1_3_9 Section 1 – Attacks, Threats, and Vulnerabilities - 1.3 – Application Attacks - Race Conditions
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Questions and Answers

What is the term used to describe unexpected simultaneous occurrences in software development?

  • Race condition (correct)
  • Concurrency situation
  • Multi-execution anomaly
  • Parallel complication
  • Which type of attack involves taking advantage of race conditions by expecting changes to occur simultaneously?

  • Parallel breach
  • TOCTOU attack (correct)
  • Simultaneous intrusion
  • Concurrent exploitation
  • In the example provided, what amount does account A have after user 1 adds $50 to account B?

  • $100 (correct)
  • $150
  • $50
  • $200
  • What problem can occur if software is not designed to handle race conditions?

    <p>Data corruption</p> Signup and view all the answers

    What is the term for checking for changes in a system and applying modifications while being aware of concurrent changes?

    <p>Concurrent processing</p> Signup and view all the answers

    Why is it important for developers to plan for race conditions in their software?

    <p>To prevent unexpected outcomes</p> Signup and view all the answers

    What was the initial balance of account A before any transactions occurred?

    <p>$100</p> Signup and view all the answers

    Why did account A's balance decrease to $50?

    <p>User 2 removed $50 from account A without knowing it had already been removed.</p> Signup and view all the answers

    What caused the Mars rover Spirit to enter a reboot loop?

    <p>Corrupted file system during booting</p> Signup and view all the answers

    How did a race condition contribute to the Northeast Blackout of 2003?

    <p>It led to false alerts about power line failures</p> Signup and view all the answers

    What was the consequence of changing software settings too quickly on the radiation therapy machine?

    <p>Failure of software interlocks</p> Signup and view all the answers

    How did developers address the race condition in the Mars rover Spirit?

    <p>Instructed the rover to reboot into a limited safe mode</p> Signup and view all the answers

    What term is used to describe a situation in software development where multiple processes occur simultaneously unexpectedly?

    <p>Race condition</p> Signup and view all the answers

    In the provided example, what is the initial balance of account B before any transactions occur?

    <p>$100</p> Signup and view all the answers

    What is the major risk associated with not planning for race conditions in software development?

    <p>Security vulnerabilities</p> Signup and view all the answers

    Which attack takes advantage of race conditions by making changes while being aware that other changes may occur simultaneously?

    <p>Time-of-check to time-of-use (TOCTOU) attack</p> Signup and view all the answers

    In the scenario described, how does user 2's check balance operation impact the subsequent transactions?

    <p>User 2's operation has no effect on the subsequent transactions</p> Signup and view all the answers

    What could be a consequence of not addressing race conditions in software involving financial transactions like the account transfer example provided?

    <p>Loss of data integrity</p> Signup and view all the answers

    What was the outcome of User 2 removing an additional $50 from account A without knowing that a previous $50 had already been removed?

    <p>Account A's balance remained at $50 and Account B's balance increased to $200.</p> Signup and view all the answers

    In the context of the text, what is a notable example of a race condition occurring in the field of space exploration?

    <p>The Mars rover Spirit entering a reboot loop due to file system corruption during reboots.</p> Signup and view all the answers

    How did a race condition contribute to the Northeast Blackout of 2003?

    <p>It limited the number of alerts shown to technicians during power line failures.</p> Signup and view all the answers

    What was the critical consequence of a deadly race condition with a radiation therapy machine in the 1980s?

    <p>Patients received higher than normal radiation doses, resulting in injuries and fatalities.</p> Signup and view all the answers

    What was the specific outcome when User 2 added $50 to account B after User 1 had already added $50?

    <p>Account A decreased to $50 while Account B increased to $200.</p> Signup and view all the answers

    What was the consequence of the Spirit rover experiencing a race condition leading it into a reboot loop?

    <p>It led to a series of reboots preventing normal operations on Mars.</p> Signup and view all the answers

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