200-201 Security Monitoring Practice Question
A security analyst is using Wireshark to capture traffic from a network segment. They want to see only packets that contain the string 'password' in the payload. Which type of filter should they apply?
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
✓
Display filter using 'frame contains "password"'
Display filters are applied after capture to filter packets based on criteria. A capture filter would limit packets captured, but the question implies after capture. The analyst wants to display only packets with 'password' in payload, which is a display filter.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Display filter using 'frame contains "password"'
Why this is correct
Display filters can use 'contains' to search payload.
- ✗
Display filter using 'tcp.port == 80'
Why it's wrong here
This filters by port, not payload content.
- ✗
Capture filter using 'port 80'
Why it's wrong here
This would only capture HTTP traffic, not filter for password.
- ✗
Capture filter using 'tcp contains password'
Why it's wrong here
Capture filters use BPF syntax, not 'contains'.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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