The correct first action for suspicious outbound traffic is to correlate the connections with firewall logs and endpoint telemetry. This is because a sudden surge of outbound connections to multiple IPs on port 443 from a single workstation often signals command-and-control (C2) activity or data exfiltration, and jumping to isolation without context risks destroying forensic evidence. On the Cisco CyberOps Associate 200-201 exam, this scenario tests your grasp of the NIST incident response process, specifically that analysis must precede containment; a common trap is choosing to immediately block the IPs or isolate the host, which bypasses the critical detection and analysis phase. Remember the memory tip: “Correlate before you isolate” — always gather the process name, parent process, and connection duration from logs first to confirm malicious intent before taking disruptive action.
200-201 Security Monitoring Practice Question
This 200-201 practice question tests your understanding of security monitoring. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 is monitoring network traffic and notices a sudden increase in outbound connections from a single workstation to multiple IP addresses on port 443 at regular intervals. The workstation is used for standard office applications. 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
✓
Correlate the connections with firewall logs and endpoint telemetry
Option A is correct because the sudden increase in outbound connections to multiple IPs on port 443 (HTTPS) from a single workstation could indicate command-and-control (C2) traffic, data exfiltration, or a compromised system. The first step should be to correlate these connections with firewall logs and endpoint telemetry to gather contextual evidence—such as process names, parent processes, and connection durations—before taking any disruptive action. This aligns with the NIST incident response process (Preparation, Detection & Analysis, Containment, Eradication, Recovery) where analysis precedes containment.
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.
✓
Correlate the connections with firewall logs and endpoint telemetry
Why this is correct
Correlation helps identify if the traffic is malicious or caused by legitimate software like updates or VoIP.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Immediately block all outbound traffic from the workstation
Why it's wrong here
Blocking without analysis could disrupt legitimate services and is not the first step.
✗
Escalate to the incident response team immediately
Why it's wrong here
Escalation should follow initial analysis; jumping to escalation may waste resources.
✗
Isolate the workstation from the network
Why it's wrong here
Isolation should be done only after confirming malicious activity, not as a first step.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the candidate's understanding of the incident response process by presenting a plausible but premature containment action (like isolation or blocking) as a distractor, when the correct first step is always to gather and correlate evidence to confirm the threat.
Detailed technical explanation
How to think about this question
Port 443 is used for HTTPS (TLS/SSL), which is commonly abused by malware to blend in with legitimate traffic, as the encrypted payload hides C2 commands or exfiltrated data. Tools like Wireshark or Zeek can analyze TLS handshake metadata (e.g., SNI, certificate details) to identify suspicious patterns, while endpoint telemetry from EDR solutions (e.g., Windows Event ID 4688 for process creation) can reveal the initiating process. In a real-world scenario, a sudden burst of outbound HTTPS connections at regular intervals (e.g., every 60 seconds) to diverse IPs is a classic indicator of a beaconing implant, such as those used by TrickBot or Cobalt Strike.
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: Correlate the connections with firewall logs and endpoint telemetry — Option A is correct because the sudden increase in outbound connections to multiple IPs on port 443 (HTTPS) from a single workstation could indicate command-and-control (C2) traffic, data exfiltration, or a compromised system. The first step should be to correlate these connections with firewall logs and endpoint telemetry to gather contextual evidence—such as process names, parent processes, and connection durations—before taking any disruptive action. This aligns with the NIST incident response process (Preparation, Detection & Analysis, Containment, Eradication, Recovery) where analysis precedes containment.
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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Question Discussion
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