350-701 Security Concepts Practice Question
A security analyst is reviewing logs and sees multiple failed login attempts from a single IP address, followed by a successful login. Which type of attack does this represent?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Brute-force attack
A brute-force attack involves repeated attempts to guess credentials, often automated, until successful.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
SQL injection
Why it's wrong here
SQL injection targets databases via input, not authentication logs.
- ✗
Man-in-the-middle attack
Why it's wrong here
MITM intercepts communications, not login attempts.
- ✓
Brute-force attack
Why this is correct
Multiple failed logins followed by success indicates password guessing.
- ✗
Phishing
Why it's wrong here
Phishing involves deceptive emails to trick users, not repeated login attempts.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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