QUESTION: 57 Topic 2, Volume B

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 lage 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 responds to your ICMP pings; definitely not the number of hosts you were expecting. Why did this ping sweep only produce a few responses?

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

Answer(s): C

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QUESTION: 58 Topic 2, Volume B

Meyer Electronics Systems just recently had a number of laptops stolen out of their office. On these laptops contained sensitive corporate information regarding patents and company strategies. A month after the laptops were stolen, a competing company was found to have just developed products that almost exactly duplicated products that Meyer produces. What could have prevented this information from being stolen from the laptops?

SDW Encryption
EFS Encryption
DFS Encryption
IPS Encryption

Answer(s): B

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QUESTION: 59 Topic 2, Volume B

How many possible sequence number combinations are there in TCP/IP protocol?

320 billion
32 million
4 billion
1 billion

Answer(s): C

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QUESTION: 60 Topic 2, Volume B

George is the network administrator of a large Internet company on the west coast. Per corporate policy, none of the employees in the company are allowed to use FTP or SFTP programs without obtaining approval from the IT department. Few managers are using SFTP program on their computers. Before talking to his boss, George wants to have some proof of their activity.
George wants to use Ethereal to monitor network traffic, but only SFTP traffic to and from his network. What filter should George use in Ethereal?

src port 22 and dst port 22
src port 23 and dst port 23
net port 22
udp port 22 and host 172.16.28.1/24

Answer(s): A

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QUESTION: 57 Topic 2, Volume B

QUESTION: 58 Topic 2, Volume B

QUESTION: 59 Topic 2, Volume B

QUESTION: 60 Topic 2, Volume B