An Organization Has Setup Auto Scaling with ELB

question 890

Multiple Choice

An organization has setup Auto Scaling with ELB. Due to some manual error, one of the instances got rebooted. Thus, it failed the Auto Scaling health check. Auto Scaling has marked it for replacement. How can the system admin ensure that the instance does not get terminated?

• A) Update the Auto Scaling group to ignore the instance reboot event
• B) It is not possible to change the status once it is marked for replacement
• C) Manually add that instance to the Auto Scaling group after reboot to avoid replacement
• D) Change the health of the instance to healthy using the Auto Scaling commands

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Definitions:

Margin of Error

An expression of the range within which the true value of a statistic is expected to fall, based on sample observations.

Standard Error

A measure of how much sample means of a given data set are expected to vary, serving as a statistical indicator of precision.

Margin of Error

A measure of the range of values below and above the sample statistic in a confidence interval; it quantifies uncertainty in estimates.

Standard Error

A measure of the variability or dispersion of a sample statistic from the population parameter.