Linux utilizes what two different wildcard characters at the command line?

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Indicate whether the statement is true or false

Your organization's network was recently the target of an attack. Fortunately, the new system you installed took action and refused traffic from the source before you even had a chance to respond. What system did you install?

A. An authorization system B. An intrusion detection system C. A logging system D. An intrusion prevention system E. An authentication system