Unit 13 Cyber Defense

What is a Distributed Denial of Service (DDoS) attack?

• An attempt to deny access to a website by flooding the website’s servers with millions of requests from different computers
• An attempt by a government to deny Internet access to its citizens
• An attempt by one user to deny service to another user by posting malicious material on a social network
• An attempt by an Internet user to access private information stored in a private database

Cybercriminals typically look for a system _______ to exploit for their own benefit.

• with vulnerabilities
• with a virus
• without a firewall
• with a strong password

Tags

CCSS.RI.5.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

There has been a recent attack on the organization that you are interning for. Your manager knows that multiple computers were used to carry out the attack. Which type of attack uses more than one computer to carry out the attack?

• DDos
• Man-in-the-middle attack
• Worm
• XSS

Your friend receives a DM (direct message) in her social media account. When she clicks on the link provided, she is prompted to put in her username and password. She doesn’t trust that this account is who they say they are. What type of attack attempts to insert a computer or system between two systems that are communicating?

• Man-in-the-middle attack
• DDos
• Worm
• XSS

Which type of attack blocks authorized users from accessing their network?

• Dos
• Social engineering
• Rootkit
• XSS

You are using your browser to research a topic for an upcoming project. When you visit one site in particular, you are instantly redirected to a site that does not seem safe. What type of attack could you have just experienced?

• XSS
• DDos
• SQLi
• Worm

What is ransomware?

• Software that holds your data hostage until you send the attackers money.
• A form of cryptocurrency.
• Software used to protect your computer from harmful viruses.
• Computer equipment that is stolen and held hostage until you pay the attackers.

Your uncle is complaining that his computer has gotten slower since he downloaded this new game onto his computer. What type of attack could this be?

• Trojan
• Adware
• Shareware
• Virus

A computer ____ is a malicious code which self-replicates by copying itself to other applications.

• virus
• download
• program
• worm

Tags

CCSS.RI.7.7

CCSS.RI.8.7

CCSS.RL.7.7

CCSS.RL.8.7

CCSS.RL.9-10.7

What is the main function of a keylogger?

• Records keystrokes made on a keyboard.
• Logs all attempts to access a file.
• Records keys used for encryption.
• Steals passwords and keys that are saved on your computer.