Objective 2.4

SY0-701

Given a scenario, analyze indicators of malicious activity

Objective 2.4 sits in Threats, Vulnerabilities, and Mitigations, which carries 22% of the Security+ exam. The questions below are original, written from the official objective title above, and each explanation cites the CompTIA page it rests on.

Objective title verbatim from the official objectives. CompTIA exam page ↗

A worked example

Shown solved, with the whole explanation open: this is what every question here carries.

2-4Threats, Vulnerabilities, and Mitigations

In blind (inferential) SQL injection, which characteristic distinguishes it from inband injection?

Data is retrieved through a completely separate communication channel.This describes out-of-band injection, where a separate channel like email carries the results.
Query results are displayed directly within the web application page.This describes inband injection, where results appear directly on the page.
The database sends results via email to an external tester address.This is an example of out-of-band exfiltration, not the inferential class.
The attacker reconstructs data by observing the server's response behavior.Correct · your answerCorrect: blind injection relies on inference from server behavior rather than direct data return.

Correct.

Checked against cheatsheetseries.owasp.org, July 2026

Concept

SQL injection is classified into inband, out-of-band, and inferential (blind) categories based on how results are obtained.

Why D

Blind injection involves no direct data transfer; the attacker infers results by watching how the server behaves to different requests.

Source

Inferential or Blind: there is no actual transfer of data, but the tester is able to reconstruct the information by sending particular requests and observing the resulting behavior of the DB Server.

OWASP Injection Prevention Cheat Sheet, checked July 2026
#sql injection#application attacks#blind sqli

Now you: objective 2.4 questions

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Sample question 1 of 3

2-4Threats, Vulnerabilities, and Mitigations

A company relies on a productive, closed source, third-party application with a known SQL injection flaw that cannot be modified. What is the most appropriate remediation approach?

Sample question 2 of 3

2-4Threats, Vulnerabilities, and Mitigations

An attacker submits a username containing wildcard and special characters into a login form, causing the application's directory query to return every user record. Which attack occurred?

Sample question 3 of 3

2-4Threats, Vulnerabilities, and Mitigations

An application lets users choose the sort column for a report, and that value is placed directly into the ORDER BY clause where bind variables cannot be used. Which defense applies?

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Read the sources

These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.

More objectives in Threats, Vulnerabilities, and Mitigations