A Web Server, Which Is Configured to Use TLS with AES-GCM-256

question 866

Multiple Choice

A web server, which is configured to use TLS with AES-GCM-256, SHA-384, and ECDSA, recently suffered an information loss breach. Which of the following is MOST likely the cause?

• A) Insufficient key bit length
• B) Weak cipher suite
• C) Unauthenticated encryption method
• D) Poor implementation

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Definitions:

Coefficient Of Determination

A statistical measure, often symbolized as R^2, that represents the proportion of the variance in the dependent variable predictable from the independent variable(s).

Correlation Coefficient

A measure that determines the degree to which two variables' movements are associated, ranging from -1 (perfect negative correlation) to +1 (perfect positive correlation).

Prediction Interval

An estimate of an interval in which future observations will fall, with a certain degree of confidence, based on a predictive model.

Linear Regression

A mathematical approach that models how a dependent variable changes based on one or several independent variables, by adapting a linear equation to the data collected.