Threats and Additional Threats in Information Security
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Questions and Answers

What is a common threat related to mobile code execution?

  • Object reuse vulnerability
  • Dynamic email risks (correct)
  • JavaScript security
  • Garbage collection in Java
  • Which type of small programs written in Java are usually subject to a sandbox?

  • Mobile agents
  • Scripting languages
  • Active X controls
  • Java applets (correct)
  • What is an issue that Java applets are meant to address?

  • Garbage collection in Java
  • Object reuse vulnerability
  • JavaScript security (correct)
  • Dynamic email risks
  • Which of the following poses a significant risk in emails?

    <p>Dynamic email scripts</p> Signup and view all the answers

    What type of control is suggested for emails with active scripts or links?

    <p>Restrictions on email functions</p> Signup and view all the answers

    Which of the following is more likely to be affected by Object reuse vulnerability?

    <p>Garbage collection mechanisms</p> Signup and view all the answers

    What is a buffer overflow?

    <p>A temporary area for data storage where extra data can overwrite other buffers</p> Signup and view all the answers

    How can a buffer-overflow attack be exploited by a hacker?

    <p>By flooding a memory space reserved for a program</p> Signup and view all the answers

    Which type of buffer overflow is more common among attackers?

    <p>Stack-based buffer overflows</p> Signup and view all the answers

    What is the main difference between stack-based and heap-based buffer overflows?

    <p>Stack-based overflows are more difficult to execute</p> Signup and view all the answers

    Which type of buffer overflow attack is considered difficult to execute and less common?

    <p>Heap-based buffer overflow</p> Signup and view all the answers

    In a buffer overflow attack, what does the extra data sometimes contain that could trigger specific actions?

    <p>Specific instructions for actions intended by a hacker</p> Signup and view all the answers

    What is the purpose of garbage collection in Java?

    <p>To efficiently manage memory use</p> Signup and view all the answers

    What is a trap door in a program?

    <p>A security feature that allows bypassing normal access procedures</p> Signup and view all the answers

    Which of the following is a risk associated with incomplete parameter check and enforcement?

    <p>Malformed data input can bypass security checks</p> Signup and view all the answers

    What is the main concern regarding object reuse vulnerability?

    <p>Sensitive residual data exposure</p> Signup and view all the answers

    Which type of covert channel communicates by modifying a stored object?

    <p>Storage Channels</p> Signup and view all the answers

    What precaution should be taken to ensure confidential information is protected from being re-assigned without being cleared?

    <p>Erasing information immediately after use</p> Signup and view all the answers

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