Adam works as a Security Analyst for Umbrella Inc. CEO of the company ordered him to implement two-factor authentication for the employees to access their networks. He has told him that he would like to use some type of hardware device in tandem with a security or identifying pin number. Adam decides to implement smart cards but they are not cost effective.
Which of the following types of hardware devices will Adam use to implement two-factor authentication?
Buffer overflows are one of the major errors used for exploitation on the Internet today. A buffer overflow occurs when a particular operation/function writes more data into a variable than the variable was designed to hold.
Which of the following are the two popular types of buffer overflows?
Each correct answer represents a complete solution. Choose two.
You are the Administrator for a corporate network. You are concerned about denial of service attacks.
Which of the following measures would be most helpful in defending against a Denial-of-Service (DoS) attack?
John used to work as a Network Administrator for We-are-secure Inc. Now he has resigned from the company for personal reasons. He wants to send out some secret information of the company. To do so, he takes an image file and simply uses a tool image hide and embeds the secret file within an image file of the famous actress, Jennifer Lopez, and sends it to his Yahoo mail id. Since he is using the image file to send the data, the mail server of his company is unable to filter this mail. Which of the following techniques is he performing to accomplish his task?
You run the following bash script in Linux:
for i in 'cat hostlist.txt' ;do
nc -q 2 -v $i 80 < request.txt
done
where, hostlist.txt file contains the list of IP addresses and request.txt is the output file. Which of the following tasks
do you want to perform by running this script?
