The correct first action is to investigate the source IP for malicious activity. This step is foundational because security monitoring requires context before any response; the repeated failed VPN login attempts could indicate a brute-force attack, a misconfigured client, or even a legitimate user with a forgotten password. Blocking the IP or escalating immediately risks disrupting legitimate access or wasting resources on a false positive. On the Cisco CyberOps Associate 200-201 exam, this question tests your understanding of the incident response process and the principle of verification before action—a common trap is choosing “block the IP” or “disable the account” too early. Remember the memory tip: “Investigate before you isolate” to avoid jumping to containment without evidence.
200-201 Security Monitoring Practice Question
This 200-201 practice question tests your understanding of security monitoring. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A security analyst notices repeated failed login attempts from a single IP address to the company's VPN gateway. Which action should the analyst take first?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Investigate the source IP for malicious activity.
Option C is correct because the first step in security monitoring is to investigate the source IP to determine if the failed login attempts are part of a brute-force attack, a misconfigured client, or a legitimate user error. Without context, blocking the IP or escalating prematurely could disrupt legitimate access or waste resources. The analyst should gather evidence (e.g., logs, timestamps, user accounts targeted) before taking further action.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Escalate to the incident response team immediately.
Why it's wrong here
Escalation without initial investigation may waste resources.
✗
Block the IP at the firewall immediately.
Why it's wrong here
Blocking without investigation may block legitimate users and does not confirm malicious intent.
✓
Investigate the source IP for malicious activity.
Why this is correct
Investigation helps determine the nature of the failed attempts before taking action.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Ignore the activity as it may be a user error.
Why it's wrong here
Ignoring could allow a potential attack to succeed.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the principle that investigation must precede action, tempting candidates to choose immediate blocking (Option B) because it seems proactive, but the correct first step is always to gather context to avoid disrupting legitimate traffic.
Detailed technical explanation
How to think about this question
Failed login attempts generate authentication logs (e.g., RADIUS accounting, syslog with PAM messages) that the analyst should review for patterns such as username enumeration or rapid-fire attempts (e.g., >5 attempts per minute). In a real-world scenario, the source IP might be a compromised host within a trusted partner network, so blocking it without investigation could sever a legitimate business relationship. Tools like fail2ban or SIEM correlation rules can automate initial triage, but manual verification of the source IP's reputation (e.g., via threat intelligence feeds) is essential before any blocking action.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Security Monitoring — This question tests Security Monitoring — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Investigate the source IP for malicious activity. — Option C is correct because the first step in security monitoring is to investigate the source IP to determine if the failed login attempts are part of a brute-force attack, a misconfigured client, or a legitimate user error. Without context, blocking the IP or escalating prematurely could disrupt legitimate access or waste resources. The analyst should gather evidence (e.g., logs, timestamps, user accounts targeted) before taking further action.
What should I do if I get this 200-201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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