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

Learn how price changes affect consumer utility and how to calculate compensating and equivalent variations.

Grasp the understanding of demand functions and how price influences demand.

Comprehend how consumer's surplus changes with price changes.

Understand the concept of reservation price and income effects on consumer choice.

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Definitions:

Variable++

Variable++ denotes the increment operator in programming languages like C and C++, which increases the value of the variable by one.

Cast Operator

A unary operator that forces one data type to be converted into another data type.

Assignment Operator

In programming, an operator that assigns a value to a variable, commonly represented by the "=" symbol.

Lvalue

A location value, representing an object that occupies some identifiable location in memory (such as a variable), which can be assigned a value.