Mixed Review for Cybersecurity Level 1

Front

In cryptography, what is a cipher?

Back

An algorithm that is used to encrypt or decrypt a message.

Front

Which of the following accurately describes how to crack an encrypted message using brute force?

Back

Try every possible key until you come across the correct key.

Front

What is the resulting ciphertext when the word PASSWORD is encrypted using the Caesar cipher along with the key of 4?

Back

TEWWASVH

Front

Which of the following is an accurate comparison between the Caesar cipher and the Vigenère cipher? The Caesar cipher is harder to crack because it is resistant to brute force. The Caesar cipher is harder to crack because there are more key options to choose from. The Vigenère cipher is harder to crack because there are multiple shift values. The Vigenère cipher is harder to crack because it is resistant to pattern analysis.

Back

The Vigenère cipher is harder to crack because there are multiple shift values.

Front

Which of the following accurately describes how to crack an encrypted message using frequency analysis? Try every possible key until you come across the correct key., Use social engineering to trick someone into revealing the key., Determine the number of times each letter appears in the message., Develop an algorithm that switches the order of the letters in the message.

Back

Determine the number of times each letter appears in the message.

Front

What technique is a detective using to analyze encrypted messages when they notice that certain letters appear more frequently than others in the ciphertext?

Back

Frequency analysis

Front

Which set of letters spells a valid word when decrypted using the Caesar cipher with a key of 3? Options: XZK, HJL, RTV, MPO, SHW

Back

SHW

Front

Which of the following is not part of a person’s digital footprint? Social media posts, Emails, Direct messages through a social media platform, Internet search history

Back

Slideshow presentation saved to a computer

Front

Which of the following is an example of white hat hacking? Penetration testing, Hacking to promote social change, Programming, Finding vulnerabilities without permission

Back

Penetration testing

Front

Take a look at the following citation. Which of the following accurately describes whether or not the source is credible and reliable? Options: This website is most likely credible because it was written in the last 10 years. This website is most likely credible because it has a .com domain. This website may be unreliable because of the informal language in the title and website name. This website may be unreliable because it was last accessed more than 2 years ago.

Back

This website may be unreliable because of the informal language in the title and website name.