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Exam : SAIR 3X0-104
Title : level 1 security.ethics and privacy


1. An administrator has implemented a chain of router packet filtering rules on a major system server. A user has sent a packet to the network protected by the packet filter. The packet originated from 190.15.65.0/24 and is destined for 212.220.0.0/16. Considering the chain of packet filtering rules below, what will happen to the packet and why?
rule source destination action
A 190.15.60.0/24 212.220.0.0/16 deny
B 212.220.0.0/16 190.15.65.0/24 deny
C 190.15.0.0/16 212.220.0.0/16 permit
D 0.0.0.0/0 0.0.0.0/0 deny
A. The packet will be permitted because no rules apply.
B. The packet will be permitted because it matches rule C.
C. The packet will be denied because all sources and destinations are blocked by rule D.
D. The packet will be denied because the packet matches rule A.
Answer: B

2. Tom is a system administrator for Linux ServerA. Tom is running a Perl script that will initiate a connection request from ServerA to ServerB without completing the network connection. This is done multiple times until ServerB can no longer communicate on the network. What kind of attack has Tom initiated?
A. Spam blast
B. TCP bomb
C. Denial of Service
D. Internet Worm
Answer: C

3. Which of the following describes the contents of the /var/log/btmp log file?
A. It stores only the users' real names and their login times.
B. It contains a list of failed login attempts in a format similar to the wtmp log file.
C. It contains all successful superuser login attempts.
D. It contains a list of all users currently logged in to the system, along with their IP addresses.
Answer: B

4. A large server has many services running, including FTP, NFS, and NIS. It is hard for the administrator to find security holes in the services' configuration files, and this leads to possible security risks. Which of the following tools could the administrator use to check these services for security holes?
A. NTOP
B. LogCheck
C. SAINT
D. Tripwire
Answer: C

5. Tom, a system administrator for ServerA, is interested in security and has written a script that scans the password file for unauthorized promotion to root status. Which of the following should the script check? (Choose two.)
A. A UID number that has been set to one
B. A UID number that has been set to zero
C. An account with the GID set to
D. A user with a non-standard shell (i.e., "/bin/runasroot")
E. An account with the UID set to
Answer: BD

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