CAS-005 · Question #163
CAS-005 Question #163: Real Exam Question with Answer & Explanation
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Question
Incident responders determine that a company email server was the first compromised machine in an attack. The server was infected by malware. The following are abbreviated headers from three emails that the incident responders could not confidently determine to be safe: Which of the following is the most likely reason the malware was delivered?
Options
- AAn attachment scan could not be completed.
- BThe DMARC security check failed.
- CRepeated emails were sent from the same address.
- DThe SPF check failed.
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