Which of the following attacks involves multiple compromised systems to attack a single target?
Which of the following wireless network security solutions refers to an authentication process in which a user can connect wireless access points to a centralized server to ensure that all hosts are properly authenticated?
Which of the following penetration testing phases involves gathering data from whois, DNS, and network scanning, which helps in mapping a target network and provides valuable information regarding the operating system and applications running on the systems?
A Denial-of-Service (DoS) attack is mounted with the objective of causing a negative impact on the performance of a computer or network. It is also known as network saturation attack or bandwidth consumption attack. Attackers perform DoS attacks by sending a large number of protocol packets to a network. The problems caused by a DoS attack are as follows:
l Saturation of network resources
l Disruption of connections between two computers, thereby preventing communications between services
l Disruption of services to a specific computer
l Failure to access a Web site
l Increase in the amount of spam
Which of the following can be used as countermeasures against DoS attacks?
Each correct answer represents a complete solution. Choose all that apply.
Which of the following is the difference between SSL and S-HTTP?
Which of the following techniques can be used to map 'open' or 'pass through' ports on a gateway?
Adam, a malicious hacker has successfully gained unauthorized access to the Linux system of Umbrella Inc. Web server of the company runs on Apache. He has downloaded sensitive documents and database files from the computer.
After performing these malicious tasks, Adam finally runs the following command on the Linux command box before disconnecting.
for (( i = 0;i<11;i++ )); do dd if=/dev/random of=/dev/hda && dd if=/dev/zero of=/dev/hda done
Which of the following actions does Adam want to perform by the above command?
You execute the following netcat command:
c:\target\nc -1 -p 53 -d -e cmd.exe
What action do you want to perform by issuing the above command?
Which of the following protocol loggers is used to detect ping sweep?
Which of the following is an Internet mapping technique that relies on various BGP collectors that collect information such as routing updates and tables and provide this information publicly?
