* D ("grnail.com") is a suspicious domain that resembles "gmail.com."
* The high "bytes out" value (525,984 bytes) indicates potential data exfiltration.
* Attackers often use typosquatting (e.g., "grnail.com" instead of "gmail.com") to trick users into visiting malicious sites.
Why Not Other Options?
* A (Netflix, B YouTube, C TikTok) # Large downloads, but expected behavior for streaming sites.
* E (Google Translate) # Low data volume, no exfiltration risk.
* F (Office.com) # Microsoft service, no indication of malicious activity.
Reference: CompTIA CySA+ CS0-003, Chapter 5: "Threat Intelligence and Threat Detection," Section:
"Analyzing Malicious Domains and Network Traffic."