliability cannot be quantified to four significant digits.
Which three timeframes are included in MTTR? (Choose three.)
A. The time to repair the system
B. The time to diagnose a failure
C. The time to assess the financial impact
D. The time to write the failure resolution report
E. The time to get the service technician onsite
What is the largest cause of downtime in data centers?
A. Sabotage
B. Human error
C. Natural disasters
D. Equipment failure
What is an indirect cost of downtime that is difficult to quantify?
A. Legal fees
B. Lost revenues
C. Idle employees
D. Damaged brand perception
During a power outage, a retail store is likely to exhibit which cost of downtime profile?
A. Cost of downtime per hour remains the same.
B. Cost of downtime per hour increases with time.
C. Cost of downtime per hour decreases with time.
D. Cost of downtime per hour is exponential with time.
Which two are characteristics of an agile data center? (Choose two.)
A. Provision a UPS module with a different power capacity.
B. Change out plug types when new IT equipment is installed.
C. Design for "worse case" capacity to prevent future downtime.
D. Have N+1 redundancy in part of the data center and 2N in another part based on equipment criticality.
What represents a direct cost of downtime when an outage occurs in the data center?
A. Brand perception is damaged.
B. Revenue streams are slowed or stopped.
C. Data center personnel need to be retrained.
D. Software needs to be upgraded to latest versions.
What is the difference between reliability and availability?
A. MTTR is only factored into reliability.
B. MTBF is only factored into availability.
C. Reliability is composed of MTBF and MTTR.
D. Availability is composed of MTBF and MTTR.
A co-location company invested huge amounts of capital to develop a solid, high security infrastructure and planned for "worse case" in terms of capacity.
What are two possible reasons this company failed? (Choose two.)
A. They tied up unnecessary capital.
B. The power capacity forecast was underestimated.
C. They could not adapt to changing customer needs.
D. They ran out of floor space to host additional clients.
What represents the optimum scenario for investing in network-critical physical infrastructure (NCPI) technologies?
A. NCPI cost is low and the risk/cost of downtime is high.
B. NCPI cost is high and the risk/cost of downtime is low.
C. The projected cost of downtime has not yet been established.
D. Oversize the initial NCPI investment to minimize the possibility of downtime.
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