While Views Promote Security by Restricting User Access to Data

question 160

Multiple Choice

While views promote security by restricting user access to data, they are not adequate security measures because:

• A) an unauthorized person may gain access to a view through experimentation.
• B) all users can read any view.
• C) a view's data does not change.
• D) views are not possible to create in most DBMS.

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Definitions:

Weighting Scheme

A method of assigning different weights or importance to various elements or criteria in order to calculate a composite score or make decisions.

Exponential Smoothing

A technique used in time-series analysis to smooth data and forecast by giving greater weight to more recent observations.

Exponential Smoothing Forecast

A time series forecasting method that applies decreasing weights to older data.

Previous Forecast Value

The forecast figure from the immediately preceding time period, used as a point of reference or comparison for current forecasting activities.