Cybersecurity

Question 1

What method of code-breaking is used on a 2 digit code by attempting every two-digit code until you find the correct one

Accepted Answer

Brute force

Question 2

“bombes” were machines invented, with help of Alan Turing, to automate the search for the daily Enigma

Accepted Answer

True

Question 3

The least the number of possible keys, the better the system.

Accepted Answer

False

Question 4

There are only 26 possible keys and it can be broken by using the frequency of letters in the language in Caesar Cipher

Accepted Answer

True

Question 5

Using the Caesar cipher, “HELLO” is encrypted to “OLSSV” by applying a shift of 7. “HELLO” is considered the __________

Accepted Answer

plaintext

Question 6

The practice of solving and writing encryptions is called

Accepted Answer

Cryptology

Question 7

An encryption method that uses a series of interwoven Caesar ciphers based on the letters of a keyword is called

Accepted Answer

the Vigenère Cipher

Question 8

Which statement is true about the Vigenère cipher?

Accepted Answer

Vigenère cipher utilizes more than one shift value dependent on a keyword

Question 9

Encryption is used to support one of the ten principles in the CIA Triad, confidentiality.

Accepted Answer

False

Question 10

Encryption that uses a series of interwoven Caesar ciphers based on the letters of a keyword is called Vigenère Cipher

Accepted Answer

True

Question 11

The process of decrypting coded messages without being told the key is called Cryptanalysis

Accepted Answer

True

Question 12

There are a number of different cryptography methods that range in complexity, but it is always important to

Accepted Answer

all of the above

Question 13

A string of characters, sometimes strong, often weak, I'm your first line of defense that attackers seek. What am I?

Accepted Answer

password

Question 14

In a Vigenère Cipher the key length can be found by looking for patterns. Once achieved, the message can be solved by

Accepted Answer

splitting up and treating as individual Caesar ciphers.

Question 15

What is the term used in cryptography when the same key is used to encrypt and decrypt the data?

Accepted Answer

Symmetric Encryption

Question 16

An encryption method in which each letter of the message is shifted by a certain amount, called the key.

Accepted Answer

Caesar Cipher

Question 17

While Vigenère Cipher is said to be resistant to brute force and letter frequency analysis, it is possible to crack it.

Accepted Answer

True

Question 18

The oldest and simplest form of encrypting a message is known as

Accepted Answer

the Caesar Cipher or the shift cipher

Question 19

What is the term used in cryptography for the message after encryption

Accepted Answer

ciphertext

Question 20

Using the Caesar cipher, “HELLO” is encrypted to “OLSSV” by applying a shift of 7. The number 7 is the __________

Accepted Answer

key

Question 21

The Vigenère Cipher is easily cracked using brute force and letter frequency analysis.

Accepted Answer

False

Question 22

Scrambling digital information into an unreadable form is called

Accepted Answer

Cryptography

Question 23

To scramble digital information into an unreadable form is

Accepted Answer

To encrypt

Question 24

You can strengthen the encryption of a Caesar cipher by shifting the letters twice (using two keys)

Accepted Answer

False

Question 25

Encryption is used to support one of the three principles in the CIA Triad, confidentiality.

Accepted Answer

True

Question 26

CIA Triad consists of Confidentiality, Integrity, & Availability

Accepted Answer

True

Question 27

Letter analysis is the frequency of letters in a message, the most commonly used letters such as E and T, etc.

Accepted Answer

True

Question 28

Encrypted info. is only viewable by authorized users who have the key to decrypt. This is which aspect of the CIA triad?

Accepted Answer

Confidentiality

Question 29

Encryption is a way to send a message as a secret code.

Accepted Answer

True

Question 30

To unscramble digital information into an readable form is

Accepted Answer

To decrypt

Cybersecurity

Questions 30

Cybersecurity

Questions 30