QUESTION: 157

While examining audit logs, you discover that people are able to telnet into the SMTP server on port
25. You would like to block this, though you do not see any evidence of an attack or other wrong doing. However, you are concerned about affecting the normal functionality of the email server. From the following options choose how best you can achieve this objective?

Block port 25 at the firewall.
Shut off the SMTP service on the server.
Force all connections to use a username and password.
Switch from Windows Exchange to UNIX Sendmail.
None of the above.

Answer(s): E

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QUESTION: 158

Windows LAN Manager (LM) hashes are known to be weak.
Which of the following are known weaknesses of LM? (Choose three.)

Converts passwords to uppercase.
Hashes are sent in clear text over the network.
Makes use of only 32-bit encryption.
Effective length is 7 characters.

Answer(s): A,B,D

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QUESTION: 159

You have retrieved the raw hash values from a Windows 2000 Domain Controller. Using social engineering, you come to know that they are enforcing strong passwords. You understand that all users are required to use passwords that are at least 8 characters in length. All passwords must also use 3 of the 4 following categories: lower case letters, capital letters, numbers and special characters. With your existing knowledge of users, likely user account names and the possibility that they will choose the easiest passwords possible, what would be the fastest type of password cracking attack you can run against these hash values and still get results?

Online Attack
Dictionary Attack
Brute Force Attack
Hybrid Attack

Answer(s): D

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QUESTION: 160

An attacker runs netcat tool to transfer a secret file between two hosts.

He is worried about information being sniffed on the network.
How would the attacker use netcat to encrypt the information before transmitting onto the wire?

Machine A: netcat -l -p -s password 1234 < testfileMachine B: netcat <machine A IP> 1234
Machine A: netcat -l -e magickey -p 1234 < testfileMachine B: netcat <machine A IP> 1234
Machine A: netcat -l -p 1234 < testfile -pw passwordMachine B: netcat <machine A IP> 1234 -pw password
Use cryptcat instead of netcat

Answer(s): D

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