200-201 Network Intrusion Analysis Practice Question
An analyst filters PCAP with 'tcp.stream eq 0' and sees an interactive shell session with commands like 'whoami', 'ls -la', 'cd /etc'. The session originated from an HTTP POST to a web shell. Which type of attack is this?
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
✓
Reverse shell
A web shell allows remote command execution over HTTP, essentially a reverse shell.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Reverse shell
Why this is correct
Interactive shell over TCP is a reverse shell.
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DNS tunnelling
Why it's wrong here
DNS tunnelling uses DNS protocol, not interactive shell.
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SQL injection
Why it's wrong here
SQL injection manipulates databases, not shell commands.
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Cross-site scripting
Why it's wrong here
XSS runs in browser, not server shell.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.