A User, Jsmith, Needs Access to Database Files Located on a Server

question 102

Multiple Choice

A user, jsmith, needs access to database files located on a server. Which of the following will add jsmith to the "dba" group and preserve existing group memberships?

• A) usermod -a -G dba jsmith
• B) usermod -g dba jsmith
• C) useradd -g dba jsmith
• D) groupmod dba -u jsmith

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Definitions:

Sample

A selected subset of individuals or items from a larger population used to estimate characteristics of the whole population.

Sampling Error

The error caused by observing a sample instead of the whole population, leading to potential differences between the sample statistic and population parameter.

Population Mean

The average of all the data points in a population.

Simple Random Samples

A sampling method in which every individual or item from a population has an equal chance of being selected.