A very useful resource for passively gathering information about a target company is:
A.
Host scanning
B.
Whois search
C.
Traceroute
D.
Ping sweep
Explanation:
A, C & D are "Active" scans, the question says: "Passively"
Get 50% Discount on All Your Purchases
at PrepAway.com - Latest Exam Questions
This is ONE TIME OFFER
50%
I have the same idea. B