QUESTION: 3

Which of the following is most effective against passwords ?
Select the Answer:

Dictionary Attack
BruteForce attack
Targeted Attack
Manual password Attack

Answer(s): B

Explanation:

The most effective means of password attack is brute force, in a brute force attack the program will attempt to use every possible combination of characters. While this takes longer then a dictionary attack, which uses a text file of real words, it is always capable of breaking the password.

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QUESTION: 3

Clive has been hired to perform a Black-Box test by one of his clients.
How much information will Clive obtain from the client before commencing his test?

IP Range, OS, and patches installed.
Only the IP address range.
Nothing but corporate name.
All that is available from the client site.

Answer(s): C

Explanation:

Penetration tests can be conducted in one of two ways: black-box (with no prior knowledge the infrastructure to be tested) or white-box (with complete knowledge of the infrastructure to be tested). As you might expect, there are conflicting opinions about this choice and the value that either approach will bring to a project.

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QUESTION: 3

You want to use netcat to generate huge amount of useless network data continuously for various performance testing between 2 hosts.
Which of the following commands accomplish this?

Machine A
#yes AAAAAAAAAAAAAAAAAAAAAA | nc –v –v –l –p 2222 > /dev/null
Machine B
#yes BBBBBBBBBBBBBBBBBBBBBB | nc machinea 2222 > /dev/null
Machine A
cat somefile | nc –v –v –l –p 2222
Machine B
cat somefile | nc othermachine 2222
Machine A
nc –l –p 1234 | uncompress –c | tar xvfp
Machine B
tar cfp - /some/dir | compress –c | nc –w 3 machinea 1234
Machine A
while true : do
nc –v –l –s –p 6000 machineb 2
Machine B
while true ; do
nc –v –l –s –p 6000 machinea 2
done

Answer(s): A

Explanation:

Machine A is setting up a listener on port 2222 using the nc command and then having the letter A sent an infinite amount of times, when yes is used to send data yes NEVER stops until it recieves a break signal from the terminal (Control+C), on the client end (machine B), nc is being used as a client to connect to machine A, sending the letter B and infinite amount of times, while both clients have established a TCP connection each client is infinitely sending data to each other, this process will run FOREVER until it has been stopped by an administrator or the attacker.

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QUESTION: 3

Global deployment of RFC 2827 would help mitigate what classification of attack?

Sniffing attack
Denial of service attack
Spoofing attack
Reconnaissance attack
Prot Scan attack

Answer(s): C

Explanation:

RFC 2827 - Network Ingress Filtering: Defeating Denial of Service Attacks which employ IP Source Address Spoofing

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