You are the senior administrator for a bank. A user calls you on the telephone and says they were notified to contact you but couldn't find your information on the company website. Two days ago, an email told them there was something wrong with their acco
Phishing
As the security administrator for your organization, you must be aware of all types of attacks that can occur and plan for them. Which type of attack uses more than one computer to attack the victim?
DDoS (Distributed Denial of Service)
An alert signals you that a server in your network has a program running on it that bypasses authorization. Which type of attack has occurred?
Backdoor
An administrator at a sister company calls to report a new threat that is making the rounds. According to him, the latest danger is an attack that attempts to intervene in a communications session by inserting a computer between the two systems that are c
Man-in-the-middle attack
You've discovered that an expired certificate is being used repeatedly to gain logon privileges. Which type of attack is this most likely to be?
Replay Attack
A junior administrator comes to you in a panic. After looking at the log files, he has become convinced that an attacker is attempting to use an IP address to replace another system in the network to gain access. Which type of attack is this?
TCP/IP Hijacking
A server on your network will no longer accept connections using TCP. The server indicates that it has exceeded its session limit. Which type of attack is probably occurring?
TCP ACK Attack
A smurf attack attempts to use a broadcast ping on a network; the return address of the ping may be a valid system in your network. Which protocol does a smurf attack use to conduct the attack?
ICMP (Internet Control Message Protocol)
A user calls you in a panic. He is receiving emails from people indicating that he is inadvertently sending viruses to them. Over 200 such emails have arrived today. Which type of attack has most likely occurred?
Worm
Which type of attack denies authorized users access to network resources?
DoS (Denial of Service)
Your system has just stopped responding to keyboard commands. You noticed that this occurred when a spreadsheet was open and you dialed in to the Internet. Which kind of attack has probably occurred?
Logic Bomb
You're explaining the basics of security to upper management in an attempt to obtain an increase in the networking budget. One of the members of the management team mentions
that they've heard of a threat from a virus that attempts to mask itself by hidin
Armored Virus
What kind of virus could attach itself to the boot sector of your disk to avoid detection and report false information about file sizes?
Stealth Virus
A mobile user calls you from the road and informs you that his laptop is exhibiting erratic behavior. He reports that there were no problems until he downloaded a tic-tac-toe program
from a site that he had never visited before. Which of the following ter
Trojan Horse Virus
Your system has been acting strangely since you downloaded a file from a colleague. Upon examining your antivirus software, you notice that the virus definition file is missing. Which type of virus probably infected your system?
Retrovirus
Internal users are reporting repeated attempts to infect their systems as reported to them by pop-up messages from their virus-scanning software. According to the pop-up messages,
the virus seems to be the same in every case. What is the most likely culpr
Server is acting as a carrier for a virus.
Your system log files report an ongoing attempt to gain access to a single account. This attempt has been unsuccessful to this point. What type of attack are you most likely experiencing?
Password-guessing attack
A user reports that he is receiving an error indicating that his TCP/IP address is already in use when he turns on his computer. A static IP address has been assigned to this user's computer, and you're certain this address was not inadvertently assigned
TCP/IP Hijacking
You're working late one night, and you notice that the hard disk on your new computer is very active even though you aren't doing anything on the computer and it isn't connected to the Internet. What is the most likely suspect?
A virus is spreading in your system.
You're the administrator for a large bottling company. At the end of each month, you routinely view all logs and look for discrepancies. This month, your email system error log reports a large number of unsuccessful attempts to log on. It's apparent that
Software Exploitation Attack