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SPLK-5001 · Question #5

Upon investigating a report of a web server becoming unavailable, the security analyst finds that the web server's access log has the same log entry millions of times: 147.186.119.200…

The correct answer is B. Distributed Denial of Service Attack. Option B is correct because the scenario describes a volumetric attack designed to overwhelm a web server and deny legitimate users access - the defining characteristic of a Distributed Denial of Service (DDoS) attack. The millions of identical HTTP GET requests to the /login/…

Threat Detection and Alerting

Question

Upon investigating a report of a web server becoming unavailable, the security analyst finds that the web server's access log has the same log entry millions of times:

147.186.119.200 - - [28/Jul/2023:12:04:13 -0300] "GET /login/ HTTP/1.0" 200 3733 What kind of attack is occurring?

Options

  • ADenial of Service Attack
  • BDistributed Denial of Service Attack
  • CCross-Site Scripting Attack
  • DDatabase Injection Attack

How the community answered

(27 responses)
  • A
    4% (1)
  • B
    81% (22)
  • C
    4% (1)
  • D
    11% (3)

Explanation

Option B is correct because the scenario describes a volumetric attack designed to overwhelm a web server and deny legitimate users access - the defining characteristic of a Distributed Denial of Service (DDoS) attack. The millions of identical HTTP GET requests to the /login/ endpoint flood the server's resources until it becomes unavailable; while the log shows one IP, real-world DDoS attacks use botnets with many coordinated sources, and this exam scenario reflects that scale and intent.

Why the distractors are wrong:

  • A (DoS): A basic Denial of Service attack originates from a single source and smaller scale; the volume here implies distributed coordination, making DDoS the better fit in exam context.
  • C (XSS): Cross-Site Scripting injects malicious scripts into web pages to target users' browsers, not to overwhelm a server with traffic.
  • D (Database Injection): SQL/Database injection attacks manipulate query input to access or corrupt data - they don't involve flooding a server with repeated GET requests.

Memory tip: Think "D for Distributed, D for Devastating scale." If a server goes down from a flood of traffic across many sources, that's DDoS. If the attack manipulates data or scripts, look to C or D instead.

Topics

#DDoS#web server logs#access log analysis#attack identification

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