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Unit 13 Cyber Defense

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is a Distributed Denial of Service (DDoS) attack? (13.3)

a)
An attempt to deny access to a website by flooding the website’s servers with millions of requests from different computers
b)
An attempt by a government to deny Internet access to its citizens
c)
An attempt by one user to deny service to another user by posting malicious material on a social network
d)
An attempt by an Internet user to access private information stored in a private database
2.

Cybercriminals typically look for a system _______ to exploit for their own benefit. (13.1)

a)
with vulnerabilities
b)
with a virus
c)
without a firewall
d)
with a strong password
3.

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? (13.3)

a)
DDos
b)
Man-in-the-middle attack
c)
Worm
d)
XSS
4.

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? (13.4)

a)
Man-in-the-middle attack
b)
DDos
c)
Worm
d)
XSS
5.

Which type of attack blocks authorized users from accessing their network? (13.3)

a)
Dos
b)
Social engineering
c)
Rootkit
d)
XSS
6.

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? (13.5)

a)
XSS
b)
DDos
c)
SQLi
d)
Worm
7.

What is ransomware? (13.2)

a)
Software that holds your data hostage until you send the attackers money.
b)
A form of cryptocurrency.
c)
Software used to protect your computer from harmful viruses.
d)
Computer equipment that is stolen and held hostage until you pay the attackers.
8.

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?(13.2)

a)
Trojan
b)
Adware
c)
Shareware
d)
Virus
9.

A computer ____ is a malicious code which self-replicates by copying itself to other applications. (13.2)

a)
virus
b)
download
c)
program
d)
worm
10.

What is the main function of a keylogger? (13.2)

a)
Records keystrokes made on a keyboard.
b)
Logs all attempts to access a file.
c)
Records keys used for encryption.
d)
Steals passwords and keys that are saved on your computer.
11.

What is the difference between a virus and a worm? (13.2)

a)
A worm spreads by itself but a virus must attach to another program.
b)
A virus can assist with other attacks but a worm cannot.
c)
A virus can infect operating systems but a worm cannot.
d)
A worm spreads by attacking systems with weak passwords and a virus attacks systems that have not been updated.
12.

Which type of attack plays on the fact that users are usually the weakest link in security? (13.3)

a)
Social Engineering
b)
Cross Site Scripting
c)
Rootkit
d)
Spyware
13.

In the field of computer science, what is meant by the term zombie? (13.3)

a)
Remotely controlled hosts
b)
Hackers that work at night
c)
Antivirus software that is out of date or has expired
d)
Viruses that remain on a system, but are no longer active
14.

Which of the following programming languages is associated with XSS? (13.5)

a)
JavaScript
b)
CSS
c)
HTML
d)
SQL
15.

What is the best way to protect against social engineering? (13.3)

a)
Train users on awareness of attacks
b)
Improve authentication methods
c)
Increase the strength of encryption
d)
Require a complex password for all users on the system
16.

What is a zero-day vulnerability? (13.3)

a)
A flaw that is known by the software vendor, but has not been addressed or fixed.
b)
A flaw that is hidden from the software vendor and taken advantage of by attackers.
c)
A flaw that is dismissed because it does not have the appropriate priority.
d)
A high-priority flaw that takes less than a day to discover and exploit.
17.

Which of the following grants an attacker access to multiple devices and their connections? (13.3)

a)
Botnet
b)
Worms
c)
Virus
d)
Trojan
18.

You receive an email that states that you have won a prize. To receive the prize, the email asks for your personal information in order to deposit the prize money into your account. In which category does this type of attack lie? (13.3)

a)
Phishing
b)
Botnets
c)
Ransomware
d)
Viruses
19.

You read a recent news article about a cybercriminal who stole a computer and was able to access the computer’s files without ever gaining access to the system’s operating system. The attacker also did not use the computer’s login or password information to gain access. What security technique could have possibly prevented this attack? (13.6)

a)
Setting a BIOS/UEFI password
b)
Installing antivirus software
c)
Encrypting the Wi-Fi connection
d)
Blocking Internet traffic with a firewall
20.

Which is not a technique typically used to prevent internal threats? (13.6)

a)
Implementing specific firewall settings
b)
Setting permissions restrictions
c)
Disabling the guest account log on option
d)
Hiding a password as it is typed in using dots or asterisks