Answer Posted / rajkumar
Systems, predominantly computing and computer-based systems,
which tolerate undesired changes in their internal structure
or external environment. Such changes, generally referred to
as faults, may occur at various times during the evolution
of a system, beginning with its specification and proceeding
through its utilization. Faults that occur during
specification, design, implementation, or modification are
called design faults; those occurring during utilization are
referred to as operational faults, The use of fault
tolerance techniques is based on the premise that a complex
system, no matter how carefully designed and validated, is
likely to contain residual design faults and to encounter
unpreventable operational faults.
Generally, fault tolerance techniques attempt to prevent
lower-level errors (caused by faults) from propagating into
system failures. By using various types of structural and
informational redundancy, such techniques either mask a
fault (no errors are propagated to the faulty subsystem's
output) or detect a fault (via an error) and then effect a
recovery process which, if successful, prevents a system
failure. In the case of a permanent internal fault, the
recovery process usually includes some form of structural
reconfiguration (for example, replacement of a faulty
subsystem with a spare or use of an alternate program) which
prevents the fault from causing further errors. Typically, a
fault-tolerant system design will incorporate a mix of fault
tolerance techniques which complement the techniques used
for fault prevention
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
NSV type probe stands for
what effects a surging can produce in the compressor
Describe the function of Accumulator into the Pump
what are procedure of sox-nox calibration
How works weighfeeders in cement industry? what is the working principle?
How the sizing of the analog signal cable is calculate?
What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.
explain key exchanges in all security modes WPA,WPA2,TLS?
What is the procedure of calibration of Load cell?
How RAL(Rotary air lock)works in cement industry?
how u choose thermowell lenght n pnumatic C/v size?
I want to buy a seal kit of a pneumatic power cylinder.But I don't know it's specification.So please help me to know its specification.
What is the constant voltage unit?
what happen if i increase height of displacer type LT.accuracy or sensitivity are affected.why?
How to convert mmWc(mili meter water colam) to tph(ton per hour)?
