After passively scanning the network of Department of Defense (DoD), you switch over to active scanning to identify live hosts on their network. DoD is a large organization and should respond to any number of scans. You start an ICMP ping sweep by sending an IP packet to the broadcast address. Only five hosts respond to your ICMP pings; definitely not the number of hosts you were expecting. Why did this ping sweep only produce a few responses?

• A.Only Unix and Unix-like systems will reply to this scan
• B.Only Windows systems will reply to this scan
• C.Only IBM AS/400 will reply to this scan
• D.A switched network will not respond to packets sent to the broadcast address

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George is performing security analysis for Hammond and Sons LLC. He is testing security vulnerabilities of their wireless network. He plans on remaining as "stealthy" as possible during the scan. Why would a scanner like Nessus is not recommended in this situation?

• A.There are no ways of performing a "stealthy" wireless scan
• B.Nessus is not a network scanner
• C.Nessus is too loud
• D.Nessus cannot perform wireless testing

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In the context of file deletion process, which of the following statement holds true?

• A.The longer a disk is in use, the less likely it is that deleted files will be overwritten
• B.Secure delete programs work by completely overwriting the file in one go
• C.When files are deleted, the data is overwritten and the cluster marked as available
• D.While booting, the machine may create temporary files that can delete evidence

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An employee is attempting to wipe out data stored on a couple of compact discs (CDs) and digital video discs (DVDs) by using a large magnet. You inform him that this method will not be effective in wiping out the data because CDs and DVDs are ______________ media used to store large amounts of data and are not affected by the magnet.

• A.anti-magnetic
• B.optical
• C.logical
• D.magnetic

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Why is it a good idea to perform a penetration test from the inside?

• A.It is easier to hack from the inside
• B.To attack a network from a hacker's perspective
• C.It is never a good idea to perform a penetration test from the inside
• D.Because 70% of attacks are from inside the organization

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