GCIH Question #68: Real Exam Question with Answer & Explanation

The correct answer is A: For preventing unauthorized access to a system.. A password-protected screen saver locks the workstation after a period of inactivity, requiring re-authentication before access is granted again.

Incident Response & Cyber Kill Chain

Question

What is the purpose of configuring a password protected screen saver on a computer?

Options

AFor preventing unauthorized access to a system.
BFor preventing a system from a Denial of Service (DoS) attack.
CFor preventing a system from a social engineering attack.
DFor preventing a system from a back door attack.

Explanation

A password-protected screen saver locks the workstation after a period of inactivity, requiring re-authentication before access is granted again.

Common mistakes.

B. A screen saver has no effect on network-level Denial of Service attacks because DoS targets service availability over the network, not local workstation login state.
C. Social engineering attacks manipulate people psychologically to divulge information or grant access; a screen saver lock cannot stop a user from being deceived into unlocking their own machine.
D. A back door attack exploits a hidden access mechanism already present in software or the OS; a screen saver lock does not remove or block existing back doors installed on the system.

Concept tested. Physical access control via screen saver lock

Reference. https://learn.microsoft.com/en-us/windows/security/threat-protection/security-policy-settings/interactive-logon-machine-inactivity-limit

Topics

#physical security#screen saver lockout#unauthorized access prevention

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