Botnets

Computer Science Master

Question 1. What is the main purpose of a botnet in launching a Distributed Denial of Service (DDoS) attack?

□ A. To steal personal information from users

□ B. To overwhelm a target’s servers or network infrastructure with excessive traffic

□ C. To send legitimate marketing emails

□ D. To mine cryptocurrency openly with user permission

Question 2. Which of the following best describes the role of a botmaster?

□ A. A security expert who removes botnets

□ B. A legitimate user who controls their own computer

□ C. The single entity that controls the network of compromised computers in a botnet

□ D. A company that provides proxy services

Question 3. Which technique is commonly used by botnets to steal user credentials?

□ A. Email spoofing

□ B. Keylogging

□ C. Volume-based DDoS attacks

□ D. Ad-click tracking

Question 4. How do botnets contribute to click fraud?

□ A. By sending spam emails with ads

□ B. By generating automated clicks on ads to inflate ad revenue without genuine interest

□ C. By mining cryptocurrency with user permission

□ D. By stealing credentials and resetting passwords

Question 5. Why is it difficult to trace and block botnet proxy services?

□ A. Because botnets use encrypted emails

□ B. Because the proxy services use centralized servers

□ C. Because botnets are decentralized and distributed across many compromised computers

□ D. Because botnets only attack during specific hours

Question 6. Fill in the blank(s)

A botnet consists of compromised computers, also called ______ or __________, which are controlled by a _____________.

Question 7. Fill in the blank(s)

Botnets use DDoS attacks to _____________ a target's servers or network with excessive __________, causing service disruptions.

Question 8. Fill in the blank(s)

In botnet spam distribution, the emails often contain ____________ attempts or __________ to trick users or infect their systems.

Question 9. Fill in the blank(s)

Keylogging is a technique used by botnets to capture _____________ and _____________ for credential theft.

Question 10. Fill in the blank(s)

Botnet cryptojacking secretly uses compromised devices to mine _____________________ without the owner's knowledge.

Question 11. What is a botnet?

Question 12. Name three types of attacks that a botnet can perform during a DDoS attack.

Question 13. How do botnets generate revenue through click fraud?

Question 14. What role do botnets play in proxy services used by malicious actors?

Question 15. What is the purpose of botnet data theft?

Question 16. Explain how a botnet can be used to disrupt online services through a DDoS attack.

Question 17. Describe the process and impact of botnet-based spam email distribution.

Question 18. Discuss how botnet proxy services help cybercriminals remain anonymous and why this makes mitigation difficult.

Botnets

Answer Sheet

Question 1. What is the main purpose of a botnet in launching a Distributed Denial of Service (DDoS) attack?

A. To steal personal information from users

□ B. To overwhelm a target’s servers or network infrastructure with excessive traffic

C. To send legitimate marketing emails

D. To mine cryptocurrency openly with user permission

Question 2. Which of the following best describes the role of a botmaster?

A. A security expert who removes botnets

B. A legitimate user who controls their own computer

□ C. The single entity that controls the network of compromised computers in a botnet

D. A company that provides proxy services

Question 3. Which technique is commonly used by botnets to steal user credentials?

A. Email spoofing

□ B. Keylogging

C. Volume-based DDoS attacks

D. Ad-click tracking

Question 4. How do botnets contribute to click fraud?

A. By sending spam emails with ads

□ B. By generating automated clicks on ads to inflate ad revenue without genuine interest

C. By mining cryptocurrency with user permission

D. By stealing credentials and resetting passwords

Question 5. Why is it difficult to trace and block botnet proxy services?

A. Because botnets use encrypted emails

B. Because the proxy services use centralized servers

□ C. Because botnets are decentralized and distributed across many compromised computers

D. Because botnets only attack during specific hours

Question 6. Fill in the blank(s)

A botnet consists of compromised computers, also called [[bots]] or [[zombies]], which are controlled by a [[botmaster]].

Question 7. Fill in the blank(s)

Botnets use DDoS attacks to [[overwhelm]] a target's servers or network with excessive [[traffic]], causing service disruptions.

Question 8. Fill in the blank(s)

In botnet spam distribution, the emails often contain [[phishing]] attempts or [[malware]] to trick users or infect their systems.

Question 9. Fill in the blank(s)

Keylogging is a technique used by botnets to capture [[usernames]] and [[passwords]] for credential theft.

Question 10. Fill in the blank(s)

Botnet cryptojacking secretly uses compromised devices to mine [[cryptocurrency]] without the owner's knowledge.

Question 11. What is a botnet?

A network of compromised computers controlled by a single entity called a botmaster.

Question 12. Name three types of attacks that a botnet can perform during a DDoS attack.

Volume-based attacks, protocol-based attacks, and application layer attacks.

Question 13. How do botnets generate revenue through click fraud?

By generating automated clicks on online advertisements to fraudulently inflate ad revenue.

Question 14. What role do botnets play in proxy services used by malicious actors?

Botnets provide proxy services by using compromised computers to relay internet traffic anonymously.

Question 15. What is the purpose of botnet data theft?

To extract sensitive information such as personal data and login credentials from infected computers.

Question 16. Explain how a botnet can be used to disrupt online services through a DDoS attack.

Question 17. Describe the process and impact of botnet-based spam email distribution.

Question 18. Discuss how botnet proxy services help cybercriminals remain anonymous and why this makes mitigation difficult.