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    Question

    Which of the following statements best describes a "trap door" in the context of computer security?

    A A trap door is a method used to encrypt data to protect it from unauthorized access. Correct Answer Incorrect Answer
    B A trap door is a secret entry point into a program that allows access without normal authentication methods. Correct Answer Incorrect Answer
    C A trap door is a software bug that causes a program to behave unexpectedly, often leading to a crash. Correct Answer Incorrect Answer
    D A trap door is a hardware component designed to secure physical access to a computer system. Correct Answer Incorrect Answer
    E A trap door is a type of malware that replicates itself across networks without user intervention. Correct Answer Incorrect Answer

    Solution

    A "trap door" (also known as a "backdoor") in computer security refers to a hidden or secret entry point in a program or system that provides access to the system without going through normal authentication methods. This entry point is intentionally created to allow unauthorized access to the system or software, often by those who designed or modified it. Trap doors can be used for legitimate purposes, such as for developers to access systems for maintenance, but they can also be exploited maliciously to bypass security measures. They are different from software bugs or errors that might cause a program to fail or behave unexpectedly.

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