easyMultiple ChoiceObjective-mapped
CAS-004 Practice Question: Based on the exhibit, what type of attack is…
Exhibit
Refer to the exhibit. Log entry: 2025-02-14 09:23:45 VPN login FAILED from IP 192.0.2.10 user admin 2025-02-14 09:23:46 VPN login FAILED from IP 192.0.2.10 user admin 2025-02-14 09:23:47 VPN login FAILED from IP 192.0.2.10 user admin 2025-02-14 09:23:48 VPN login SUCCESS from IP 192.0.2.10 user admin
Based on the exhibit, what type of attack is indicated?
⚠ Common exam trap
CompTIA CASP+ often tests the distinction between brute-force and replay attacks by presenting logs with repeated failed logins, leading candidates to confuse the 'replay' of credentials with the 'replay' of captured packets, but replay attacks require a valid captured session token, not failed authentication attempts.
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
The exhibit shows a high number of failed authentication attempts (e.g., 500+ in a short window) against a single user account, which is characteristic of a brute-force attack. This attack systematically tries multiple password combinations to gain unauthorized access, often targeting a specific username or service. The log entries indicate repeated login failures without any evidence of intercepted traffic or session manipulation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Brute-force attack
Why this is correct
Multiple failed attempts then success is characteristic of brute-force.
- ✗
Man-in-the-middle
Why it's wrong here
MITM attacks involve intercepting communications, not repeated login attempts.
- ✗
Denial of service
Why it's wrong here
DoS floods resources, not targeted login attempts.
- ✗
Replay attack
Why it's wrong here
Replay attacks capture and retransmit valid data, not brute-force.
Go deeper
Related to this question
About these practice questions
This CAS-005 question is part of Courseiva's 968-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CAS-005 exam.