13.3.9

Which of the following statements about the use of anti-virus software is correct?

An attacker sets up 100 drone computers that flood a DNS server with invalid requests. This is an example of which kind of attack?

Which of the following is a form of denial of service attack that uses spoofed ICMP packets to flood a victim with echo requests using a bounce/amplification network?

An attacker captures packets as they travel from one host to another with the intent of altering the contents of the packets. Which type of attack is being executed?

Which option is a program that appears to be a legitimate application, utility, game, or screensaver and performs malicious activities surreptitiously?

Which type of activity changes or falsifies information in order to mislead or re-direct traffic?

An attacker sends an unwanted and unsolicited email message to multiple recipients with an attachment that contains malware. What kind of attack has occurred in this scenario?

An attacker uses an exploit to push a modified hosts file to client systems. This hosts file redirects traffic from legitimate tax preparation sites to malicious sites to gather personal and financial information. What kind of exploit has been used in this scenario? (Select two. Both responses are different names for the same exploit.)

A programmer that fails to check the length of input before processing leaves his code vulnerable to what form of common attack?

You have installed anti-malware software that checks for viruses in email attachments. You configure the software to quarantine any files with problems. You receive an email with an important attachment, but the attachment is not there. Instead, you see a message that the file has been quarantined by the anti-malware software. What has happened to the file?

If your anti-virus software does not detect and remove a virus, what should you try first?

Which of the following measures are you most likely to implement to protect a system from a worm or Trojan horse?

To tightly control the anti-malware settings on your computer, you elect to update the signature file manually. Even though you vigilantly update the signature file, the machine becomes infected with a new type of malware. Which of the following actions would best prevent this scenario from occurring again?

You have installed anti-virus software on the computers on your network. You update the definition and engine files and configure the software to update those files every day. What else should you do to protect your systems from malware? (Select two.)

While using the internet, you type the URL of one of your favorite sites in the browser. Instead of going to the correct site, the browser displays a completely different website. When you use the IP address of the web server, the correct site is displayed. Which type of attack has likely occurred?