Information Systems and Computer Applications CLEP Prep Practice Exam

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Prepare for the CLEP Information Systems & Computer Applications Exam with flashcards and multiple-choice questions. Each question comes with hints and explanations to help you succeed. Master the content and pass your exam!

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What type of attack prevents users from accessing a system?

  1. SQL injection

  2. Spyware

  3. Distributed denial of service

  4. Cross-site scripting

The correct answer is: Distributed denial of service

A Distributed Denial of Service (DDoS) attack floods a system with an overwhelming amount of traffic, causing it to crash and preventing users from accessing it. This attack works by exploiting vulnerabilities in a system's resources, like its network bandwidth or server capacity. Options A, B, and D all involve exploiting specific applications or vulnerabilities, but they do not overwhelm the system's resources like a DDoS attack does.