IS404 - SY2023

Unsafe IT practice by an employee is an example of what type of security threat?

• Internal
• External
• Physical

Ransomware is an example of what type of security threat?

• Internal
• External
• Physical

If an employee accidentally deletes data it is an example of what type of security threat?

• Internal
• External
• Physical

Which of the following refers to the process of converting a ciphertext back to its original form?

• Algorithm

• Cryptology

• Decryption

• Encryption

Cryptography originally comes from the Greek words kryptos and graphein. If graphein means "to write", what does kryptos mean?

• changed

• coded

• hidden

• transmitted

Which of the following refers to the programmatic steps used to convert an unencrypted message into an encrypted sequence of bits that represent the message?

• Algorithm

• Cryptanalysis

• Encryption

• Decryption

(True or False) The algorithm doesn't need to be kept secret, but the key does.

• True

• False

• None of the above

Which of the following is referred to as the science of encryption?

• Cryptography

• Cryptanalysis

• Cryptology

• Cryptocism

In encryption, which of the following refers to as a string of numbers or characters?

• Cipher

• Cleartext

• Cryptogram

• Key

What is Malware?

• Bad computer equipment

• Pop up adverts on your computer

• Software designed to do harm to a computer

• Fake web sites