You receive an email with the following message: Hello Steve, We are having technical difficulty in restoring user database record after the recent blackout. Your account data is corrupted. Please logon to the SuperEmailServices.com and change your password. http://www.supermailservices.com@0xde.0xad.0xbe.0xef/support/logon.htm If you do not reset your password within 7 days, your account will be permanently disabled locking you out from our e-mail services. Sincerely, Technical Support SuperEmailServices From this e- mail you suspect that this message was sent by some hacker since you have been using their e- mail services for the last 2 years and they have never sent out an e-mail such as this. You also observe the URL in the message and confirm your suspicion about 0xde.0xad.0xbde.0xef which looks like hexadecimal numbers. You immediately enter the following at Windows 2000 command prompt: Ping0xde.0xad.0xbe.0xef You get a response with a valid IP address. What is the obstructed IP address in the e-mail URL?
A.
222.173.190.239
B.
233.34.45.64
C.
54.23.56.55
D.
199.223.23.45
I choose A
See commentary ” Current approaches to assessing the degree of airway narrowing in central airway obstruction. ” in volume 12 on page 109.