A company has contracted with a network security firm to help identify the vulnerabilities of the corporate network. The firm sends a team to perform penetration tests to the company network. Why would the team use packet sniffers?

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Question:
A company has contracted with a network security firm to help identify the vulnerabilities of the corporate network. The firm sends a team to perform penetration tests to the company network. Why would the team use packet sniffers?

to detect installed tools within files and directories that provide threat actors remote access and control over a computer or network
to detect any evidence of a hack or malware in a computer or network
to probe and test the robustness of a firewall by using specially created forged packets
to capture and analyze packets within traditional Ethernet LANs or WLANs

Exam with this question: CCNA 3 v7.0 Final Exam Answers