A Junior Administrator of a Physical Server Receives Log Messages

question 1

Multiple Choice

A junior administrator of a physical server receives log messages indicating the out-of-memory killer has been active. All memory slots are in use on the motherboard, but additional disk space is available. Space has been allocated for a swap file. Which of the following should the administrator use to reduce the output of memory messages?

• A) free : swapoff / swapfile ; swapon -a
• B) mkswap /swapfile; swapon -a
• C) fallocate -l 2G /swapfile && swapon -a
• D) echo "1" > /proc/meninfo ; swapon / swapfile

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Definitions:

Sample Proportion

The ratio of members in a statistical sample that have a particular attribute to the total number of members in the sample.

Null Hypothesis

The null hypothesis is a statement used in statistics that proposes there is no significant difference or effect, serving as the starting point for hypothesis testing.

Alternative Hypothesis

A statistical hypothesis that proposes a difference or effect, contrasting the null hypothesis.

Standard Error

A measure of the variation or dispersion of sample means from the true population mean.