Question 171
You discover that all available network bandwidth is being used by some unknown service. You discover that UDP packets are being used to connect the echo service on one machine to the chargen service on another machine. What kind of attack is this?
Question 172
You have forgotten your password of an online shop. The web application of that online shop asks you to enter your email so that they can send you a new password. You enter your email [email protected]
And press the submit button.
The Web application displays the server error. What can be the reason of the error?
Question 173
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.
Question 174
Which of the following keyloggers cannot be detected by anti-virus or anti-spyware products?
Question 175
In which of the following steps of the incident handling processes does the Incident Handler make sure that all business processes and functions are back to normal and then also wants to monitor the system or processes to ensure that the system is not compromised again?