Introduction to Cybersecurity chapter 2

Which type of attack allows an attacker to use a brute force approach?

• packet sniffing

• denial of service

• password cracking

• social engineering

Which two characteristics describe a worm? (Choose two.)

• is self-replicating

• • infects computers by attaching to software code

• • executes when software is run on a computer

• travels to new computers without any intervention or knowledge of the user

In what way are zombies used in security attacks?

• They target specific individuals to gain corporate or personal information

• They probe a group of machines for open ports to learn which services are running

• 
  

  They are infected machines that carry out a DDoS attack.

• They are maliciously formed code segments used to replace legitimate applications.

What is the purpose of a rootkit?

• to deliver advertisements without user consent

• to masquerade as a legitimate program

• to replicate itself independently of any other programs

• to gain privileged access to a device while concealing itself

What is the most common goal of search engine optimization (SEO) poisoning?

• to increase web traffic to malicious sites

• to overwhelm a network device with maliciously formed packets

• to build a botnet of zombies

• 
  

  to trick someone into installing malware or divulging personal information

What is the primary goal of a DoS attack?

• to obtain all addresses in the address book within the server

• to facilitate access to external networks

• to prevent the target server from being able to handle additional requests

• to scan the data on the target server

Which example illustrates how malware might be concealed?

• An email is sent to the employees of an organization with an attachment that looks like an antivirus update, but the attachment actually consists of spyware.

• An attack is launched against the public website of an online retailer with the objective of blocking its response to visitors.

• A botnet of zombies carry personal information back to the hacker.

• A hacker uses techniques to improve the ranking of a website so that users are redirected to a malicious site.

Which tool is used to provide a list of open ports on network devices?

• Whois

• Nmap

• Ping

• Tracert