- A
Delivery
Why wrong: Delivery involves transferring the payload, not regular callbacks.
- B
Command and Control
Beaconing is a hallmark of C2.
- C
Actions on Objectives
Why wrong: Actions on objectives is the final phase, like exfiltration.
- D
Installation
Why wrong: Installation is after exploitation; beaconing is later.
Question 518 of 1,000
200-201 Network Intrusion Analysis Practice Question
This 200-201 practice question tests your understanding of network intrusion analysis. 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.
An analyst reviews PCAP traffic and sees a series of HTTP POST requests from an internal host to an external IP at exactly 60-second intervals. The payload size is consistent. Which phase of the Cyber Kill Chain does this activity most likely represent?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
✓
Command and Control
The consistent 60-second intervals and uniform payload size of HTTP POST requests from an internal host to an external IP are classic indicators of beaconing activity. In the Cyber Kill Chain, this behavior aligns with the Command and Control (C2) phase, where an established foothold communicates with an external C2 server to receive instructions or exfiltrate data. The use of HTTP POST mimics normal web traffic to evade detection, a common technique in C2 channels.
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.
- ✗
Delivery
Why it's wrong here
Delivery involves transferring the payload, not regular callbacks.
- ✓
Command and Control
Why this is correct
Beaconing is a hallmark of C2.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Actions on Objectives
Why it's wrong here
Actions on objectives is the final phase, like exfiltration.
- ✗
Installation
Why it's wrong here
Installation is after exploitation; beaconing is later.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between beaconing (C2) and data exfiltration (Actions on Objectives), where candidates mistakenly associate any external HTTP POST with data theft rather than recognizing the periodic pattern as command-and-control signaling.
Detailed technical explanation
How to think about this question
Beaconing in C2 often uses HTTP POST with a fixed interval (e.g., 60 seconds) and a consistent payload size (e.g., 512 bytes) to maintain stealth and avoid triggering threshold-based alerts. Tools like Cobalt Strike or Metasploit use jitter to randomize intervals, but a fixed interval is still common in simpler malware. Real-world detection leverages NetFlow or Zeek logs to spot periodic connections to suspicious IPs, often correlated with threat intelligence feeds.
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.
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FAQ
Questions learners often ask
What does this 200-201 question test?
Network Intrusion Analysis — This question tests Network Intrusion Analysis — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Command and Control — The consistent 60-second intervals and uniform payload size of HTTP POST requests from an internal host to an external IP are classic indicators of beaconing activity. In the Cyber Kill Chain, this behavior aligns with the Command and Control (C2) phase, where an established foothold communicates with an external C2 server to receive instructions or exfiltrate data. The use of HTTP POST mimics normal web traffic to evade detection, a common technique in C2 channels.
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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This 200-201 practice question is part of Courseiva's free Cisco 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 200-201 exam.
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