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NO.1 .How many bits is Source Port Number in TCP Header packet?
A. 48
B. 32
C. 64
D. 16
Answer: D
NO.2 .Your company uses Cisco routers exclusively throughout the network. After securing the routers to
the best of your knowledge, an outside security firm is brought in to assess the network security. Although
they found very few issues, they were able to enumerate the model, OS version, and capabilities for all
your Cisco routers with very little effort. Which feature will you disable to eliminate the ability to enumerate
this information on your Cisco routers?
A. Simple Network Management Protocol
B. Broadcast System Protocol
C. Cisco Discovery Protocol
D. Border Gateway Protocol
Answer: C
NO.3 .After attending a CEH security seminar, you make a list of changes you would like to perform on your
network to increase its security. One of the first things you change is to switch the RestrictAnonymous
setting from 0 to 1 on your servers. This, as you were told, would prevent anonymous users from
establishing a null session on the server. Using Userinfo tool mentioned at the seminar, you succeed in
establishing a null session with one of the servers. Why is that?
A. RestrictAnonymous must be set to "2" for complete security
B. RestrictAnonymous must be set to "3" for complete security
C. There is no way to always prevent an anonymous null session from establishing
D. RestrictAnonymous must be set to "10" for complete security
Answer: A
NO.4 .In a virtual test environment, Michael is testing the strength and security of BGP using multiple routers
to mimic the backbone of the Internet. This project will help him write his doctoral thesis on "bringing down
the Internet". Without sniffing the traffic between the routers, Michael sends millions of RESET packets to
the routers in an attempt to shut one or all of them down. After a few hours, one of the routers finally shuts
itself down. What will the other routers communicate between themselves?
A. More RESET packets to the affected router to get it to power back up
B. RESTART packets to the affected router to get it to power back up
C. The change in the routing fabric to bypass the affected router
D. STOP packets to all other routers warning of where the attack originated
Answer: C
NO.5 .An "idle" system is also referred to as what?
A. Zombie
B. PC not being used
C. Bot
D. PC not connected to the Internet
Answer: A
NO.6 .Why are Linux/Unix based computers better to use than Windows computers for idle scanning?
A. Windows computers are constantly talking
B. Linux/Unix computers are constantly talking
C. Linux/Unix computers are easier to compromise
D. Windows computers will not respond to idle scans
Answer: A
NO.7 .Why are Linux/Unix based computers better to use than Windows computers for idle scanning?
A. Windows computers will not respond to idle scans
B. Linux/Unix computers are constantly talking
C. Linux/Unix computers are easier to compromise
D. Windows computers are constantly talking
Answer: D
NO.8 .Your company's network just finished going through a SAS 70 audit. This audit reported that overall,
your network is secure, but there are some areas that needs improvement. The major area was SNMP
security. The audit company recommended turning off SNMP, but that is not an option since you have so
many remote nodes to keep track of. What step could you take to help secure SNMP on your network?
A. Change the default community string names
B. Block all internal MAC address from using SNMP
C. Block access to UDP port 171
D. Block access to TCP port 171
Answer: A