Palo Alto Networks Cybersecurity Entry-Level Technician (PCCET) — Question 62

What is the definition of a zero-day threat?

Answer options

• A. The amount of time it takes to discover a vulnerability and release a security fix
• B. The period between the discovery of a vulnerability and development and release of a patch
• C. The day a software vendor becomes aware of an exploit and prevents any further hacking
• D. A specific day during which zero threats occurred

Correct answer: B

Explanation

The correct answer is B, as it accurately describes the time frame between discovering a vulnerability and the subsequent development and release of a patch. Option A incorrectly focuses on the duration of discovery and fix release rather than the vulnerability itself. Option C misrepresents the concept by implying prevention occurs only after awareness, and option D is irrelevant as it suggests a day with no threats, which does not define a zero-day threat.