填空题MTBF(Mean Time Between Failure):()。

填空题
MTBF(Mean Time Between Failure):()。

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D) 【解析】系统的可靠性通常用平均无故障时间( MTBF)和平均故障修复时间( MTTR)来表示,MTTR是Mean Time To Repair的缩写,指修复一次故障所需要的时间。

系统可靠性的简单度量是平均故障间隔时间(MTBF),其计算公式是(9)。(MTTF: Mean Time To Failure; MTTR: Mean Time To Repair)A.MTTF+MTTRB.MTTF-MTTRC.MTTR-MTTFD.MTTF×MTTR

bike on time yesterday. I mean to give it 77

计算机的“可用性”主要取决于MTBF(Mean Time Between Failure)和MTTR(Mean Time To Repair),一台计算机的可用性比较高是指A.MTBF和MTTR都高B.MTBF和MTTR都低C.MTBF高,MTTR低D.MTBF低,MTTR高

系统可靠性的简单度量是平均故障间隔时间(MTBF),其计算公式是(23);软件可用性是指在某个给定时间点上程序能够按照需求执行的概率,其定义为(24)。(MTTF: Mean Time To Failure:MTTR:Mean Time To Repair)A.MTTF+MTTRB.MTTF-MTTRC.MTTR-MTTFD.MTTF×MTTR

软件可用性是指在某个给定时间点上程序能够按照需求执行的概率,其定义为(4)。(MTTF: Mean Time To Failure; MTTR: Mean Time To Repair)A.B.C.D.

软件可用性是指在某个给定时间点上程序能够按照需求执行的概率,其定义为(11)。(MTTF:Mean Time To Failure;MTTR:Mean Time To Repair)A.可用性=×100%B.可用性=×100%C.可用性=×100%D.可用性=×100%

通常使用平均修复时间MTTR(Mean Time to Repair)和平均故障间隔时间MTBF(Mean Time Between Failure)这两个指标来评价产品或系统的可靠性。 A.错误B.正确

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The maximum difference between mean time and apparent time is ______.A.equal to the longitude expressed in time unitsB.about 16 minutesC.the difference between the GHA of mean sun and the first point of AriesD.15°of arc

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MSTP设备运行的平均无故障时间(MTBF-Mean Time Between Failure)应不小于()。A、50000小时B、60000小时C、80000小时D、100000小时

MTTR(Mean Time To Repair):()。

MTBF(Mean Time Between Failure):()。

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单选题The maximum difference between mean time and apparent time is ().Aequal to the longitude expressed in time unitsBabout 16 minutesCthe difference between the GHA of mean sun and the first point of AriesD15°of arc

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判断题通常使用平均修复时间MTTR(Mean Time to Repair)和平均故障间隔时间MTBF(Mean Time Between Failure)这两个指标来评价产品或系统的可靠性。A对B错

单选题Which of the following is the definition of CAS latency?()A CAS latency is the ratio between the column access time and the clock cycle time.B CAS latency is the ratio between the row access time and the clock cycle time.C CAS latency is the ratio between the column access time and the data burst transfer time.D CAS latency is the ratio between the row access time and the data burst transfer time.

单选题A mean sun is used as the reference for solar time for three reasons. Which reason is NOT a cause for use of a mean sun?()AThe motion of the apparent sun is along the eclipticBMeasurement of time is along the celestial equatorCThe speed of the Earth's revolution is not constantDThere are variations in the Earth's rotational speed

单选题When there are cordial relations between the two countries, we mean there exists a ______ relationship between them.AfriendlyBhostileCfertileDcomplicated

单选题The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with().AAn atomic time standardBDaylight Savings TimeCEastern Standard TimeDGreenwich Mean Time

单选题When tuning a network module what is the purpose of the grace period?()AIt defines the maximum permissible time period between missed heartbeats before a failure is detectedBIt defines the time period to wait to activate the network module after starting the cluster managerCIt defines the period between detecting a missed heartbeat and initiating a network down, allowing thenetwork to stabilizeDIt defines the time period during which, after a network failure was detected, further network failures of thesame type will be ignored

填空题MTTR(Mean Time To Repair):()。