CompTIA Network+ Practice Test

Which of the following is an example of a vulnerability type?

1. Data encryption

2. Data injection

3. Network monitoring

4. Data backup

The correct answer is: Data injection

Data injection is classified as a vulnerability type because it refers to a security flaw in an application that allows an attacker to send unwanted data to the system, intending to gain unauthorized access or disrupt its normal functionality. This could manifest in several ways, such as SQL injection attacks where malicious SQL code is inserted into a query, potentially compromising the integrity and confidentiality of the database. Understanding this vulnerability is crucial for network security professionals, as it highlights the need for secure coding practices and implementing input validation measures to protect against such threats. In contrast, data encryption, network monitoring, and data backup serve as security measures or strategies rather than vulnerabilities. Data encryption protects sensitive information from unauthorized access. Network monitoring involves observing network traffic to detect and respond to anomalies. Data backup ensures data availability and recovery in case of loss, but does not itself represent a vulnerability.