Which of the following Netcat commands would be used to perform a UDP scan of the lower 1024 ports?
Answer(s): D
The proper syntax for a UDP scan using Netcat is "Netcat -u -v -w2 <host> 1-1024". Netcat is considered the Swiss-army knife of hacking tools because it is so versatile.
What port number is used by Kerberos protocol?
Answer(s): B
Kerberos traffic uses UDP/TCP protocol source and destination port 88.
Which of the following built-in C/C++ functions you should avoid to prevent your program from buffer overflow attacks?
Answer(s): A,B,C
When hunting buffer overflows, the first thing to look for is functions which write into arrays without any way to know the amount of space available. If you get to define the function, you can pass a length parameter in, or ensure that every array you ever pass to it is at least as big as the hard-coded maximum amount it will write. If you're using a function someone else (like, say, the compiler vendor) has provided then avoiding functions like gets(), which take some amount of data over which you have no control and stuff it into arrays they can never know the size of, is a good start. Make sure that functions like the str...() family which expect NUL-terminated strings actually get them - store a '\0' in the last element of each array involved just before you call the function, if necessary. Strscock() is not a valid C/C++ function.
Bob is a Junior Administrator at ABC Company. He is installing the RedHat Enterprise Linux on his machine. At installation time, he removed the “Use MD5” options. What will be the hashing standard?
crypt() will return an encrypted string using the standard Unix DES-based encryption algorithm or alternative algorithms that may be available on the system. By removing the “Use MD5” option Bob forces crypt() to revert to DES encryption.
In order to attack a wireless network, you put up an access point and override the signal of the real access point. As users send authentication data, you are able to capture it. What kind of attack is this?
Answer(s): A
The definition of a Rogue access point is:1. A wireless access point (AP) installed by an employee without the consent of the IT department. Without the proper security configuration, users have exposed their company's network to the outside world.2. An access point (AP) set up by an attacker outside a facility with a wireless network. Also called an "evil twin, " the rogue AP picks up beacons (signals that advertise its presence) from the company's legitimate AP and transmits identical beacons, which some client machines inside the building associate with.
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